Methyl Alcohol

Formula: CH₄O
Molecular weight: 32.0419
IUPAC Standard InChI:
InChI=1S/CH4O/c1-2/h2H,1H3

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IUPAC Standard InChIKey: OKKJLVBELUTLKV-UHFFFAOYSA-N
CAS Registry Number: 67-56-1
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Isotopologues:
Other names: Methanol; Carbinol; Methyl hydroxide; Methylol; Monohydroxymethane; Wood alcohol; CH3OH; Colonial spirit; Columbian spirit; Hydroxymethane; Wood naphtha; Alcool methylique; Alcool metilico; Columbian spirits; Metanolo; Methylalkohol; Metylowy alkohol; Pyroxylic spirit; Wood spirit; Rcra waste number U154; UN 1230; Pyro alcohol; Spirit of wood; Bieleski's solution; NSC 85232
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Ion clustering data

Go To: Top, References, Notes

Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

+ Methyl Alcohol = ( )

By formula: Br^- + CH₄O = (Br^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.50 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	13.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	17.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	8.00 ± 0.10	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	8.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B
_rG°	8.4 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..Br- of Hiraoka, Mizure, et al., 19882; B

( Methyl Alcohol ) + = ( 2)

By formula: (Br^- CH₄O) + CH₄O = (Br^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.00 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	12.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.7	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.62	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	6.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 2 Methyl Alcohol ) + = ( 3)

By formula: (Br^- 2CH₄O) + CH₄O = (Br^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.50 ± 0.50	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	10.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	4.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 3 Methyl Alcohol ) + = ( 4)

By formula: (Br^- 3CH₄O) + CH₄O = (Br^- 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	3.0 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 4 Methyl Alcohol ) + = ( 5)

By formula: (Br^- 4CH₄O) + CH₄O = (Br^- 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 5 Methyl Alcohol ) + = ( 6)

By formula: (Br^- 5CH₄O) + CH₄O = (Br^- 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 6 Methyl Alcohol ) + = ( 7)

By formula: (Br^- 6CH₄O) + CH₄O = (Br^- 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 7 Methyl Alcohol ) + = ( 8)

By formula: (Br^- 7CH₄O) + CH₄O = (Br^- 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 8 Methyl Alcohol ) + = ( 9)

By formula: (Br^- 8CH₄O) + CH₄O = (Br^- 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

( 9 Methyl Alcohol ) + = ( 10)

By formula: (Br^- 9CH₄O) + CH₄O = (Br^- 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

CHO^- + Methyl Alcohol = (CHO^- )

By formula: CHO^- + CH₄O = (CHO^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	28.8	kcal/mol	PHPMS	Meot-ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.7	cal/mol*K	PHPMS	Meot-ner and Sieck, 1986	gas phase; M

+ Methyl Alcohol = ( )

By formula: CHO₂^- + CH₄O = (CHO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.6 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.6	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.5 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

CH₃O^- + Methyl Alcohol = (CH₃O^- )

By formula: CH₃O^- + CH₄O = (CH₃O^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	29.3 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B,M
_rH°	28.80 ± 0.30	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B,M
_rH°	29.4 ± 2.5	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
_rH°	19.0 ± 2.0	kcal/mol	N/A	Moylan, Dodd, et al., 1985	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rS°	31.8	cal/mol*K	PHPMS	Paul and Kebarle, 1990	gas phase; M
_rS°	26.7	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	20.30	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
_rG°	19.8 ± 1.0	kcal/mol	TDAs	Paul and Kebarle, 1990	gas phase; B
_rG°	20.80 ± 0.50	kcal/mol	TDAs	Meot-ner and Sieck, 1986	gas phase; B
_rG°	20.3 ± 1.6	kcal/mol	TDAs	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
19.1	296.	FA	MacKay and Bohme, 1978	gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

(CH₃O^- Methyl Alcohol ) + = (CH₃O^- 2)

By formula: (CH₃O^- CH₄O) + CH₄O = (CH₃O^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.8	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- 2 Methyl Alcohol ) + = (CH₃O^- 3)

By formula: (CH₃O^- 2CH₄O) + CH₄O = (CH₃O^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.3	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- 3 Methyl Alcohol ) + = (CH₃O^- 4)

By formula: (CH₃O^- 3CH₄O) + CH₄O = (CH₃O^- 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.4	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₃O^- ) + Methyl Alcohol = (CH₃O^- )

By formula: (CH₃O^- H₂O) + CH₄O = (CH₃O^- CH₄O H₂O)

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
13.7	296.	FA	MacKay and Bohme, 1978	gas phase; From thermochemical cycle,switching reaction(CH3O-)2H2O; Meot-Ner(Mautner), 1986; M

CH₅O⁺ + Methyl Alcohol = (CH₅O⁺ )

By formula: CH₅O⁺ + CH₄O = (CH₅O⁺ CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	32.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	32.3	kcal/mol	PHPMS	Szulejko and McMahon, 1992	gas phase; M
_rH°	32.1	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
_rH°	33.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
_rH°	33.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	29.2	cal/mol*K	PHPMS	Szulejko and McMahon, 1992	gas phase; M
_rS°	26.6	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
_rS°	30.5	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
_rS°	28.5	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	25.2	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O; Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

(CH₅O⁺ Methyl Alcohol ) + = (CH₅O⁺ 2)

By formula: (CH₅O⁺ CH₄O) + CH₄O = (CH₅O⁺ 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	21.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
_rH°	21.3	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	25.8	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; M
_rS°	28.2	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 2 Methyl Alcohol ) + = (CH₅O⁺ 3)

By formula: (CH₅O⁺ 2CH₄O) + CH₄O = (CH₅O⁺ 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	16.1	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	28.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 3 Methyl Alcohol ) + = (CH₅O⁺ 4)

By formula: (CH₅O⁺ 3CH₄O) + CH₄O = (CH₅O⁺ 4CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	13.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	28.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 4 Methyl Alcohol ) + = (CH₅O⁺ 5)

