Sodium ion (1+)

Formula: Na⁺
Molecular weight: 22.98922070
IUPAC Standard InChI: InChI=1S/Na/q+1
IUPAC Standard InChIKey: FKNQFGJONOIPTF-UHFFFAOYSA-N
CAS Registry Number: 17341-25-2
Chemical structure:
This structure is also available as a 2d Mol file
Other names: Sodium cation
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Other data available:
- Gas phase thermochemistry data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 248
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Ion clustering data

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

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + Ar = (Na⁺ • Ar)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	3.7 ± 2.1	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	3.70	kcal/mol	SCATTERING	Gislason, 1984	gas phase; M
Δ_rH°	4.39	kcal/mol	IMob	Viehland, 1984	gas phase; M
Δ_rH°	4.4	kcal/mol	DT	McKnight and Sawina, 1973	gas phase; M
Δ_rH°	4.87	kcal/mol	IMob	Takebe, 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CH₂N₄ = (Na⁺ • CH₂N₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.5 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CH₄O = (Na⁺ • CH₄O)

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

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

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

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

( Sodium ion (1+) • 2) + = ( • 3)

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

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

( Sodium ion (1+) • 3) + = ( • 4)

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

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CH₄ = (Na⁺ • CH₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.2	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	14.1	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CH₅N = (Na⁺ • CH₅N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.3 ± 0.2	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rH°	32.1	kcal/mol	HPMS	Guo and Castleman, 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22600.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rS°	30.3	cal/mol*K	HPMS	Guo and Castleman, 1990	gas phase; M

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CO = (Na⁺ • CO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.6 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	7.6 ± 1.9	kcal/mol	CIDT	Walter, Sievers, et al., 1998	RCD
Δ_rH°	12.6	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.4	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • CO) + CO = (Na⁺ • 2CO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	5.7 ± 0.7	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	5.7 ± 0.7	kcal/mol	CIDT	Walter, Sievers, et al., 1998	RCD
Δ_rH°	7.5	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	15.1	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + CO₂ = (Na⁺ • CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.9	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Δ_rH°	13.7	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.1	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Δ_rS°	19.8	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.6	310.	DT	Keller and Beyer, 1971	gas phase; low E/N; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • CO₂) + CO₂ = (Na⁺ • 2CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	11.0	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.7	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.8	310.	DT	Keller and Beyer, 1971	gas phase; low E/N; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2CO₂) + CO₂ = (Na⁺ • 3CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.7	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3CO₂) + CO₂ = (Na⁺ • 4CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.4	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.7	310.	HPMS	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M

( Sodium ion (1+) • ) + = ( • • )

By formula: (Na⁺ • CO₂) + H₂O = (Na⁺ • H₂O • CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.7	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Δ_rH°	22.9	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; From thermochemical cycle(Na+) 2H2O; Dzidic and Kebarle, 1970, Peterson, Mark, et al., 1984; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.3	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Δ_rS°	25.6	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; From thermochemical cycle(Na+) 2H2O; Dzidic and Kebarle, 1970, Peterson, Mark, et al., 1984; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₃N = (Na⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.5 ± 1.1	kcal/mol	CIDT	Valina, 2001	RCD

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₂H₃N) + C₂H₃N = (Na⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.1 ± 1.9	kcal/mol	CIDT	Valina, 2001	RCD
Δ_rH°	24.4	kcal/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.7	cal/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2C₂H₃N) + C₂H₃N = (Na⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.2 ± 0.7	kcal/mol	CIDT	Valina, 2001	RCD
Δ_rH°	20.6	kcal/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.5	cal/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3C₂H₃N) + C₂H₃N = (Na⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.4 ± 0.6	kcal/mol	CIDT	Valina, 2001	RCD
Δ_rH°	14.9	kcal/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.9	cal/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( Sodium ion (1+) • 4) + = ( • 5)

By formula: (Na⁺ • 4C₂H₃N) + C₂H₃N = (Na⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.6 ± 0.8	kcal/mol	CIDT	Valina, 2001	CH3CN is fifth ligand; RCD
Δ_rH°	12.7	kcal/mol	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	41.2	cal/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M

Sodium ion (1+) + C₂H₃N₃ = ( • C₂H₃N₃)

By formula: Na⁺ + C₂H₃N₃ = (Na⁺ • C₂H₃N₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22.9 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₃N₃ = (Na⁺ • C₂H₃N₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22.9 ± 1.1	kcal/mol	CIDT	Rodgers and Armentrout, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₃N₃ = (Na⁺ • C₂H₃N₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.6 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₃N₃ = (Na⁺ • C₂H₃N₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.7 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₄O = (Na⁺ • C₂H₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.1 ± 0.8	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₄ = (Na⁺ • C₂H₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.3 ± 1.1	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₅FO = (Na⁺ • C₂H₅FO)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₅NO = (Na⁺ • C₂H₅NO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	34.7	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₅NO₂ = (Na⁺ • C₂H₅NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.5 ± 1.9	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD
Δ_rH°	39.2 ± 1.4	kcal/mol	CIDT	Moision and Armentrout, 2002	RCD
Δ_rH°	36.6	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₆N₂O = (Na⁺ • C₂H₆N₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₆OS = (Na⁺ • C₂H₆OS)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.1	kcal/mol	CID	Klassen, Anderson, et al., 1996	RCD

