Chlorine anion

• Formula: Cl^-
• Molecular weight: 35.454
• IUPAC Standard InChI:
  

  InChI=1S/ClH/h1H/p-1 Download the identifier in a file.

• IUPAC Standard InChIKey: VEXZGXHMUGYJMC-UHFFFAOYSA-M
• CAS Registry Number: 16887-00-6
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data (reactions 1 to 50)
  • Gas phase ion energetics data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data: reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 250, reactions 251 to 300, reactions 301 to 314
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Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
B - John E. Bartmess
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. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Reactions 1 to 50

 +  = (  )

By formula: Cl^- + H₂O = (Cl^-  H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	15. ± 5.	kcal/mol	AVG	N/A	Average of 11 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	19. ± 3.	cal/mol*K	AVG	N/A	Average of 8 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rG°	9. ± 4.	kcal/mol	AVG	N/A	Average of 9 values; Individual data points

 +  = (  )

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

 +  = (  )

By formula: Cl^- + HCl = (Cl^-  HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	29.6 ± 1.0	kcal/mol	N/A	Metz, Kitsopoulos, et al., 1988	gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
rH°	23.8 ± 2.0	kcal/mol	TDEq	Caldwell and Kebarle, 1985	gas phase; B,M
rH°	23.1 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	23.70 ± 0.20	kcal/mol	TDAs	Yamdagni and Kebarle, 1974	gas phase; B,M
rH°	20.4	kcal/mol	HPMS	Upschulte, Evans, et al., 1986	gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.3	cal/mol*K	PHPMS	Caldwell and Kebarle, 1985	gas phase; switching reaction(Cl-)SO2; M
rS°	23.5	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1974	gas phase; M
rS°	23.5	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°	22.8	cal/mol*K	N/A	Upschulte, Evans, et al., 1986	gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M
Quantity	Value	Units	Method	Reference	Comment
rG°	16.3 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1987	gas phase; K = 0.60 for HCl..Cl- + DCL <=> DCl..Cl- + HCl, anchored to Larson and McMahon, 1984, 32; B
rG°	17.1 ± 2.6	kcal/mol	TDEq	Caldwell and Kebarle, 1985	gas phase; B
rG°	16.0 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	16.70 ± 0.30	kcal/mol	TDAs	Yamdagni and Kebarle, 1974	gas phase; B
rG°	13.6	kcal/mol	HPMS	Upschulte, Evans, et al., 1986	gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M

 +  = (  )

By formula: Cl^- + O₂S = (Cl^-  O₂S)

Quantity	Value	Units	Method	Reference	Comment
rH°	22.2 ± 2.0	kcal/mol	TDAs	Caldwell and Kebarle, 1985	gas phase; B,M
rH°	20.9 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B
rH°	22.2 ± 2.2	kcal/mol	TDEq	Bohringer, Fahey, et al., 1984	gas phase; Relative to HOH..Cl- in Keesee, Lee, et al., 1980; B,M
rH°	21.80 ± 0.20	kcal/mol	TDAs	Keesee, Lee, et al., 1980	gas phase; B,M
rH°	20.9	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.6	cal/mol*K	PHPMS	Caldwell and Kebarle, 1985	gas phase; M
rS°	24.1	cal/mol*K	N/A	Bohringer, Fahey, et al., 1984	gas phase; switching reaction(Cl-)H2O), Entropy change calculated or estimated; Keesee and Castleman, 1980; M
rS°	20.8	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°	23.2	cal/mol*K	HPMS	Keesee, Lee, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	15.7 ± 2.0	kcal/mol	TDAs	Caldwell and Kebarle, 1985	gas phase; B
rG°	14.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B
rG°	15.0 ± 1.6	kcal/mol	TDEq	Bohringer, Fahey, et al., 1984	gas phase; Relative to HOH..Cl- in Keesee, Lee, et al., 1980; B,M
rG°	14.80 ± 0.30	kcal/mol	TDAs	Keesee, Lee, et al., 1980	gas phase; B
rG°	14.7	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
14.2	296.	FA	Fehsenfeld and Ferguson, 1974	gas phase; switching reaction(Cl-)H2O; M