By formula: (CH₅O⁺ 4CH₄O) + CH₄O = (CH₅O⁺ 5CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	12.5	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	31.1	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 5 Methyl Alcohol ) + = (CH₅O⁺ 6)

By formula: (CH₅O⁺ 5CH₄O) + CH₄O = (CH₅O⁺ 6CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.3	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	11.9	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.5	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	32.9	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 6 Methyl Alcohol ) + = (CH₅O⁺ 7)

By formula: (CH₅O⁺ 6CH₄O) + CH₄O = (CH₅O⁺ 7CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.0	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rH°	12.0	kcal/mol	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.7	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
_rS°	35.7	cal/mol*K	PHPMS	Grimsrud and Kebarle, 1973	gas phase; M

(CH₅O⁺ 7 Methyl Alcohol ) + = (CH₅O⁺ 8)

By formula: (CH₅O⁺ 7CH₄O) + CH₄O = (CH₅O⁺ 8CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.4	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.9	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ 8 Methyl Alcohol ) + = (CH₅O⁺ 9)

By formula: (CH₅O⁺ 8CH₄O) + CH₄O = (CH₅O⁺ 9CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.1	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.9	200.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ 9 Methyl Alcohol ) + = (CH₅O⁺ 10)

By formula: (CH₅O⁺ 9CH₄O) + CH₄O = (CH₅O⁺ 10CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.7	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.5	200.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ 10 Methyl Alcohol ) + = (CH₅O⁺ 11)

By formula: (CH₅O⁺ 10CH₄O) + CH₄O = (CH₅O⁺ 11CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ 11 Methyl Alcohol ) + = (CH₅O⁺ 12)

By formula: (CH₅O⁺ 11CH₄O) + CH₄O = (CH₅O⁺ 12CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.5	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.7	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ 12 Methyl Alcohol ) + = (CH₅O⁺ 13)

By formula: (CH₅O⁺ 12CH₄O) + CH₄O = (CH₅O⁺ 13CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	184.	PHPMS	Meot-Ner (Mautner), 1992	gas phase; M

(CH₅O⁺ Methyl Alcohol ) + = (CH₅O⁺ 2 )

By formula: (CH₅O⁺ CH₄O H₂O) + CH₄O = (CH₅O⁺ 2CH₄O H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	16.4	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.5	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

(CH₅O⁺ ) + Methyl Alcohol = (CH₅O⁺ )

By formula: (CH₅O⁺ H₂O) + CH₄O = (CH₅O⁺ CH₄O H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	24.5	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.	cal/mol*K	N/A	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
11.6	452.	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n, Entropy change calculated or estimated; M

(CH₅O⁺ 2) + Methyl Alcohol = (CH₅O⁺ 2)

By formula: (CH₅O⁺ 2H₂O) + CH₄O = (CH₅O⁺ CH₄O 2H₂O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	18.0	kcal/mol	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.3	cal/mol*K	PHPMS	Meot-Ner(Mautner), 1986	gas phase; n; M

CH₆N⁺ + Methyl Alcohol = (CH₆N⁺ )

By formula: CH₆N⁺ + CH₄O = (CH₆N⁺ CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	19.0	kcal/mol	PHPMS	Meot-Ner, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.2	cal/mol*K	PHPMS	Meot-Ner, 1984	gas phase; M

CN^- + Methyl Alcohol = (CN^- )

By formula: CN^- + CH₄O = (CN^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.70 ± 0.80	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
_rH°	16.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
_rH°	16.5 ± 3.5	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.	cal/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
_rS°	24.3	cal/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	8.80 ± 0.20	kcal/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
_rG°	10.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
_rG°	9.2 ± 2.3	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

C₂H^- + Methyl Alcohol = C₃H₅O^-

By formula: C₂H^- + CH₄O = C₃H₅O^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.90	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
_rG°	11.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B

+ Methyl Alcohol = ( )

By formula: C₂H₃O₂^- + CH₄O = (C₂H₃O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(C₂H₄N⁺ Methyl Alcohol ) + = (C₂H₄N⁺ 2)

By formula: (C₂H₄N⁺ CH₄O) + CH₄O = (C₂H₄N⁺ 2CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.9	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.0	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ 2 Methyl Alcohol ) + = (C₂H₄N⁺ 3)

By formula: (C₂H₄N⁺ 2CH₄O) + CH₄O = (C₂H₄N⁺ 3CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.9	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.4	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ Methyl Alcohol ) + = (C₂H₄N⁺ 2 )

By formula: (C₂H₄N⁺ CH₄O C₂H₃N) + CH₄O = (C₂H₄N⁺ 2CH₄O C₂H₃N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.7	kcal/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.1	cal/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

C₂H₄NO₂^- + Methyl Alcohol = C₃H₈NO₃^-

By formula: C₂H₄NO₂^- + CH₄O = C₃H₈NO₃^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.00 ± 0.50	kcal/mol	TDAs	Nieckarz, Atkins, et al., 2008	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	9.5 ± 1.0	kcal/mol	TDAs	Nieckarz, Atkins, et al., 2008	gas phase; B

C₂H₅O⁺ + Methyl Alcohol = (C₂H₅O⁺ )

By formula: C₂H₅O⁺ + CH₄O = (C₂H₅O⁺ CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	30.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.9	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	22.3	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₂H₅O^- + Methyl Alcohol = (C₂H₅O^- )

By formula: C₂H₅O^- + CH₄O = (C₂H₅O^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	27.3 ± 2.9	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
_rH°	25.6 ± 1.9	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	18.6 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
13.4	296.	FA	Mackay, Rakshit, et al., 1982	gas phase; From thermochemical cycle,switching reaction(CH3O-)CH3OH; Caldwell and Kebarle, 1986, Taft, 1983; M