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₆O = (Na⁺ • C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.3 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	24.4 ± 0.9	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	24.4 ± 0.9	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
19.0	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD
0.0	0.	CIDT	Rodgers and Armentrout, 1999, 2	RCD

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₂H₆O) + C₂H₆O = (Na⁺ • 2C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	23.7 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	23.1 ± 1.1	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	23.7 ± 1.6	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	23.3 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₆O = (Na⁺ • C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.0 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.9 ± 1.1	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	22.0 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	22.2 ± 1.2	kcal/mol	CIDT	More, Ray, et al., 1997	RCD

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₂H₆O) + C₂H₆O = (Na⁺ • 2C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20. ± 2.	kcal/mol	AVG	N/A	Average of 7 values; Individual data points

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2C₂H₆O) + C₂H₆O = (Na⁺ • 3C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.7 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	16.0 ± 1.2	kcal/mol	CIDT	More, Ray, et al., 1997	RCD

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3C₂H₆O) + C₂H₆O = (Na⁺ • 4C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.6 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	13.9 ± 1.0	kcal/mol	CIDT	More, Ray, et al., 1997	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₆S = (Na⁺ • C₂H₆S)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₇NO = (Na⁺ • C₂H₇NO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.8 ± 1.7	kcal/mol	CIDT	Moision and Armentrout, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₂H₇N = (Na⁺ • C₂H₇N)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₃N₃ = (Na⁺ • C₃H₃N₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.1 ± 0.7	kcal/mol	CIDT	Amunugama and Rodgers, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₄N₂ = (Na⁺ • C₃H₄N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.6 ± 2.2	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₄N₂ = (Na⁺ • C₃H₄N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	33.4 ± 1.2	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD
Δ_rH°	33.4 ± 1.3	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	33.4 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₅N = (Na⁺ • C₃H₅N)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₆O = (Na⁺ • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.2 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	30.8 ± 0.5	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rH°	24.4	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD
Δ_rH°	33.4 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21000.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	See 96KLA/AND?; RCD
Δ_rS°	26.1	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₃H₆O) + C₃H₆O = (Na⁺ • 2C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.2 ± 0.1	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.6	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2C₃H₆O) + C₃H₆O = (Na⁺ • 3C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	30.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3C₃H₆O) + C₃H₆O = (Na⁺ • 4C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7 ± 0.2	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.3	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₆O₂ = (Na⁺ • C₃H₆O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.2 ± 1.4	kcal/mol	CIDT	Moision and Armentrout, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₆O₂ = (Na⁺ • C₃H₆O₂)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₇NO = (Na⁺ • C₃H₇NO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37.4 ± 0.9	kcal/mol	CIDT	Armentrout and Rodgers, 2000	See 96KLA/AND?; RCD