 +  = (  )

By formula: Cl^- + C₆H₆ = (Cl^-  C₆H₆)

Quantity	Value	Units	Method	Reference	Comment
rH°	6.00 ± 0.46	kcal/mol	N/A	Tschurl, Ueberfluss, et al., 2007	gas phase; B
rH°	9.4 ± 2.0	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
rH°	9.90	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	8.7	kcal/mol	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
rH°	10.4	kcal/mol	PHPMS	Sunner, Nishizawa, et al., 1981	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	17.9	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
rS°	17.	cal/mol*K	N/A	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
rS°	17.1	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°	22.	cal/mol*K	N/A	Sunner, Nishizawa, et al., 1981	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	4.0 ± 2.6	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
rG°	3.8 ± 1.6	kcal/mol	IMRE	Chowdhury and Kebarle, 1986	gas phase; B
rG°	4.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	3.80	kcal/mol	IMRE	French, Ikuta, et al., 1982	gas phase; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
3.6	300.	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
3.8	300.	PHPMS	Chowdhury and Kebarle, 1986	gas phase; M
3.8	300.	PHPMS	Sunner, Nishizawa, et al., 1981	gas phase; Entropy change calculated or estimated; M

(  2) +  = (  3)

By formula: (Cl^-  2H₂O) + H₂O = (Cl^-  3H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	12. ± 2.	kcal/mol	AVG	N/A	Average of 7 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	22.3	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	22.4	cal/mol*K	HPMS	Keesee and Castleman, 1980	gas phase; M
rS°	23.2	cal/mol*K	HPMS	Arshadi, Yamdagni, et al., 1970	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	5.0 ± 0.5	kcal/mol	AVG	N/A	Average of 6 values; Individual data points

 +  = (  )

By formula: Cl^- + C₂H₃N = (Cl^-  C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
rH°	15. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	15.7	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	15.7	cal/mol*K	PHPMS	Yamabe, Furumiya, et al., 1986	gas phase; M
rS°	14.3	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
rS°	14.3	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
rS°	21.4	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)CF3H, Entropy change calculated or estimated; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	10.20 ± 0.20	kcal/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
rG°	9.2 ± 2.0	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B
rG°	8.9 ± 2.6	kcal/mol	TDAs	Yamabe, Furumiya, et al., 1986	gas phase; B
rG°	10.10 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B
rG°	9.2 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

(  ) +  = (  2)

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

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	13. ± 1.	kcal/mol	AVG	N/A	Average of 7 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	21.4	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	20.5	cal/mol*K	HPMS	Keesee and Castleman, 1980	gas phase; M
rS°	20.8	cal/mol*K	HPMS	Arshadi, Yamdagni, et al., 1970	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	6.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	6.50	kcal/mol	TDAs	Keesee and Castleman, 1980	gas phase; B
rG°	6.5 ± 1.4	kcal/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B
rG°	6.50	kcal/mol	TDAs	Arshadi, Yamdagni, et al., 1970	gas phase; B
rG°	6.7	kcal/mol	FA	Fehsenfeld and Ferguson, 1974	gas phase; M

 +  = (  )

By formula: Cl^- + C₄H₁₀O = (Cl^-  C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
rH°	19. ± 4.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	27.4	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
rS°	24.0	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
rS°	23.4	cal/mol*K	N/A	Larson and McMahon, 1984	gas phase; Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
rS°	27.	cal/mol*K	PHPMS	Kebarle, 1977	gas phase; M
rS°	10.3	cal/mol*K	N/A	Yamdagni and Kebarle, 1971	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	11.58	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
rG°	12.30 ± 0.30	kcal/mol	TDAs	Sieck, 1985	gas phase; B
rG°	11.60	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	11.1 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	11.1 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B