C₂H₇O⁺ + Methyl Alcohol = (C₂H₇O⁺ )

By formula: C₂H₇O⁺ + CH₄O = (C₂H₇O⁺ CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	26.3	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.1	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ Methyl Alcohol ) + = (C₂H₇O⁺ 2)

By formula: (C₂H₇O⁺ CH₄O) + CH₄O = (C₂H₇O⁺ 2CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	18.8	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.9	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ 2 Methyl Alcohol ) + = (C₂H₇O⁺ 3)

By formula: (C₂H₇O⁺ 2CH₄O) + CH₄O = (C₂H₇O⁺ 3CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.9	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	31.2	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ 3 Methyl Alcohol ) + = (C₂H₇O⁺ 4)

By formula: (C₂H₇O⁺ 3CH₄O) + CH₄O = (C₂H₇O⁺ 4CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.7	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	30.8	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ Methyl Alcohol ) + = (C₂H₇O⁺ 2 )

By formula: (C₂H₇O⁺ CH₄O C₂H₆O) + CH₄O = (C₂H₇O⁺ 2CH₄O C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.1	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	30.6	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ 2 Methyl Alcohol ) + = (C₂H₇O⁺ 3 )

By formula: (C₂H₇O⁺ 2CH₄O C₂H₆O) + CH₄O = (C₂H₇O⁺ 3CH₄O C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.2	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.5	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

(C₂H₇O⁺ ) + Methyl Alcohol = (C₂H₇O⁺ )

By formula: (C₂H₇O⁺ C₂H₆O) + CH₄O = (C₂H₇O⁺ CH₄O C₂H₆O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	18.1	kcal/mol	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	30.6	cal/mol*K	PHPMS	Hiraoka, Grimsrud, et al., 1974	gas phase; n; M

C₂H₇O⁺ + Methyl Alcohol = (C₂H₇O⁺ )

By formula: C₂H₇O⁺ + CH₄O = (C₂H₇O⁺ CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	29.6	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.6	cal/mol*K	N/A	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	21.7	kcal/mol	ICR	Larson and McMahon, 1982	gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986; M

C₂H₇O₂^- + 2 Methyl Alcohol = C₃H₁₁O₃^-

By formula: C₂H₇O₂^- + 2CH₄O = C₃H₁₁O₃^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.4 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	13.10 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₂H₇O₂^- + + Methyl Alcohol = C₂H₉O₃^-

By formula: C₂H₇O₂^- + H₂O + CH₄O = C₂H₉O₃^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.8 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.10 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₂H₉O₃^- + 2 + Methyl Alcohol = C₂H₁₁O₄^-

By formula: C₂H₉O₃^- + 2H₂O + CH₄O = C₂H₁₁O₄^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.2 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.90 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

+ Methyl Alcohol = ( )

By formula: C₃H₃N₂^- + CH₄O = (C₃H₃N₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.1	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.2	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

C₃H₇O⁺ + Methyl Alcohol = (C₃H₇O⁺ )

By formula: C₃H₇O⁺ + CH₄O = (C₃H₇O⁺ CH₄O)

Bond type: Hydrogen bonds of the type OH-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.1	kcal/mol	PHPMS	Meot-Ner (Mautner), Ross, et al., 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Ross, et al., 1985	gas phase; M

C₃H₇O^- + Methyl Alcohol = (C₃H₇O^- )

By formula: C₃H₇O^- + CH₄O = (C₃H₇O^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	26.9 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	18.2 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

C₃H₉Si⁺ + Methyl Alcohol = (C₃H₉Si⁺ )

By formula: C₃H₉Si⁺ + CH₄O = (C₃H₉Si⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	39.2	kcal/mol	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.7	cal/mol*K	N/A	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
25.3	468.	PHPMS	Wojtyniak and Stone, 1986	gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

C₃H₉Sn⁺ + Methyl Alcohol = (C₃H₉Sn⁺ )

By formula: C₃H₉Sn⁺ + CH₄O = (C₃H₉Sn⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	32.6	kcal/mol	PHPMS	Stone and Splinter, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	32.	cal/mol*K	PHPMS	Stone and Splinter, 1984	gas phase; M

C₃H₁₀N⁺ + Methyl Alcohol = (C₃H₁₀N⁺ )

By formula: C₃H₁₀N⁺ + CH₄O = (C₃H₁₀N⁺ CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.1	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.0	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ Methyl Alcohol ) + = (C₃H₁₀N⁺ 2)

By formula: (C₃H₁₀N⁺ CH₄O) + CH₄O = (C₃H₁₀N⁺ 2CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.7	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.8	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ 2 Methyl Alcohol ) + = (C₃H₁₀N⁺ 3)

By formula: (C₃H₁₀N⁺ 2CH₄O) + CH₄O = (C₃H₁₀N⁺ 3CH₄O)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.5	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.0	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ Methyl Alcohol ) + = (C₃H₁₀N⁺ 2 )

By formula: (C₃H₁₀N⁺ CH₄O C₃H₉N) + CH₄O = (C₃H₁₀N⁺ 2CH₄O C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.5	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

(C₃H₁₀N⁺ ) + Methyl Alcohol = (C₃H₁₀N⁺ )

By formula: (C₃H₁₀N⁺ C₃H₉N) + CH₄O = (C₃H₁₀N⁺ CH₄O C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.6	kcal/mol	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.2	cal/mol*K	PHPMS	El-Shall, Daly, et al., 1992	gas phase; M

C₃H₁₁O₃^- + 3 Methyl Alcohol = C₄H₁₅O₄^-

By formula: C₃H₁₁O₃^- + 3CH₄O = C₄H₁₅O₄^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.0 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	7.20 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₃H₁₁O₃^- + + 2 Methyl Alcohol = C₃H₁₃O₄^-

By formula: C₃H₁₁O₃^- + H₂O + 2CH₄O = C₃H₁₃O₄^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.8 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.40 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