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₇NO = (Na⁺ • C₃H₇NO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.7	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₇NO₂S = (Na⁺ • C₃H₇NO₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.8 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.2; RCD
Δ_rH°	41.8	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₇NO₂ = (Na⁺ • C₃H₇NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40.4 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.0; RCD
Δ_rH°	39.9	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₇NO₃ = (Na⁺ • C₃H₇NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.9 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.4; RCD
Δ_rH°	45.9	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₈O = (Na⁺ • C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.0 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	27.1 ± 1.1	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
20.4	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD
0.0	0.	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₈O = (Na⁺ • C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.8 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	25.8 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₉N = (Na⁺ • C₃H₉N)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₃H₉N = (Na⁺ • C₃H₉N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.9 ± 1.4	kcal/mol	CIDT	Moision and Armentrout, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₄N₂O₂ = (Na⁺ • C₄H₄N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.2 ± 0.8	kcal/mol	CIDT	Rodgers and Armentrout, 2000, 2	RCD
Δ_rH°	33.7	kcal/mol	CIDC	Cerda and Wesdemiotis, 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₄N₂ = (Na⁺ • C₄H₄N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.7 ± 0.8	kcal/mol	CIDT	Amunugama and Rodgers, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₄O = (Na⁺ • C₄H₄O)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₅N = (Na⁺ • C₄H₅N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.3 ± 1.1	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₅N₃O = (Na⁺ • C₄H₅N₃O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.3	kcal/mol	CIDC	Cerda and Wesdemiotis, 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₆N₂O₂ = (Na⁺ • C₄H₆N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	34.2 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₆N₂ = (Na⁺ • C₄H₆N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.4 ± 1.2	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₆N₂ = (Na⁺ • C₄H₆N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.4 ± 0.7	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₆O₃ = (Na⁺ • C₄H₆O₃)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₆ = (Na⁺ • C₄H₆)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₇NO₃ = (Na⁺ • C₄H₇NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.1 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
30.8	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₇NO₄ = (Na⁺ • C₄H₇NO₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.5	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈N₂O₂ = (Na⁺ • C₄H₈N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.5	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈N₂O₃ = (Na⁺ • C₄H₈N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.2	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈N₂O₃ = (Na⁺ • C₄H₈N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.3 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	See amide; RCD
Δ_rH°	42.9	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.2	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈O = (Na⁺ • C₄H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.3 ± 1.7	kcal/mol	CIDT	Moision and Armentrout, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈O₂ = (Na⁺ • C₄H₈O₂)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₈ = (Na⁺ • C₄H₈)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉Br = (Na⁺ • C₄H₉Br)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉Br = (Na⁺ • C₄H₉Br)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉Cl = (Na⁺ • C₄H₉Cl)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉NO = (Na⁺ • C₄H₉NO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37.5	kcal/mol	CIDT	Klassen, Anderson, et al., 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉NO₂ = (Na⁺ • C₄H₉NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.0 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.7; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₉NO₃ = (Na⁺ • C₄H₉NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.1	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O = (Na⁺ • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.0 ± 0.3	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.2	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₄H₁₀O) + C₄H₁₀O = (Na⁺ • 2C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22.9 ± 0.3	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	28.0	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2C₄H₁₀O) + C₄H₁₀O = (Na⁺ • 3C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.4 ± 0.3	kcal/mol	HPMS	Guo, Conklin, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.5	cal/mol*K	HPMS	Guo, Conklin, et al., 1989	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O = (Na⁺ • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.1 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O = (Na⁺ • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.0 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	27.8 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O = (Na⁺ • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	25.1 ± 1.4	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	25.1 ± 1.4	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O = (Na⁺ • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	28.0 ± 1.2	kcal/mol	CIDT	Rodgers and Armentrout, 1999, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₄H₁₀O₂ = (Na⁺ • C₄H₁₀O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37.8 ± 1.0	kcal/mol	CIDT	Armentrout and Rodgers, 2000	glyme; RCD
Δ_rH°	57.6 ± 4.3	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	38.5 ± 1.0	kcal/mol	CIDT	More, Ray, et al., 1997	RCD
Δ_rH°	47.2	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	34.6	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₄H₁₀O₂) + C₄H₁₀O₂ = (Na⁺ • 2C₄H₁₀O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.7 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	27.2 ± 2.0	kcal/mol	CIDT	More, Ray, et al., 1997	RCD
Δ_rH°	35.1	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	40.5	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2C₄H₁₀O₂) + C₄H₁₀O₂ = (Na⁺ • 3C₄H₁₀O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	23.2	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	42.2	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₅N = (Na⁺ • C₅H₅N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.3 ± 0.7	kcal/mol	CIDT	Amunugama and Rodgers, 2000	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₅N₅O = (Na⁺ • C₅H₅N₅O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	43.5	kcal/mol	CIDC	Cerda and Wesdemiotis, 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₅N₅ = (Na⁺ • C₅H₅N₅)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	33.4 ± 1.0	kcal/mol	CIDT	Rodgers and Armentrout, 2000, 2	RCD
Δ_rH°	41.1	kcal/mol	CIDC	Cerda and Wesdemiotis, 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₆N₂O₂ = (Na⁺ • C₅H₆N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.3 ± 0.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000, 2	RCD
Δ_rH°	34.4	kcal/mol	CIDC	Cerda and Wesdemiotis, 1996	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₆N₂ = (Na⁺ • C₅H₆N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.5 ± 0.9	kcal/mol	CIDT	Rodgers, 2001	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₆N₂ = (Na⁺ • C₅H₆N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.0 ± 1.1	kcal/mol	CIDT	Rodgers, 2001	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₆N₂ = (Na⁺ • C₅H₆N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.0 ± 1.4	kcal/mol	CIDT	Rodgers, 2001	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₆O = (Na⁺ • C₅H₆O)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₇N = (Na⁺ • C₅H₇N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.6 ± 0.8	kcal/mol	CIDT	Huang and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₈N₂O₂ = (Na⁺ • C₅H₈N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.6 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₈O = (Na⁺ • C₅H₈O)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₉NO₂ = (Na⁺ • C₅H₉NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.8 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.3; RCD
Δ_rH°	46.8	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₉NO₃S = (Na⁺ • C₅H₉NO₃S)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
30.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₉NO₃ = (Na⁺ • C₅H₉NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
32.1	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₉NO₄ = (Na⁺ • C₅H₉NO₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.7	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₉NO₄ = (Na⁺ • C₅H₉NO₄)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
33.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + C₅H₁₀N₂O₃S = ( • C₅H₁₀N₂O₃S)

By formula: Na⁺ + C₅H₁₀N₂O₃S = (Na⁺ • C₅H₁₀N₂O₃S)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.3	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀N₂O₃ = (Na⁺ • C₅H₁₀N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	50.6	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀N₂O₃ = (Na⁺ • C₅H₁₀N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.8 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀N₂O₃ = (Na⁺ • C₅H₁₀N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.5 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀N₂O₃ = (Na⁺ • C₅H₁₀N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
35.5	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀N₂O₄ = (Na⁺ • C₅H₁₀N₂O₄)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
37.4	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀O = (Na⁺ • C₅H₁₀O)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀O₅ = (Na⁺ • C₅H₁₀O₅)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.1	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀O₅ = (Na⁺ • C₅H₁₀O₅)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40.6	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₀O₅ = (Na⁺ • C₅H₁₀O₅)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40.9	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₁NO₂ = (Na⁺ • C₅H₁₁NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.3 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.1; RCD
Δ_rH°	41.3	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₅H₁₂O₂ = (Na⁺ • C₅H₁₂O₂)