 +  = (  )

By formula: Cl^- + C₇H₅NO = (Cl^-  C₇H₅NO)

Quantity	Value	Units	Method	Reference	Comment
rH°	35.1 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B,M,M
rH°	35.3	kcal/mol	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.	cal/mol*K	N/A	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rS°	28.	cal/mol*K	N/A	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)4-Cl-phenol, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
rS°	26.	cal/mol*K	N/A	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)4-F-phenol, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rG°	27.3 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
24.7	423.	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
26.2	300.	PHPMS	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)4-Cl-phenol, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
25.8	300.	PHPMS	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)4-F-phenol, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

 +  = (  )

By formula: Cl^- + C₃H₆O = (Cl^-  C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	14. ± 2.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
rS°	18.2	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
rS°	19.6	cal/mol*K	PHPMS	French, Ikuta, et al., 1982	gas phase; M
rS°	17.1	cal/mol*K	PHPMS	Hiraoka, Takimoto, et al., 1986	gas phase; M
rS°	19.7	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
Quantity	Value	Units	Method	Reference	Comment
rG°	8.08 ± 0.20	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
rG°	7.30	kcal/mol	TDAs	Hiraoka, Morise, et al., 1986	gas phase; B
rG°	8.80 ± 0.30	kcal/mol	TDAs	Sieck, 1985	gas phase; B
rG°	8.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	7.9 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B

 +  = (  )

By formula: Cl^- + CHCl₃ = (Cl^-  CHCl₃)

Quantity	Value	Units	Method	Reference	Comment
rH°	15.2 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B,M
rH°	19.5 ± 2.0	kcal/mol	TDAs	Hiraoka, Mizuno, et al., 2001	gas phase; B
rH°	18.10	kcal/mol	Mobl	Giles and Grimsrud, 1993	gas phase; B
rH°	18.1 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	19.10 ± 0.70	kcal/mol	TDEq	Dougherty, Dalton, et al., 1974	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	23.2	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; From thermochemical cycle(Cl-)CF3H, Entropy change calculated or estimated; Larson and McMahon, 1984; M
rS°	24.5	cal/mol*K	HPMS	Dougherty, Dalton, et al., 1974	gas phase; M
rS°	14.8	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1971	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
rG°	11. ± 1.	kcal/mol	AVG	N/A	Average of 6 values; Individual data points

 +  = (  )

By formula: Cl^- + C₆H₆O = (Cl^-  C₆H₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	26.0 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B,M
rH°	26.0 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B
rH°	27.4	kcal/mol	PHPMS	Kebarle, 1977	gas phase; M
rH°	26.5	kcal/mol	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rH°	19.4 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	26.0	cal/mol*K	PHPMS	French, Ikuta, et al., 1982	gas phase; M
rS°	25.	cal/mol*K	PHPMS	Kebarle, 1977	gas phase; M
rS°	25.	cal/mol*K	N/A	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rS°	15.5	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	19.2 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B
rG°	18.5 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B
rG°	14.8 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
15.9	423.	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M

 +  = (  )

By formula: Cl^- + C₆H₅Cl = (Cl^-  C₆H₅Cl)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.00 ± 0.10	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
rH°	13.6 ± 1.0	kcal/mol	IMRE	Larson and McMahon, 1984	gas phase; B,B,M
rH°	12.6	kcal/mol	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.	cal/mol*K	N/A	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
rS°	16.5	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
rS°	22.4	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
Quantity	Value	Units	Method	Reference	Comment
rG°	7.10 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B
rG°	6.9 ± 1.0	kcal/mol	IMRE	Larson and McMahon, 1984	gas phase; B,B,M
rG°	6.50	kcal/mol	TDEq	French, Ikuta, et al., 1982	gas phase; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
6.6	300.	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
6.5	300.	PHPMS	French, Ikuta, et al., 1982	gas phase; M

(  3) +  = (  4)