C₄H₂O₃^- + Methyl Alcohol = (C₄H₂O₃^- )

By formula: C₄H₂O₃^- + CH₄O = (C₄H₂O₃^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	4.7 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.7	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( )

By formula: C₄H₄N^- + CH₄O = (C₄H₄N^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	18.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.5	cal/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₄H₉O^- + Methyl Alcohol = (C₄H₉O^- )

By formula: C₄H₉O^- + CH₄O = (C₄H₉O^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	25.5 ± 1.0	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B,M
_rH°	23.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
_rH°	26.0 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.9	cal/mol*K	N/A	Meot-Ner and Sieck, 1986	gas phase; Entropy change calculated or estimated; M
_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.20	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
_rG°	17.1 ± 1.6	kcal/mol	TDEq	Meot-Ner and Sieck, 1986	gas phase; B
_rG°	17.3 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; B,M

C₄H₁₁O₂⁺ + Methyl Alcohol = (C₄H₁₁O₂⁺ )

By formula: C₄H₁₁O₂⁺ + CH₄O = (C₄H₁₁O₂⁺ CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	22.0	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ Methyl Alcohol ) + = (C₄H₁₁O₂⁺ 2)

By formula: (C₄H₁₁O₂⁺ CH₄O) + CH₄O = (C₄H₁₁O₂⁺ 2CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.4	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.6	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ 2 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ 3)

By formula: (C₄H₁₁O₂⁺ 2CH₄O) + CH₄O = (C₄H₁₁O₂⁺ 3CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.6	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ 3 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ 4)

By formula: (C₄H₁₁O₂⁺ 3CH₄O) + CH₄O = (C₄H₁₁O₂⁺ 4CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.2	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.3	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ 4 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ 5)

By formula: (C₄H₁₁O₂⁺ 4CH₄O) + CH₄O = (C₄H₁₁O₂⁺ 5CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.2	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.2	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

(C₄H₁₁O₂⁺ 5 Methyl Alcohol ) + = (C₄H₁₁O₂⁺ 6)

By formula: (C₄H₁₁O₂⁺ 5CH₄O) + CH₄O = (C₄H₁₁O₂⁺ 6CH₄O)

Bond type: Hydrogen bonds between protonated and neutral organics

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.9	kcal/mol	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.0	cal/mol*K	PHPMS	Meot-Ner (Mautner), Sieck, et al., 1994	gas phase; M

C₄H₁₅O₄^- + 4 Methyl Alcohol = C₅H₁₉O₅^-

By formula: C₄H₁₅O₄^- + 4CH₄O = C₅H₁₉O₅^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.4 ± 1.0	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	4.70 ± 0.50	kcal/mol	TDAs	Meot-Ner(Mautner), 1986	gas phase; B

+ Methyl Alcohol = ( )

By formula: C₅H₅^- + CH₄O = (C₅H₅^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.2 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.9 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₅H₁₁O^- + Methyl Alcohol = (C₅H₁₁O^- )

By formula: C₅H₁₁O^- + CH₄O = (C₅H₁₁O^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	25.7 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	17.0 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

C₆F₄O₂^- + Methyl Alcohol = (C₆F₄O₂^- )

By formula: C₆F₄O₂^- + CH₄O = (C₆F₄O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	3.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.0	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.4	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.4	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Methyl Alcohol = (C₆H₄ClNO₂^- )

By formula: C₆H₄ClNO₂^- + CH₄O = (C₆H₄ClNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.6 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.6	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.8	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.0	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Methyl Alcohol = (C₆H₄FNO₂^- )

By formula: C₆H₄FNO₂^- + CH₄O = (C₆H₄FNO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.8 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.8	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.6 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄NO₃^- + Methyl Alcohol = (C₆H₄NO₃^- )

By formula: C₆H₄NO₃^- + CH₄O = (C₆H₄NO₃^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.0 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄NO₃^- + Methyl Alcohol = (C₆H₄NO₃^- )

By formula: C₆H₄NO₃^- + CH₄O = (C₆H₄NO₃^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	2.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
2.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	3.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Methyl Alcohol = (C₆H₄N₂O₄^- )

By formula: C₆H₄N₂O₄^- + CH₄O = (C₆H₄N₂O₄^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	3.8 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.8	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( )

By formula: C₆H₄O₂^- + CH₄O = (C₆H₄O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	5.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
5.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₅NO₂^- + Methyl Alcohol = (C₆H₅NO₂^- )

By formula: C₆H₅NO₂^- + CH₄O = (C₆H₅NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.10 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.1	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	7.30 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B
_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Methyl Alcohol = ( )

By formula: C₆H₅S^- + CH₄O = (C₆H₅S^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.4	kcal/mol	PHPMS	Sieck and Meot-ner, 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.0	cal/mol*K	PHPMS	Sieck and Meot-ner, 1989	gas phase; M

+ Methyl Alcohol = C₇H₉OS^-

By formula: C₆H₅S^- + CH₄O = C₇H₉OS^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.40 ± 0.10	kcal/mol	TDAs	Sieck and Meot-ner, 1989	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.50 ± 0.30	kcal/mol	TDAs	Sieck and Meot-ner, 1989	gas phase; B

C₆H₉^- + Methyl Alcohol = C₇H₁₃O^-

By formula: C₆H₉^- + CH₄O = C₇H₁₃O^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.8 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	11.50	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
_rG°	10.7 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B

C₆H₁₁S₂^- + Methyl Alcohol = (C₆H₁₁S₂^- )

By formula: C₆H₁₁S₂^- + CH₄O = (C₆H₁₁S₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.9 ± 2.5	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	13.2 ± 1.6	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

+ Methyl Alcohol = ( )

By formula: C₇F₁₄^- + CH₄O = (C₇F₁₄^- CH₄O)

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.4	308.	PHPMS	Knighton, Zook, et al., 1990	gas phase; M