Free energy of reaction

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

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₅F = (Na⁺ • C₆H₅F)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.7 ± 0.8	kcal/mol	CIDT	Amunugama and Rodgers, 2002	RCD

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₆H₅F) + C₆H₅F = (Na⁺ • 2C₆H₅F)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.7 ± 0.9	kcal/mol	CIDT	Amunugama and Rodgers, 2002	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₆O = (Na⁺ • C₆H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.4 ± 0.8	kcal/mol	CIDT	Amunugama and Rodgers, 2002, 2	RCD
Δ_rH°	23.5 ± 0.8	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₆H₆O) + C₆H₆O = (Na⁺ • 2C₆H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.5 ± 0.8	kcal/mol	CIDT	Amunugama and Rodgers, 2002, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₆ = (Na⁺ • C₆H₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22.8 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	21.1 ± 1.2	kcal/mol	CIDT	Amicangelo and Armentrout, 2000	RCD
Δ_rH°	21.1 ± 1.1	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	28.0	kcal/mol	HPMS	Guo, Purnell, et al., 1990	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	31.2	cal/mol*K	HPMS	Guo, Purnell, et al., 1990	gas phase; M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₆H₆) + C₆H₆ = (Na⁺ • 2C₆H₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20. ± 1.	kcal/mol	AVG	N/A	Average of 7 values; Individual data points

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₇N = (Na⁺ • C₆H₇N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.9 ± 0.9	kcal/mol	CIDT	Rodgers, 2001, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₇N = (Na⁺ • C₆H₇N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.8 ± 1.0	kcal/mol	CIDT	Rodgers, 2001, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₇N = (Na⁺ • C₆H₇N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.6 ± 1.1	kcal/mol	CIDT	Rodgers, 2001, 2	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₉NO₅ = (Na⁺ • C₆H₉NO₅)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₉N₃O₂ = (Na⁺ • C₆H₉N₃O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.3	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₀N₂O₂ = (Na⁺ • C₆H₁₀N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36.1 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₀N₂O₅ = (Na⁺ • C₆H₁₀N₂O₅)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
38.5	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₂N₂O₃ = (Na⁺ • C₆H₁₂N₂O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	43.0 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₂N₂O₄ = (Na⁺ • C₆H₁₂N₂O₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	43.2 ± 1.7	kcal/mol	CIDC	Cerda, Hoyau, et al., 1998	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₂N₂O₄ = (Na⁺ • C₆H₁₂N₂O₄)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
38.6	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₂O₆ = (Na⁺ • C₆H₁₂O₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.6	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₂O₆ = (Na⁺ • C₆H₁₂O₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.8	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + C₆H₁₂O₆ = ( • C₆H₁₂O₆)

By formula: Na⁺ + C₆H₁₂O₆ = (Na⁺ • C₆H₁₂O₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.3	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₃NO₂ = (Na⁺ • C₆H₁₃NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.8	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₃NO₂ = (Na⁺ • C₆H₁₃NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.0	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₃NO₂ = (Na⁺ • C₆H₁₃NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.8 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.8; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₄N₂O₂ = (Na⁺ • C₆H₁₄N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	>50.9	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₆H₁₄N₄O₂ = (Na⁺ • C₆H₁₄N₄O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	>53.7	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₈O = (Na⁺ • C₇H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	27.1 ± 2.0	kcal/mol	CIDT	Amunugama and Rodgers, 2003	RCD

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₇H₈O) + C₇H₈O = (Na⁺ • 2C₇H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.4 ± 0.6	kcal/mol	CIDT	Amunugama and Rodgers, 2003	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₈ = (Na⁺ • C₇H₈)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.8 ± 0.8	kcal/mol	CIDT	Amunugama and Rodgers, 2002, 3	RCD

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • C₇H₈) + C₇H₈ = (Na⁺ • 2C₇H₈)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.7 ± 0.5	kcal/mol	CIDT	Amunugama and Rodgers, 2002, 3	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₀NO₃ = (Na⁺ • C₇H₁₀NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
35.2	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₁NO₅ = (Na⁺ • C₇H₁₁NO₅)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
37.0	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₂N₂O₃ = (Na⁺ • C₇H₁₂N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
38.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₂N₂O₅ = (Na⁺ • C₇H₁₂N₂O₅)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
40.7	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₃NO₃S = (Na⁺ • C₇H₁₃NO₃S)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.3	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₃NO₃ = (Na⁺ • C₇H₁₃NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
33.5	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + C₇H₁₄N₂O₃S = ( • C₇H₁₄N₂O₃S)