By formula: (Cl^-  3H₂O) + H₂O = (Cl^-  4H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	10.6 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rH°	9.70	kcal/mol	N/A	Markovich, Pollack, et al., 1994	gas phase; For photodissociation plus electron loss. Affinity is difference from lower solvated ion.; B
rH°	10.6 ± 0.3	kcal/mol	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rH°	10.90 ± 0.70	kcal/mol	TDAs	Keesee and Castleman, 1980	gas phase; B,M
rH°	11.1 ± 1.0	kcal/mol	TDAs	Arshadi, Yamdagni, et al., 1970	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.7	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	24.8	cal/mol*K	HPMS	Keesee and Castleman, 1980	gas phase; M
rS°	25.8	cal/mol*K	HPMS	Arshadi, Yamdagni, et al., 1970	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	3.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	3.50	kcal/mol	TDAs	Keesee and Castleman, 1980	gas phase; B
rG°	3.40	kcal/mol	TDAs	Arshadi, Yamdagni, et al., 1970	gas phase; B
rG°	4.0 ± 2.0	kcal/mol	TDAs	Kebarle, Arshadi, et al., 1968	gas phase; B,M

 +  = (  )

By formula: Cl^- + CH₃Cl = (Cl^-  CH₃Cl)

Quantity	Value	Units	Method	Reference	Comment
rH°	10.4 ± 1.0	kcal/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
rH°	11.7 ± 2.0	kcal/mol	TDAs	Hiraoka, Mizuno, et al., 2001	gas phase; B
rH°	12.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	8.60 ± 0.20	kcal/mol	TDAs	Dougherty, Dalton, et al., 1974	gas phase; B,M
rH°	15.2 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rS°	20.5	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°	15.3	cal/mol*K	HPMS	Dougherty, Dalton, et al., 1974	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
rG°	5.80 ± 0.20	kcal/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
rG°	4.84	kcal/mol	TDAs	Hiraoka, Mizuno, et al., 2001	gas phase; B
rG°	6.1 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	4.10 ± 0.50	kcal/mol	TDAs	Dougherty, Dalton, et al., 1974	gas phase; B
rG°	10.8 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B

 +  = (  )

By formula: Cl^- + CH₂O₂ = (Cl^-  CH₂O₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	27.4 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B,M
rH°	27.7 ± 2.1	kcal/mol	CIDT	Walker and Sunderlin, 1999	gas phase; B
rH°	25.6 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	37.2 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; In serious disagreement with other's values. Source of error not obvious.; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	24.5	cal/mol*K	PHPMS	French, Ikuta, et al., 1982	gas phase; M
rS°	24.1	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°	39.6	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	20.1 ± 2.0	kcal/mol	TDAs	French, Ikuta, et al., 1982	gas phase; B
rG°	18.4 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	25.4 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; In serious disagreement with other's values. Source of error not obvious.; B

 +  = (  )

By formula: Cl^- + C₆H₅ClO = (Cl^-  C₆H₅ClO)

Quantity	Value	Units	Method	Reference	Comment
rH°	29.6 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B,M
rH°	30.1	kcal/mol	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.	cal/mol*K	N/A	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rS°	26.3	cal/mol*K	N/A	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)C6H5OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rG°	22.1 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
19.5	423.	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
21.0	300.	PHPMS	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)C6H5OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

 +  = (  )

By formula: Cl^- + C₆H₅FO = (Cl^-  C₆H₅FO)

Quantity	Value	Units	Method	Reference	Comment
rH°	27.9 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B,M
rH°	28.6	kcal/mol	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.	cal/mol*K	N/A	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rS°	25.3	cal/mol*K	N/A	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)C6H5OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rG°	20.6 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
18.0	423.	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
19.3	300.	PHPMS	Cummings, French, et al., 1977	gas phase; switching reaction(Cl-)C6H5OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

 +  = (  )