C₇H₄F₃NO₂^- + Methyl Alcohol = (C₇H₄F₃NO₂^- )

By formula: C₇H₄F₃NO₂^- + CH₄O = (C₇H₄F₃NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.6 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	4.9 ± 1.6	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	4.7 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.7	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	4.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Methyl Alcohol = (C₇H₄N₂O₂^- )

By formula: C₇H₄N₂O₂^- + CH₄O = (C₇H₄N₂O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.9 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.6	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	4.1 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.5	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₂^- + Methyl Alcohol = (C₇H₇NO₂^- )

By formula: C₇H₇NO₂^- + CH₄O = (C₇H₇NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.4 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₇NO₃^- + Methyl Alcohol = (C₇H₇NO₃^- )

By formula: C₇H₇NO₃^- + CH₄O = (C₇H₇NO₃^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.1 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.1	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₃^- + Methyl Alcohol = (C₇H₇NO₃^- )

By formula: C₇H₇NO₃^- + CH₄O = (C₇H₇NO₃^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.3 ± 2.0	kcal/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.4	cal/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.3 ± 2.0	kcal/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₈H₅^- + Methyl Alcohol = (C₈H₅^- )

By formula: C₈H₅^- + CH₄O = (C₈H₅^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.5 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
_rH°	21.4 ± 2.9	kcal/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.3	cal/mol*K	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	11.0 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; B
_rG°	12.7 ± 2.0	kcal/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M

C₈H₉NO₂^- + Methyl Alcohol = (C₈H₉NO₂^- )

By formula: C₈H₉NO₂^- + CH₄O = (C₈H₉NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	6.3 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₈H₁₇O₄⁺ + Methyl Alcohol = (C₈H₁₇O₄⁺ )

By formula: C₈H₁₇O₄⁺ + CH₄O = (C₈H₁₇O₄⁺ CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
_rH°	19.5	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	34.0	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

C₉H₇^- + Methyl Alcohol = C₁₀H₁₁O^-

By formula: C₉H₇^- + CH₄O = C₁₀H₁₁O^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.6 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.20	kcal/mol	IMRE	Mustanir, Matsuoka, et al., 2006	gas phase; B
_rG°	11.1 ± 2.0	kcal/mol	IMRE	Chabinyc and Brauman, 1999	gas phase; Anchored to MeOH «DELTA»Gacid=375.2; B

C₁₀H₄Cl₂O₂^- + Methyl Alcohol = (C₁₀H₄Cl₂O₂^- )

By formula: C₁₀H₄Cl₂O₂^- + CH₄O = (C₁₀H₄Cl₂O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	<1.5 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
1.5	343.	PHPMS	Chowdhury, 1987	gas phase; DG<; M

+ Methyl Alcohol = ( )

By formula: C₁₀H₆O₂^- + CH₄O = (C₁₀H₆O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rG°	4.6 ± 1.6	kcal/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.6	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₁₀H₂₁O₅⁺ + Methyl Alcohol = (C₁₀H₂₁O₅⁺ )

By formula: C₁₀H₂₁O₅⁺ + CH₄O = (C₁₀H₂₁O₅⁺ CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.0	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.0	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

C₁₂H₂₅O₆⁺ + Methyl Alcohol = (C₁₂H₂₅O₆⁺ )

By formula: C₁₂H₂₅O₆⁺ + CH₄O = (C₁₂H₂₅O₆⁺ CH₄O)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.0	kcal/mol	PHPMS	Sharma and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.5	cal/mol*K	PHPMS	Sharma and Kebarle, 1984	gas phase; M

+ Methyl Alcohol = ( )

By formula: Cl^- + CH₄O = (Cl^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17. ± 3.	kcal/mol	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
_rS°	24.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
_rS°	22.0	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
_rS°	22.9	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
_rS°	14.8	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	10.1 ± 0.8	kcal/mol	AVG	N/A	Average of 10 values; Individual data points

( Methyl Alcohol ) + = ( 2)

By formula: (Cl^- CH₄O) + CH₄O = (Cl^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.10 ± 0.40	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	13.70 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
_rH°	14.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
_rH°	13.00 ± 0.70	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.2	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
_rS°	22.0	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
_rS°	19.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	7.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	7.10	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rG°	6.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
_rG°	7.20 ± 0.40	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( 2 Methyl Alcohol ) + = ( 3)

By formula: (Cl^- 2CH₄O) + CH₄O = (Cl^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	10.80 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B,M
_rH°	11.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
_rH°	12.30 ± 0.60	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
_rS°	22.7	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M
_rS°	23.6	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	4.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rG°	4.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
_rG°	5.20 ± 0.30	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( 3 Methyl Alcohol ) + = ( 4)

By formula: (Cl^- 3CH₄O) + CH₄O = (Cl^- 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
_rH°	10.50	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rH°	11.20 ± 0.60	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.9	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
_rS°	26.4	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	3.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
_rG°	3.70	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rG°	3.30 ± 0.20	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( 4 Methyl Alcohol ) + = ( 5)

By formula: (Cl^- 4CH₄O) + CH₄O = (Cl^- 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
_rH°	10.50 ± 0.50	kcal/mol	N/A	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
_rS°	25.5	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
_rG°	2.90 ± 0.10	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( 5 Methyl Alcohol ) + = ( 6)

By formula: (Cl^- 5CH₄O) + CH₄O = (Cl^- 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.2	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( 6 Methyl Alcohol ) + = ( 7)

By formula: (Cl^- 6CH₄O) + CH₄O = (Cl^- 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( 7 Methyl Alcohol ) + = ( 8)

By formula: (Cl^- 7CH₄O) + CH₄O = (Cl^- 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	7.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	19.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( 8 Methyl Alcohol ) + = ( 9)

By formula: (Cl^- 8CH₄O) + CH₄O = (Cl^- 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	7.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.6	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( 9 Methyl Alcohol ) + = ( 10)