By formula: Na⁺ + C₇H₁₄N₂O₃S = (Na⁺ • C₇H₁₄N₂O₃S)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
37.4	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₇H₁₄N₂O₃ = (Na⁺ • C₇H₁₄N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
36.7	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₈H₁₅NO₃ = (Na⁺ • C₈H₁₅NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
33.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₈H₁₆N₂O₃ = (Na⁺ • C₈H₁₆N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
36.9	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₈H₁₆O₄ = (Na⁺ • C₈H₁₆O₄)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	89. ± 12.	kcal/mol	CIDT	More, Ray, et al., 1997	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₉H₁₁NO₂ = (Na⁺ • C₉H₁₁NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.3 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.5; RCD
Δ_rH°	47.3	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₉H₁₁NO₃ = (Na⁺ • C₉H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.0	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₀H₂₀O₅ = (Na⁺ • C₁₀H₂₀O₅)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	70.3 ± 4.3	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	71.2 ± 4.3	kcal/mol	CIDT	More, Ray, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₁H₁₂N₂O₂ = (Na⁺ • C₁₁H₁₂N₂O₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.0 ± 3.0	kcal/mol	IMRE	Gapeev and Dunbar, 2003	Anchor glycine=38.5+-2.6; RCD
Δ_rH°	50.2	kcal/mol	CIDC	Kish, Ohanessian, et al., 2003	Anchor alanine=39.89; RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₁H₁₃NO₃ = (Na⁺ • C₁₁H₁₃NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.8	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₁H₁₃NO₄ = (Na⁺ • C₁₁H₁₃NO₄)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
34.6	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₁H₁₄N₂O₃ = (Na⁺ • C₁₁H₁₄N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
38.1	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₁H₁₄N₂O₄ = (Na⁺ • C₁₁H₁₄N₂O₄)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
38.0	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₂H₂₂O₁₁ = (Na⁺ • C₁₂H₂₂O₁₁)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.8	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₂H₂₂O₁₁ = (Na⁺ • C₁₂H₂₂O₁₁)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.0	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + C₁₂H₂₂O₁₁ = ( • C₁₂H₂₂O₁₁)

By formula: Na⁺ + C₁₂H₂₂O₁₁ = (Na⁺ • C₁₂H₂₂O₁₁)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.3	kcal/mol	CIDC	Cerda and Wesdemiotis, 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	298.	CIDC	Cerda and Wesdemiotis, 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₂H₂₄O₆ = (Na⁺ • C₁₂H₂₄O₆)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	70.7 ± 4.5	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	71.7 ± 4.5	kcal/mol	CIDT	More, Ray, et al., 1999	RCD

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.0	0.	CIDT	Rodgers and Armentrout, 2000	RCD
0.0	298.	CIDT	More, Ray, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₃H₁₄NO₃ = (Na⁺ • C₁₃H₁₄NO₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
37.4	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + C₁₃H₁₅N₂O₃ = (Na⁺ • C₁₃H₁₅N₂O₃)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
41.2	0.	CIDC	Feng, Gronert, et al., 1999	RCD

Sodium ion (1+) + = ( • )

By formula: Na⁺ + ClNa = (Na⁺ • ClNa)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.4	kcal/mol	MS	Chupka, 1959	gas phase; Knudsen cell; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.6	cal/mol*K	MS	Chupka, 1959	gas phase; Knudsen cell; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + FNa = (Na⁺ • FNa)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	62.7	kcal/mol	MS	Tsirlina, Gusarov, et al., 1986	gas phase; Knudsen cell; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • FNa) + FNa = (Na⁺ • 2FNa)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.	kcal/mol	MS	Tsirlina, Gusarov, et al., 1986	gas phase; Knudsen cell; M

Sodium ion (1+) + F₃Sc = ( • F₃Sc)

By formula: Na⁺ + F₃Sc = (Na⁺ • F₃Sc)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	33.	kcal/mol	MS	Tsirlina, Gusarov, et al., 1986	gas phase; Knudsen cell; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + HCl = (Na⁺ • HCl)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.2	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.4	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + HNO₃ = (Na⁺ • HNO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.6	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.3	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + H₂O = (Na⁺ • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.0	kcal/mol	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Δ_rH°	21.0 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	19.6 ± 1.4	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	22.7 ± 1.9	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	26.5	kcal/mol	MS	Burdett and Hayhurst, 1982	gas phase; flame source, 1600 K; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21.5	cal/mol*K	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Δ_rS°	22.	cal/mol*K	MS	Burdett and Hayhurst, 1982	gas phase; flame source, 1600 K; M

Enthalpy of reaction

Δ_rH° (kcal/mol)	T (K)	Method	Reference	Comment
22.6 (+1.8,-0.)		CID	Dalleska, Tjelta, et al., 1994	gas phase; guided ion beam CID, Na+ (3s0); M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • • )

By formula: (Na⁺ • H₂O) + CO₂ = (Na⁺ • CO₂ • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.6	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.5	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; M

( Sodium ion (1+) • 2) + = ( • • 2)

By formula: (Na⁺ • 2H₂O) + CO₂ = (Na⁺ • CO₂ • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.3	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.9	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; M

( Sodium ion (1+) • 3) + = ( • • 3)

By formula: (Na⁺ • 3H₂O) + CO₂ = (Na⁺ • CO₂ • 3H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.2	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.	cal/mol*K	N/A	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	-0.3	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; Entropy change calculated or estimated; M

( Sodium ion (1+) • • ) + = ( • 2 • )

By formula: (Na⁺ • H₂O • CO₂) + H₂O = (Na⁺ • 2H₂O • CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.4	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.6	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M

( Sodium ion (1+) • 2 • ) + = ( • 3 • )