By formula: Cl^- + C₂H₆O = (Cl^-  C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	17.90 ± 0.40	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
rH°	17.60 ± 0.50	kcal/mol	TDAs	Hiraoka, 1987	gas phase; B,B,M
rH°	17.3 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	23.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
rS°	23.1	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	10.65	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
rG°	10.5 ± 2.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	10.5 ± 2.0	kcal/mol	TDAs	Hiraoka, 1987	gas phase; B
rG°	10.4 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
10.0	295.	ICR	Riveros, 1974	gas phase; switching reaction(Cl-)CH3OH; Riveros, Breda, et al., 1973; M

(  ) +  = (  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) +  = (  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

 +  = (  )

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

Quantity	Value	Units	Method	Reference	Comment
rH°	16.3 ± 1.0	kcal/mol	TDAs	Chowdhury and Kebarle, 1986	gas phase; B,M
rH°	16.5	kcal/mol	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.	cal/mol*K	N/A	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
rS°	19.4	cal/mol*K	PHPMS	Chowdhury and Kebarle, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	10.5 ± 1.6	kcal/mol	TDAs	Chowdhury and Kebarle, 1986	gas phase; B
rG°	7.10	kcal/mol	TDEq	French, Ikuta, et al., 1982	gas phase; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
10.5	300.	PHPMS	Paul and Kebarle, 1991	gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
7.7	300.	PHPMS	French, Ikuta, et al., 1982	gas phase; M

 +  = (  )

By formula: Cl^- + C₆H₁₅B = (Cl^-  C₆H₁₅B)

Quantity	Value	Units	Method	Reference	Comment
rH°	23.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M
rH°	23.8	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.	cal/mol*K	N/A	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(t-C4H9OH), Entropy change calculated or estimated; M
rS°	22.0	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
Quantity	Value	Units	Method	Reference	Comment
rG°	17.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M
rG°	17.2	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

 +  =

By formula: Cl^- + H⁺ = HCl

Quantity	Value	Units	Method	Reference	Comment
rH°	333.40	kcal/mol	N/A	Martin and Hepburn, 1998	gas phase; Given: «DELTA»Hacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol; B
rH°	333.6 ± 2.1	kcal/mol	G+TS	Fujio, McIver, et al., 1981	gas phase; value altered from reference due to change in acidity scale; B
rH°	329.10	kcal/mol	N/A	Check, Faust, et al., 2001	gas phase; FeCC-(q); ; «DELTA»S(EA)=5.0; B
Quantity	Value	Units	Method	Reference	Comment
rG°	328.10 ± 0.10	kcal/mol	H-TS	Martin and Hepburn, 1998	gas phase; Given: «DELTA»Hacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol; B
rG°	328.3 ± 2.0	kcal/mol	IMRE	Fujio, McIver, et al., 1981	gas phase; value altered from reference due to change in acidity scale; B
rG°	323.70	kcal/mol	N/A	Check, Faust, et al., 2001	gas phase; FeCC-(q); ; «DELTA»S(EA)=5.0; B

 +  = (  )

By formula: Cl^- + C₂H₄O₂ = (Cl^-  C₂H₄O₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	24.40 ± 0.20	kcal/mol	TDAs	Sieck, 1985	gas phase; B,M
rH°	21.6 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B,M
rH°	23.9 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	19.6	cal/mol*K	PHPMS	Sieck, 1985	gas phase; M
rS°	24.0	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°	19.3	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	18.60 ± 0.30	kcal/mol	TDAs	Sieck, 1985	gas phase; B
rG°	15.8 ± 2.0	kcal/mol	TDAs	Yamdagni and Kebarle, 1971	gas phase; B
rG°	16.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

 +  = (  )