By formula: (Cl^- 9CH₄O) + CH₄O = (Cl^- 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	7.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.1	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

( 10 Methyl Alcohol ) + = ( 11)

By formula: (Cl^- 10CH₄O) + CH₄O = (Cl^- 11CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	7.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.	cal/mol*K	N/A	Hiraoka and Mizuse, 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B

( Methyl Alcohol ) + = ( 2 )

By formula: (Cl^- CH₄O H₂O) + CH₄O = (Cl^- 2CH₄O H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.8	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	19.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( ) + Methyl Alcohol = ( )

By formula: (Cl^- H₂O) + CH₄O = (Cl^- CH₄O H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.2	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20.9	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( 2) + Methyl Alcohol = ( 2)

By formula: (Cl^- 2H₂O) + CH₄O = (Cl^- CH₄O 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.4	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	18.1	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

+ Methyl Alcohol = ( )

By formula: Co⁺ + CH₄O = (Co⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	35.4 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD

+ Methyl Alcohol = ( )

By formula: Cu⁺ + CH₄O = (Cu⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.4	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.9	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

( Methyl Alcohol ) + = ( 2)

By formula: (Cu⁺ CH₄O) + CH₄O = (Cu⁺ 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.8	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.	cal/mol*K	N/A	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	6.3	kcal/mol	HPMS	El-Shall, Schriver, et al., 1989	gas phase; Entropy change calculated or estimated, Cu+ from laser desorption; M

+ Methyl Alcohol = CH₃D₄FO^-

By formula: F^- + CH₄O = CH₃D₄FO^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	29.8 ± 2.0	kcal/mol	TDEq	Wilkinson, Szulejko, et al., 1992	gas phase; Reported relative to ROH..F-, 0.5 kcal/mol weaker.; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	22.4 ± 2.0	kcal/mol	TDEq	Wilkinson, Szulejko, et al., 1992	gas phase; Reported relative to ROH..F-, 0.5 kcal/mol weaker.; B

+ Methyl Alcohol = ( )

By formula: F^- + CH₄O = (F^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	29.6 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
_rH°	29.4 ± 2.2	kcal/mol	CIDT	DeTuri and Ervin, 1999	gas phase; B
_rH°	23.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.0	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
_rS°	22.6	cal/mol*K	N/A	Larson and McMahon, 1983	gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	22.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1983	gas phase; B,M
_rG°	15.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( Methyl Alcohol ) + = ( 2)

By formula: (F^- CH₄O) + CH₄O = (F^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.30 ± 0.30	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	19.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	12.97	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	12.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 2 Methyl Alcohol ) + = ( 3)

By formula: (F^- 2CH₄O) + CH₄O = (F^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.10 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	14.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.2	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	8.06	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	8.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 3 Methyl Alcohol ) + = ( 4)

By formula: (F^- 3CH₄O) + CH₄O = (F^- 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 4 Methyl Alcohol ) + = ( 5)

By formula: (F^- 4CH₄O) + CH₄O = (F^- 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.9 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.3	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	3.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 5 Methyl Alcohol ) + = ( 6)

By formula: (F^- 5CH₄O) + CH₄O = (F^- 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.6 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 6 Methyl Alcohol ) + = ( 7)

By formula: (F^- 6CH₄O) + CH₄O = (F^- 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.2 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 7 Methyl Alcohol ) + = ( 8)

By formula: (F^- 7CH₄O) + CH₄O = (F^- 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.7 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 8 Methyl Alcohol ) + = ( 9)

By formula: (F^- 8CH₄O) + CH₄O = (F^- 9CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.2 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.7	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 9 Methyl Alcohol ) + = ( 10)

By formula: (F^- 9CH₄O) + CH₄O = (F^- 10CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 10 Methyl Alcohol ) + = ( 11)

By formula: (F^- 10CH₄O) + CH₄O = (F^- 11CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.5	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.0 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 11 Methyl Alcohol ) + = ( 12)

By formula: (F^- 11CH₄O) + CH₄O = (F^- 12CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	8.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

F₆S^- + Methyl Alcohol = (F₆S^- )

By formula: F₆S^- + CH₄O = (F₆S^- CH₄O)

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	308.	PHPMS	Knighton, Zook, et al., 1990	gas phase; M

HS^- + Methyl Alcohol = (HS^- )

By formula: HS^- + CH₄O = (HS^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	11.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

H₄ClO₂^- + Methyl Alcohol + 2 = CH₈ClO₃^-

By formula: H₄ClO₂^- + CH₄O + 2H₂O = CH₈ClO₃^-

Quantity	Value	Units	Method	Reference	Comment
_rH°	10.40 ± 0.20	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rH°	11.40 ± 0.30	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.80	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; B
_rG°	6.00	kcal/mol	TDAs	Evans and Keesee, 1991	gas phase; For solvation by MeOH of core ion; B

+ Methyl Alcohol = ( )

By formula: I^- + CH₄O = (I^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	11.90 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	11.3 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B,M
_rH°	11.2	kcal/mol	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
_rH°	11.	kcal/mol	PHPMS	Caldwell, Masucci, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	17.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
_rS°	17.8	cal/mol*K	PHPMS	Caldwell and Kebarle, 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.76	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	6.0 ± 1.0	kcal/mol	TDAs	Caldwell and Kebarle, 1984	gas phase; B
_rG°	5.7 ± 2.0	kcal/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..I- of Caldwell and Kebarle, 1984; B

( Methyl Alcohol ) + = ( 2)

By formula: (I^- CH₄O) + CH₄O = (I^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.50 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	11.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.6	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	4.25	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	4.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 2 Methyl Alcohol ) + = ( 3)

By formula: (I^- 2CH₄O) + CH₄O = (I^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	7.70 ± 0.60	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rH°	9.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	22.4	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	3.41	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
_rG°	3.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 3 Methyl Alcohol ) + = ( 4)