By formula: (Na⁺ • 2H₂O • CO₂) + H₂O = (Na⁺ • 3H₂O • CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.4	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	23.	cal/mol*K	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.5	kcal/mol	HPMS	Peterson, Mark, et al., 1984	gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • H₂O) + H₂O = (Na⁺ • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19. ± 2.	kcal/mol	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	22.2	cal/mol*K	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Δ_rS°	23.	cal/mol*K	N/A	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M

Enthalpy of reaction

Δ_rH° (kcal/mol)	T (K)	Method	Reference	Comment
19.6 (+1.4,-0.)		CID	Dalleska, Tjelta, et al., 1994	gas phase; guided ion beam CID, Na+ (3s0); M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
10.0	300.	HPMS	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2H₂O) + H₂O = (Na⁺ • 3H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.9	kcal/mol	HPMS	Tang, Lian, et al., 1976	gas phase; M
Δ_rH°	15.8	kcal/mol	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Δ_rH°	16.7 ± 1.4	kcal/mol	CIDT	Rodgers and Armentrout, 2000	RCD
Δ_rH°	16.1	kcal/mol	ES/HPMS	Blades, Klassen, et al., 1996	gas phase; M
Δ_rH°	16. ± 3.	kcal/mol	HPMS	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.8	cal/mol*K	HPMS	Tang, Lian, et al., 1976	gas phase; M
Δ_rS°	21.9	cal/mol*K	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Δ_rS°	22.0	cal/mol*K	ES/HPMS	Blades, Klassen, et al., 1996	gas phase; M
Δ_rS°	23.	cal/mol*K	N/A	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	9.5	kcal/mol	ES/HPMS	Blades, Klassen, et al., 1996	gas phase; M

Enthalpy of reaction

Δ_rH° (kcal/mol)	T (K)	Method	Reference	Comment
16.8 (+1.4,-0.)		CID	Dalleska, Tjelta, et al., 1994	gas phase; guided ion beam CID, Na+ (3s0); M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
9.4	300.	HPMS	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3H₂O) + H₂O = (Na⁺ • 4H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.1 ± 0.9	kcal/mol	AVG	N/A	Average of 7 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24. ± 3.	cal/mol*K	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.1	kcal/mol	ES/HPMS	Blades, Klassen, et al., 1996	gas phase; M

Enthalpy of reaction

Δ_rH° (kcal/mol)	T (K)	Method	Reference	Comment
13.1 (+1.4,-0.)		CID	Dalleska, Tjelta, et al., 1994	gas phase; guided ion beam CID, Na+ (3s0); M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.6	293.	ES/HPMS	Klassen, Blades, et al., 1995	gas phase; M
6.4	300.	HPMS	Blades, Jayaweera, et al., 1990	gas phase; electrospray, Entropy change calculated or estimated; M

( Sodium ion (1+) • 4) + = ( • 5)

By formula: (Na⁺ • 4H₂O) + H₂O = (Na⁺ • 5H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.7	kcal/mol	HPMS	Tang, Lian, et al., 1976	gas phase; M
Δ_rH°	11.6	kcal/mol	HPMS	Tang and Castleman, 1972	gas phase; M
Δ_rH°	12.3	kcal/mol	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.9	cal/mol*K	HPMS	Tang, Lian, et al., 1976	gas phase; M
Δ_rS°	26.5	cal/mol*K	HPMS	Tang and Castleman, 1972	gas phase; M
Δ_rS°	28.1	cal/mol*K	HPMS	Dzidic and Kebarle, 1970	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.7	293.	ES/HPMS	Klassen, Blades, et al., 1995	gas phase; M

( Sodium ion (1+) • 5) + = ( • 6)

By formula: (Na⁺ • 5H₂O) + H₂O = (Na⁺ • 6H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.7	kcal/mol	HPMS	Dzidic and Kebarle, 1970	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.0	cal/mol*K	HPMS	Dzidic and Kebarle, 1970	gas phase; M

( Sodium ion (1+) • ) + = ( • • )

By formula: (Na⁺ • H₂O) + O₂S = (Na⁺ • O₂S • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.1	kcal/mol	HPMS	Upschulte, Schelling, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	17.4	cal/mol*K	HPMS	Upschulte, Schelling, et al., 1984	gas phase; M

( Sodium ion (1+) • 3) + = ( • • 3)

By formula: (Na⁺ • 3H₂O) + O₂S = (Na⁺ • O₂S • 3H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.8	kcal/mol	HPMS	Banic and Iribarne, 1985	gas phase; electric fields; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + H₂ = (Na⁺ • H₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	2.93	kcal/mol	SIDT	Bushnell, Kemper, et al., 1994	gas phase; Δ_rH(0K) = 2.45 kcal/mol; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	13.2	cal/mol*K	SIDT	Bushnell, Kemper, et al., 1994	gas phase; Δ_rH(0K) = 2.45 kcal/mol; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • H₂) + H₂ = (Na⁺ • 2H₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	2.41	kcal/mol	SIDT	Bushnell, Kemper, et al., 1994	gas phase; Δ_rH(0K) = 2.25 kcal/mol; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	12.4	cal/mol*K	SIDT	Bushnell, Kemper, et al., 1994	gas phase; Δ_rH(0K) = 2.25 kcal/mol; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + H₃N = (Na⁺ • H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	24.4 ± 1.3	kcal/mol	CIDC	Amicangelo and Armentrout, 2001	Anchor NH3=24.41; RCD
Δ_rH°	24.4 ± 1.3	kcal/mol	CIDT	Armentrout and Rodgers, 2000	RCD
Δ_rH°	25.6 ± 0.2	kcal/mol	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rH°	29.1	kcal/mol	HPMS	Castleman, Holland, et al., 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	21800.	cal/mol*K	HPMS	Hoyau, Norrman, et al., 1999	RCD
Δ_rS°	25.7	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