By formula: Cl^- + H₃N = (Cl^-  H₃N)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	<7.30 ± 0.40	kcal/mol	N/A	Tschurl and Boesl, 2008	gas phase; B
rH°	8.20 ± 0.10	kcal/mol	TDAs	Evans, Keesee, et al., 1987	gas phase; B,M
rH°	8.9 ± 1.2	kcal/mol	N/A	Markovich, Chesnovsky, et al., 1993	gas phase; B
rH°	10.5 ± 4.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	15.4	cal/mol*K	HPMS	Evans, Keesee, et al., 1987	gas phase; M
rS°	19.9	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)CH3F, Entropy change calculated or estimated; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	3.60 ± 0.20	kcal/mol	TDAs	Evans, Keesee, et al., 1987	gas phase; B
rG°	4.5 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

 +  = (  )

By formula: Cl^- + C₇H₈O = (Cl^-  C₇H₈O)

Quantity	Value	Units	Method	Reference	Comment
rH°	25.6 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B,M
rH°	25.9	kcal/mol	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.	cal/mol*K	N/A	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
rS°	26.7	cal/mol*K	PHPMS	Cummings, French, et al., 1977	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	17.9 ± 2.0	kcal/mol	TDEq	Cummings, French, et al., 1977	gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
15.3	423.	PHPMS	Paul and Kebarle, 1990	gas phase; Entropy change calculated or estimated; M
16.6	300.	PHPMS	Cummings, French, et al., 1977	gas phase; M

 +  = (  )

By formula: Cl^- + C₃H₈O = (Cl^-  C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
rH°	19.40 ± 0.20	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
rH°	18.3 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B,M
rH°	17.6 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	24.7	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
rS°	23.2	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(cl-)t-C4H9OH, Entropy change calculated or estimated; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	11.32	kcal/mol	TDAs	Bogdanov, Peschke, et al., 1999	gas phase; B
rG°	10.90	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	10.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

(  6) +  = (  7)

By formula: (Cl^-  6H₂O) + H₂O = (Cl^-  7H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	8.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B
rH°	6.90	kcal/mol	N/A	Markovich, Pollack, et al., 1994	gas phase; For photodissociation plus electron loss. Affinity is difference from lower solvated ion.; B
rH°	8.1	kcal/mol	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.	cal/mol*K	N/A	Hiraoka, Mizuse, et al., 1988, 2	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	2.1 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; Estimated entropy; single temperature measurement; B

 +  = (  )

By formula: Cl^- + CH₂Cl₂ = (Cl^-  CH₂Cl₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	15.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rH°	14.8 ± 2.0	kcal/mol	TDAs	Hiraoka, Mizuno, et al., 2001	gas phase; B
rH°	15.50 ± 0.30	kcal/mol	TDEq	Dougherty, Dalton, et al., 1974	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.1	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; Kebarle, 1977; M
rS°	22.0	cal/mol*K	HPMS	Dougherty, Dalton, et al., 1974	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
rG°	8.84	kcal/mol	TDAs	Hiraoka, Mizuno, et al., 2001	gas phase; B
rG°	8.90 ± 0.60	kcal/mol	TDEq	Dougherty, Dalton, et al., 1974	gas phase; B

 +  = (  )

By formula: Cl^- + F₃P = (Cl^-  F₃P)

Quantity	Value	Units	Method	Reference	Comment
rH°	15.5 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B
rH°	15.5	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.0	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
Quantity	Value	Units	Method	Reference	Comment
rG°	9.2 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B
rG°	9.2	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M

 +  = (  )

By formula: Cl^- + C₃H₈O = (Cl^-  C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
rH°	20.40 ± 0.50	kcal/mol	TDAs	Hiraoka, 1987	gas phase; B,B,M
rH°	17.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	29.0	cal/mol*K	PHPMS	Hiraoka and Mizuse, 1987	gas phase; M
rS°	23.2	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	11.70	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	11.7 ± 2.0	kcal/mol	TDAs	Hiraoka, 1987	gas phase; B
rG°	10.8 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

 +  = (  )

By formula: Cl^- + CHN = (Cl^-  CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	21.8 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,B,M
rH°	21.0 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	18.9	cal/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
rS°	23.7	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
Quantity	Value	Units	Method	Reference	Comment
rG°	16.2 ± 1.6	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B
rG°	16.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
rG°	13.9 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 2	gas phase; B,M