By formula: (I^- 3CH₄O) + CH₄O = (I^- 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.7 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.8	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	2.3 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 4 Methyl Alcohol ) + = ( 5)

By formula: (I^- 4CH₄O) + CH₄O = (I^- 5CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.1	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 5 Methyl Alcohol ) + = ( 6)

By formula: (I^- 5CH₄O) + CH₄O = (I^- 6CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.4	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.4 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 6 Methyl Alcohol ) + = ( 7)

By formula: (I^- 6CH₄O) + CH₄O = (I^- 7CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.0	cal/mol*K	PHPMS	Hiraoka and Yamabe, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	1.1 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; B

( 7 Methyl Alcohol ) + = ( 8)

By formula: (I^- 7CH₄O) + CH₄O = (I^- 8CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	9.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.	cal/mol*K	N/A	Hiraoka and Yamabe, 1991	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	0.8 ± 2.0	kcal/mol	TDAs	Hiraoka and Yamabe, 1991	gas phase; Entropy estimated.; B

+ Methyl Alcohol = ( )

By formula: K⁺ + CH₄O = (K⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.9	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)H2O; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	31.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)H2O; M

( Methyl Alcohol ) + = ( 2)

By formula: (K⁺ CH₄O) + CH₄O = (K⁺ 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	18.0	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	35.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( 2 Methyl Alcohol ) + = ( 3)

By formula: (K⁺ 2CH₄O) + CH₄O = (K⁺ 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	14.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	28.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( 3 Methyl Alcohol ) + = ( 4)

By formula: (K⁺ 3CH₄O) + CH₄O = (K⁺ 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	29.	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( Methyl Alcohol ) + = ( 2 )

By formula: (K⁺ CH₄O H₂O) + CH₄O = (K⁺ 2CH₄O H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.3	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( 2 Methyl Alcohol ) + = ( 3 )

By formula: (K⁺ 2CH₄O H₂O) + CH₄O = (K⁺ 3CH₄O H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	12.5	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.6	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( ) + Methyl Alcohol = ( )

By formula: (K⁺ H₂O) + CH₄O = (K⁺ CH₄O H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	19.6	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	32.5	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; M

( 2) + Methyl Alcohol = ( 2)

By formula: (K⁺ 2H₂O) + CH₄O = (K⁺ CH₄O 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	16.6	kcal/mol	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)3H2O; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	30.9	cal/mol*K	HPMS	Evans and Keesee, 1991	gas phase; switching reaction,n(K+)3H2O; M

+ Methyl Alcohol = ( )

By formula: Li⁺ + CH₄O = (Li⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	36.8 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
_rH°	38.1	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
_rH°	38.	kcal/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.	cal/mol*K	N/A	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	30.3	kcal/mol	ICR	Woodin and Beauchamp, 1978	gas phase; switching reaction(Li+)H20, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

+ Methyl Alcohol = ( )

By formula: Mg⁺ + CH₄O = (Mg⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	34.7 ± 1.6	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD
_rH°	61. ± 5.	kcal/mol	PDiss	Operti, Tews, et al., 1988	gas phase; M

( Methyl Alcohol ) + = ( 2)

By formula: (Mg⁺ CH₄O) + CH₄O = (Mg⁺ 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	28.8 ± 1.6	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD

( 2 Methyl Alcohol ) + = ( 3)

By formula: (Mg⁺ 2CH₄O) + CH₄O = (Mg⁺ 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	21.9 ± 2.1	kcal/mol	CIDT	Andersen, Muntean, et al., 2000	RCD

+ Methyl Alcohol = ( )

By formula: NO₂^- + CH₄O = (NO₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.40 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.8	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	9.70 ± 0.40	kcal/mol	TDAs	Sieck, 1985	gas phase; B

+ Methyl Alcohol = ( )

By formula: Na⁺ + CH₄O = (Na⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	23.2 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
_rH°	21.9 ± 1.4	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
_rH°	24.0 ± 0.2	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	RCD
_rH°	26.6 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	20500.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	RCD
_rS°	24.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

_rG° (kcal/mol)	T (K)	Method	Reference	Comment
17.3	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( Methyl Alcohol ) + = ( 2)

By formula: (Na⁺ CH₄O) + CH₄O = (Na⁺ 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	20.5 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
_rH°	21.4 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
_rH°	20.5 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
_rH°	20.2 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.7	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( 2 Methyl Alcohol ) + = ( 3)

By formula: (Na⁺ 2CH₄O) + CH₄O = (Na⁺ 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.4 ± 0.4	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	25.1	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( 3 Methyl Alcohol ) + = ( 4)

By formula: (Na⁺ 3CH₄O) + CH₄O = (Na⁺ 4CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	30.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

+ Methyl Alcohol = ( )

By formula: O₂^- + CH₄O = (O₂^- CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	19.10	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	21.9	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	12.50	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( Methyl Alcohol ) + = ( 2)

By formula: (O₂^- CH₄O) + CH₄O = (O₂^- 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	15.50 ± 0.80	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	24.8	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	8.10 ± 0.40	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( 2 Methyl Alcohol ) + = ( 3)

By formula: (O₂^- 2CH₄O) + CH₄O = (O₂^- 3CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	13.50 ± 0.70	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
_rS°	27.9	cal/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rG°	5.20 ± 0.30	kcal/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

+ Methyl Alcohol = ( )

By formula: Pb⁺ + CH₄O = (Pb⁺ CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	23.3 ± 0.2	kcal/mol	HPMS	Guo and Castleman, 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	23.3	cal/mol*K	HPMS	Guo and Castleman, 1990	gas phase; M

( Methyl Alcohol ) + = ( 2)

By formula: (Pb⁺ CH₄O) + CH₄O = (Pb⁺ 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
_rH°	17.2 ± 0.3	kcal/mol	HPMS	Guo and Castleman, 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
_rS°	26.6	cal/mol*K	HPMS	Guo and Castleman, 1990	gas phase; M