Free energy of reaction

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

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • H₃N) + H₃N = (Na⁺ • 2H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	22. ± 1.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.1	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2H₃N) + H₃N = (Na⁺ • 3H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.1	kcal/mol	HPMS	Castleman, Holland, et al., 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	24.0	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3H₃N) + H₃N = (Na⁺ • 4H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.7	kcal/mol	HPMS	Castleman, Holland, et al., 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.0	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

( Sodium ion (1+) • 4) + = ( • 5)

By formula: (Na⁺ • 4H₃N) + H₃N = (Na⁺ • 5H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.7	kcal/mol	HPMS	Castleman, Holland, et al., 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.8	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

( Sodium ion (1+) • 5) + = ( • 6)

By formula: (Na⁺ • 5H₃N) + H₃N = (Na⁺ • 6H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	9.7	kcal/mol	HPMS	Castleman, Holland, et al., 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	29.7	cal/mol*K	HPMS	Castleman, Holland, et al., 1978	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + He = (Na⁺ • He)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	1.19	kcal/mol	SCATTERING	Gislason, 1984	gas phase; M
Δ_rH°	0.79	kcal/mol	IMob	Viehland, 1984	gas phase; M
Δ_rH°	0.93	kcal/mol	IMob	Mason and Sharp, 1958	gas phase; M
Δ_rH°	1.38	kcal/mol	IMob	Takebe, 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + Kr = (Na⁺ • Kr)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	4.84	kcal/mol	SCATTERING	Gislason, 1984	gas phase; M
Δ_rH°	5.08	kcal/mol	IMob	Viehland, 1984	gas phase; M
Δ_rH°	5.8	kcal/mol	DT	McKnight and Sawina, 1973	gas phase; M
Δ_rH°	6.57	kcal/mol	IMob	Takebe, 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	18.5	cal/mol*K	DT	McKnight and Sawina, 1973	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + N₂ = (Na⁺ • N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.0	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	18.6	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
2.2	310.	FA	Perry, Rowe, et al., 1980	gas phase; M
2.0	310.	DT	Beyer and Keller, 1971	gas phase; low E/N; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • N₂) + N₂ = (Na⁺ • 2N₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	5.3	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	16.8	cal/mol*K	FA	Perry, Rowe, et al., 1980	gas phase; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
-0.3	310.	FA	Perry, Rowe, et al., 1980	gas phase; M

( Sodium ion (1+) • ) + = ( • 2)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	31.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.4	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.1	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 4) + = ( • 5)

By formula: (Na⁺ • 4Na) + Na = (Na⁺ • 5Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 5) + = ( • 6)

By formula: (Na⁺ • 5Na) + Na = (Na⁺ • 6Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	26.3	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 6) + = ( • 7)

By formula: (Na⁺ • 6Na) + Na = (Na⁺ • 7Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.5	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 7) + = ( • 8)

By formula: (Na⁺ • 7Na) + Na = (Na⁺ • 8Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	30.2	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 8) + = ( • 9)

By formula: (Na⁺ • 8Na) + Na = (Na⁺ • 9Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.0	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; Δ_rH<; M

( Sodium ion (1+) • 9) + = ( • 10)

By formula: (Na⁺ • 9Na) + Na = (Na⁺ • 10Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.0	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 10) + = ( • 11)

By formula: (Na⁺ • 10Na) + Na = (Na⁺ • 11Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.7	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 11) + = ( • 12)

By formula: (Na⁺ • 11Na) + Na = (Na⁺ • 12Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 12) + = ( • 13)

By formula: (Na⁺ • 12Na) + Na = (Na⁺ • 13Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.6	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 13) + = ( • 14)

By formula: (Na⁺ • 13Na) + Na = (Na⁺ • 14Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.2	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 14) + = ( • 15)

By formula: (Na⁺ • 14Na) + Na = (Na⁺ • 15Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15.9	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 15) + = ( • 16)

By formula: (Na⁺ • 15Na) + Na = (Na⁺ • 16Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.9	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 16) + = ( • 17)

By formula: (Na⁺ • 16Na) + Na = (Na⁺ • 17Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 17) + = ( • 18)

By formula: (Na⁺ • 17Na) + Na = (Na⁺ • 18Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 18) + = ( • 19)

By formula: (Na⁺ • 18Na) + Na = (Na⁺ • 19Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.6	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 19) + = ( • 20)

By formula: (Na⁺ • 19Na) + Na = (Na⁺ • 20Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.4	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 22) + = ( • 23)

By formula: (Na⁺ • 22Na) + Na = (Na⁺ • 23Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	17.1	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 23) + = ( • 24)

By formula: (Na⁺ • 23Na) + Na = (Na⁺ • 24Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.9	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 24) + = ( • 25)