 +  = (  )

By formula: Cl^- + CO₂ = (Cl^-  CO₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	6.80 ± 0.50	kcal/mol	PDis	Arnold, Bradforth, et al., 1995	gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
rH°	7.60	kcal/mol	TDEq	Hiraoka, Shoda, et al., 1986	gas phase; B,M
rH°	8.00 ± 0.10	kcal/mol	TDAs	Keesee, Lee, et al., 1980	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	18.2	cal/mol*K	PHPMS	Hiraoka, Shoda, et al., 1986	gas phase; M
rS°	19.6	cal/mol*K	HPMS	Keesee, Lee, et al., 1980	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	2.10	kcal/mol	TDEq	Hiraoka, Shoda, et al., 1986	gas phase; B
rG°	2.10 ± 0.10	kcal/mol	TDAs	Keesee, Lee, et al., 1980	gas phase; B

(  3) +  = (  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) +  = (  5)

By formula: (Cl^-  4H₂O) + H₂O = (Cl^-  5H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	9.5 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rH°	6.70	kcal/mol	N/A	Markovich, Pollack, et al., 1994	gas phase; For photodissociation plus electron loss. Affinity is difference from lower solvated ion.; B
rH°	9.5 ± 0.3	kcal/mol	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.7	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	3.0 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rG°	2.9 ± 2.0	kcal/mol	TDAs	Kebarle, Arshadi, et al., 1968	gas phase; B,M

 +  = (  )

By formula: Cl^- + C₃F₆O = (Cl^-  C₃F₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	28.8 ± 1.0	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
rH°	22.9 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.	cal/mol*K	N/A	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(t-C4H9OH), Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	17.6 ± 1.0	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
rG°	16.3 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M
rG°	16.3	kcal/mol	ICR	Larson and McMahon, 1984, 3	gas phase; switching reaction(Cl-)(C2H5)3B; M

(  3) +  = (  4)

By formula: (Cl^-  3C₂H₃N) + C₂H₃N = (Cl^-  4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
rH°	10.90 ± 0.30	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B,M
rH°	9.00 ± 0.80	kcal/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
rH°	6.20	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	26.6	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	10.8	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
rG°	2.9 ± 1.2	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B
rG°	3.00	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

 +  = (  )

By formula: Cl^- + C₃HF₅O = (Cl^-  C₃HF₅O)

Quantity	Value	Units	Method	Reference	Comment
rH°	26.1 ± 1.0	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
rH°	23.4	kcal/mol	ICR	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity	Value	Units	Method	Reference	Comment
rS°	23.9	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
Quantity	Value	Units	Method	Reference	Comment
rG°	17.2 ± 1.0	kcal/mol	TDAs	Bofdanov and McMahon, 2002	gas phase; B
rG°	16.3 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1984, 3	gas phase; B,M,M

 +  = (  )

By formula: Cl^- + C₃H₂F₆O = (Cl^-  C₃H₂F₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	26.5	kcal/mol	ICR	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)(CF3)2CH3COH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.0	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)(CF3)2CH3COH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	19.0	kcal/mol	ICR	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)(CF3)2CH3COH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M

(  2) +  = (  3)

By formula: (Cl^-  2C₂H₃N) + C₂H₃N = (Cl^-  3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
rH°	11.20 ± 0.40	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B,M
rH°	12.00 ± 0.70	kcal/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
rH°	10.60	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	19.6	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	20.1	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	5.3 ± 1.3	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B
rG°	4.60	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

 +  = (  )

By formula: Cl^- + CS₂ = (Cl^-  CS₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	8.80 ± 0.20	kcal/mol	TDAs	Hiraoka, Fujimaki, et al., 1993	gas phase; B,M
rH°	11.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	13.9	cal/mol*K	PHPMS	Hiraoka, Fujimaki, et al., 1993	gas phase; M
rS°	20.	cal/mol*K	N/A	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(Cl-)t-C4H9OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	4.6 ± 2.2	kcal/mol	TDAs	Hiraoka, Fujimaki, et al., 1993	gas phase; B
rG°	5.7 ± 2.0	kcal/mol	IMRE	Larson and McMahon, 1985	gas phase; B,M