References

Go To: Top, Ion clustering data, Notes

Bogdanov, Peschke, et al., 1999
Bogdanov, B.; Peschke, M.; Tonner, D.S.; Szulejko, J.E.; McMahon, T.B., Stepwise solvation of halides by alcohol molecules in the gas phase, Int. J. Mass Spectrom., 1999, 187, 707-725, https://doi.org/10.1016/S1387-3806(98)14180-5 . [all data]

Hiraoka and Yamabe, 1991
Hiraoka, K.; Yamabe, S., Solvation of Halide Ions with CH3OH in the gas Phase, Int. J. Mass Spectrom. Ion Proc., 1991, 109, 133, https://doi.org/10.1016/0168-1176(91)85101-Q . [all data]

Tanabe, Morgon, et al., 1996
Tanabe, F.K.J.; Morgon, N.H.; Riveros, J.M., Relative Bromide and Iodide Affinity of Simple Solvent Molecules Determined by FT-ICR, J. Phys. Chem., 1996, 100, 8, 2862-2866, https://doi.org/10.1021/jp952290p . [all data]

Hiraoka, Mizure, et al., 1988
Hiraoka, K.; Mizure, S.; Yamabe, S.; Nakatsuji, Y., Gas Phase Clustering Reactions of CN^- and CH₂CN^- with MeCN, Chem. Phys. Lett., 1988, 148, 6, 497, https://doi.org/10.1016/0009-2614(88)80320-8 . [all data]

Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W., Relative acidities of water and methanol, and the stabilities of the dimer adducts, J. Phys. Chem., 1986, 90, 6687. [all data]

Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W., The ionic hydrogen bond and ion solvation. 5. OH...O^- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions, J. Am. Chem. Soc., 1986, 108, 7525. [all data]

Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P., Thermodynamics of the Association Reactions OH- - H2O = HOHOH- and CH3O- - CH3OH = CH3OHOCH3- in the Gas Phase, J. Phys. Chem., 1990, 94, 12, 5184, https://doi.org/10.1021/j100375a076 . [all data]

Caldwell, Rozeboom, et al., 1984
Caldwell, G.; Rozeboom, M.D.; Kiplinger, J.P.; Bartmess, J.E., Anion-alcohol hydrogen bond strengths in the gas phase, J. Am. Chem. Soc., 1984, 106, 4660. [all data]

Moylan, Dodd, et al., 1985
Moylan, C.R.; Dodd, J.A.; Brauman, J.I., Electron photodetachment spectroscopy of Sslvated anions. A probe of structure and energetics, Chem. Phys. Lett., 1985, 118, 38. [all data]

Meot-Ner(Mautner), 1986
Meot-Ner(Mautner), M., Comparative Stabilities of Cationic and Anionic Hydrogen-Bonded Networks. Mixed Clusters of Water-Methanol, J. Am. Chem. Soc., 1986, 108, 20, 6189, https://doi.org/10.1021/ja00280a014 . [all data]

Mustanir, Matsuoka, et al., 2006
Mustanir; Matsuoka, M.; Mishima, M.; Koch, H., Stability of complexes of phenylacetylides and benzyl alkoxides with methanol in the gas phase. Acid-base correlation in the ionic hydrogen-bond strength, Bull. Chem. Soc. Japan, 2006, 79, 7, 1118-1125, https://doi.org/10.1246/bcsj.79.1118 . [all data]

MacKay and Bohme, 1978
MacKay, G.I.; Bohme, D.K., Proton-Transfer Reactions in Nitromethane at 297K, Int. J. Mass Spectrom. Ion Phys., 1978, 26, 4, 327, https://doi.org/10.1016/0020-7381(78)80052-7 . [all data]

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Szulejko, J.; McMahon, T.B., personal communication, 1992. [all data]

Grimsrud and Kebarle, 1973
Grimsrud, E.P.; Kebarle, P., Gas Phase Ion Equilibria Studies of the Solvation of the Hydrogen Ion by Methanol, Dimethyl Ether and Water. Effect of Hydrogen Bonding, J. Am. Chem. Soc., 1973, 95, 24, 7939, https://doi.org/10.1021/ja00805a002 . [all data]

Larson and McMahon, 1982
Larson, J.W.; McMahon, T.B., Formation, Thermochemistry, and Relative Stabilities of Proton - Bound dimers of Oxygen n - Donor Bases from Ion Cyclotron Resonance Solvent - Exchange Equilibria Measurements, J. Am. Chem. Soc., 1982, 104, 23, 6255, https://doi.org/10.1021/ja00387a016 . [all data]

Lias, Liebman, et al., 1984
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Meot-Ner, (Mautner)M., The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects, J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015 . [all data]

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Larson, J.W.; Szulejko, J.E.; McMahon, T.B., Gas Phase Lewis Acid-Base Interactions. An Experimental Determination of Cyanide Binding Energies From Ion Cyclotron Resonance and High-Pressure Mass Spectrometric Equilibrium Measurements., J. Am. Chem. Soc., 1988, 110, 23, 7604, https://doi.org/10.1021/ja00231a004 . [all data]

Meot-ner, 1988
Meot-ner, M., Ionic Hydrogen Bond and Ion Solvation. ₆. Interaction Energies of the Acetate Ion with Organic Molecules. Comparison of CH₃COO^- with Cl^-, CN^-, and SH^-, J. Am. Chem. Soc., 1988, 110, 12, 3854, https://doi.org/10.1021/ja00220a022 . [all data]

Larson and McMahon, 1987
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Notes

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Symbols used in this document:

T Temperature

_rG° Free energy of reaction at standard conditions

_rH° Enthalpy of reaction at standard conditions

_rS° Entropy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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T	Temperature
_rG°	Free energy of reaction at standard conditions
_rH°	Enthalpy of reaction at standard conditions
_rS°	Entropy of reaction at standard conditions