By formula: (Na⁺ • 24Na) + Na = (Na⁺ • 25Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.2	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 25) + = ( • 26)

By formula: (Na⁺ • 25Na) + Na = (Na⁺ • 26Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.4	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 26) + = ( • 27)

By formula: (Na⁺ • 26Na) + Na = (Na⁺ • 27Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.2	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 27) + = ( • 28)

By formula: (Na⁺ • 27Na) + Na = (Na⁺ • 28Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.1	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 28) + = ( • 29)

By formula: (Na⁺ • 28Na) + Na = (Na⁺ • 29Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 29) + = ( • 30)

By formula: (Na⁺ • 29Na) + Na = (Na⁺ • 30Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.5	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 30) + = ( • 31)

By formula: (Na⁺ • 30Na) + Na = (Na⁺ • 31Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.4	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 31) + = ( • 32)

By formula: (Na⁺ • 31Na) + Na = (Na⁺ • 32Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.0	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 32) + = ( • 33)

By formula: (Na⁺ • 32Na) + Na = (Na⁺ • 33Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.2	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 33) + = ( • 34)

By formula: (Na⁺ • 33Na) + Na = (Na⁺ • 34Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	21.9	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 34) + = ( • 35)

By formula: (Na⁺ • 34Na) + Na = (Na⁺ • 35Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.6	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

( Sodium ion (1+) • 35) + = ( • 36)

By formula: (Na⁺ • 35Na) + Na = (Na⁺ • 36Na)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	20.8	kcal/mol	PDiss	Brechignac, Cahuzac, et al., 1989	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + Ne = (Na⁺ • Ne)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	1.76	kcal/mol	SCATTERING	Gislason, 1984	gas phase; M
Δ_rH°	1.52	kcal/mol	IMob	Viehland, 1984	gas phase; M
Δ_rH°	1.45	kcal/mol	IMob	Takebe, 1983	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + O₂S = (Na⁺ • O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18.9	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.3	cal/mol*K	N/A	Perry, Rowe, et al., 1980	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12.8	kcal/mol	FA	Perry, Rowe, et al., 1980	gas phase; Entropy change calculated or estimated; M

( Sodium ion (1+) • ) + = ( • • )

By formula: (Na⁺ • O₂S) + H₂O = (Na⁺ • H₂O • O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	19.8	kcal/mol	HPMS	Upschulte, Schelling, et al., 1984	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	20.2	cal/mol*K	HPMS	Upschulte, Schelling, et al., 1984	gas phase; M

( Sodium ion (1+) • ) + = ( • 2)

By formula: (Na⁺ • O₂S) + O₂S = (Na⁺ • 2O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	16.6	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	25.5	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

( Sodium ion (1+) • 2) + = ( • 3)

By formula: (Na⁺ • 2O₂S) + O₂S = (Na⁺ • 3O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.3	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	26.9	cal/mol*K	HPMS	Castleman, Peterson, et al., 1983	gas phase; M

( Sodium ion (1+) • 3) + = ( • 4)

By formula: (Na⁺ • 3O₂S) + O₂S = (Na⁺ • 4O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.3	kcal/mol	HPMS	Castleman, Peterson, et al., 1983	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	27.	cal/mol*K	N/A	Castleman, Peterson, et al., 1983	gas phase; Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.2	328.	HPMS	Castleman, Peterson, et al., 1983	gas phase; Entropy change calculated or estimated; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + O₂ = (Na⁺ • O₂)

Free energy of reaction

Δ_rG° (kcal/mol)	T (K)	Method	Reference	Comment
0.2	310.	DT	Keller and Beyer, 1971	gas phase; low E/N; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + O₃ = (Na⁺ • O₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12.5	kcal/mol	FA	Rowe, Viggiano, et al., 1982	gas phase; M

Sodium ion (1+) + = ( • )

By formula: Na⁺ + Xe = (Na⁺ • Xe)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	5.97	kcal/mol	SCATTERING	Gislason, 1984	gas phase; M
Δ_rH°	5.94	kcal/mol	IMob	Viehland, 1984	gas phase; M
Δ_rH°	9.52	kcal/mol	IMob	Takebe, 1983	gas phase; M

References

Go To: Top, Ion clustering data, Notes

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Castleman, Holland, et al., 1978
Castleman, A.W.; Holland, P.M.; Lindsay, D.M.; Peterson, K.I., The Properties of Clusters in the Gas Phase. 2. Ammonia about Metal Ions, J. Am. Chem. Soc., 1978, 100, 19, 6039, https://doi.org/10.1021/ja00487a011 . [all data]

Mason and Sharp, 1958
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Beyer and Keller, 1971
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Brechignac, Cahuzac, et al., 1989
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Rowe, Viggiano, et al., 1982
Rowe, B.R.; Viggiano, A.A.; Fehsenfeld, F.C.; Fahey, D.W.; Ferguson, E.E., Reactions between Neutrals Clustered on Ions, J. Chem. Phys., 1982, 76, 1, 742, https://doi.org/10.1063/1.442684 . [all data]

Notes

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Symbols used in this document:

T Temperature

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions

Δ_rS° Entropy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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T	Temperature
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_rS°	Entropy of reaction at standard conditions