(  ) +  = (  2)

By formula: (Cl^-  C₂H₃N) + C₂H₃N = (Cl^-  2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.50 ± 0.40	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B,M
rH°	12.00 ± 0.70	kcal/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
rH°	12.20	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	16.3	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
rS°	18.9	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	7.6 ± 1.2	kcal/mol	TDAs	Hiraoka, Mizuse, et al., 1988, 2	gas phase; B
rG°	6.60	kcal/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

 + C₄H₄F₆O = (  C₄H₄F₆O)

By formula: Cl^- + C₄H₄F₆O = (Cl^-  C₄H₄F₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	26.5	kcal/mol	ICR	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)HCOOH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.0	cal/mol*K	N/A	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)HCOOH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M
Quantity	Value	Units	Method	Reference	Comment
rG°	19.0	kcal/mol	ICR	Larson and McMahon, 1984, 2	gas phase; switching reaction(Cl-)HCOOH, Entropy change calculated or estimated, DG>, «DELTA»rH>; Larson and McMahon, 1984; M

(  5) +  = (  6)

By formula: (Cl^-  5H₂O) + H₂O = (Cl^-  6H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	8.8 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B
rH°	8.50	kcal/mol	N/A	Markovich, Pollack, et al., 1994	gas phase; For photodissociation plus electron loss. Affinity is difference from lower solvated ion.; B
rH°	8.8 ± 0.4	kcal/mol	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.2	cal/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	2.4 ± 1.0	kcal/mol	TDAs	Hiraoka and Mizuse, 1987	gas phase; B

 +  = (  )

By formula: Cl^- + CH₃Br = (Cl^-  CH₃Br)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.5 ± 1.0	kcal/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
rH°	10.90 ± 0.50	kcal/mol	TDAs	Dougherty and Roberts, 1974	gas phase; B,M
rH°	12.2 ± 3.0	kcal/mol	IMRB	Riveros, Breda, et al., 1973	gas phase; Anchored: Larson and McMahon, 1984, 3; B
Quantity	Value	Units	Method	Reference	Comment
rS°	12.8	cal/mol*K	HPMS	Dougherty and Roberts, 1974	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
rG°	6.80 ± 0.20	kcal/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
rG°	7.1 ± 1.2	kcal/mol	TDAs	Dougherty and Roberts, 1974	gas phase; B

(  ) +  = (  2)

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

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	15.20 ± 0.20	kcal/mol	TDAs	Yamdagni and Kebarle, 1974	gas phase; B,M
rH°	14.0	kcal/mol	PHPMS	Caldwell and Kebarle, 1985	gas phase; switching reaction(Cl- HCl)SO2; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.4	cal/mol*K	PHPMS	Caldwell and Kebarle, 1985	gas phase; switching reaction(Cl- HCl)SO2; M
rS°	24.4	cal/mol*K	PHPMS	Yamdagni and Kebarle, 1974	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	7.90 ± 0.20	kcal/mol	TDAs	Yamdagni and Kebarle, 1974	gas phase; B

 + Cl₄Th = (  Cl₄Th)

By formula: Cl^- + Cl₄Th = (Cl^-  Cl₄Th)

Quantity	Value	Units	Method	Reference	Comment
rH°	24.2	kcal/mol	ICR	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(t-C4H9OH), Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.	cal/mol*K	N/A	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(t-C4H9OH), Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	17.6	kcal/mol	ICR	Larson and McMahon, 1985	gas phase; switching reaction,Thermochemical ladder(t-C4H9OH), Entropy change calculated or estimated; M

 + C₂H₃ClO₂ = (  C₂H₃ClO₂)