CN anion

Formula: CN^-
Molecular weight: 26.0179
Information on this page:
Other data available:
- Reaction thermochemistry data: reactions 51 to 66
- Gas phase ion energetics data
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Reaction thermochemistry data

Go To: Top, Ion clustering data, References, Notes

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

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Reactions 1 to 50

CN^- + = (CN^- • )

By formula: CN^- + H₂O = (CN^- • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	53.1 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	61.1 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,B,M,M
Δ_rH°	57.74	kJ/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B,M
Δ_rH°	61.1	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	75.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Δ_rS°	82.8	J/mol*K	HPMS	Payzant, Yamdagni, et al., 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	30.5 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rG°	33.1	kJ/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + CHN = (CN^- • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	91. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rH°	83.7 ± 8.4	kJ/mol	Est	Larson and McMahon, 1984	gas phase; B
Δ_rH°	86.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	86.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	113.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(H2O), Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	60.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	57.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rG°	60.7 ± 6.7	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃N = (CN^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	57.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rH°	65.69	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.8	J/mol*K	PHPMS	Hiraoka, Mizure, et al., 1988	gas phase; M
Δ_rS°	59.4	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rG°	38.5	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + CH₄O = (CN^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	65.7 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	69.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	96.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	36.8 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	43.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + =

By formula: CN^- + H⁺ = CHN

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	1464. ± 4.2	kJ/mol	CIDT	Akin and Ervin, 2006	gas phase; B
Δ_rH°	1466.5 ± 0.71	kJ/mol	D-EA	Bradforth, Kim, et al., 1993	gas phase; B
Δ_rH°	1469. ± 8.8	kJ/mol	G+TS	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1433. ± 4.6	kJ/mol	H-TS	Akin and Ervin, 2006	gas phase; B
Δ_rG°	1435.8 ± 1.1	kJ/mol	H-TS	Bradforth, Kim, et al., 1993	gas phase; B
Δ_rG°	1438. ± 8.4	kJ/mol	IMRE	Bartmess, Scott, et al., 1979	gas phase; value altered from reference due to change in acidity scale; B

(CN^- • 2) + = (CN^- • 3)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.8 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B,M
Δ_rH°	44.8	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.8	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	82.8	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	33. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B

CN^- + = (CN^- • )

By formula: CN^- + C₃H₈O = (CN^- • C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	69.9 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	37.7 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	44.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃F₃O = (CN^- • C₂H₃F₃O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	100.4 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	103. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	109.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	63.18 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	68.6 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₅N = (CN^- • C₄H₅N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	97.9 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	82. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	113.	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	99.6	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	64.0 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	51.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₆O = (CN^- • C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	72.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	94.1	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	41.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃F₃ = (CN^- • C₂H₃F₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	77.0	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	46.0	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₆F₂O = (CN^- • C₃H₆F₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	109.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	66.1	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + C₄H₄F₆O = (CN^- • C₄H₄F₆O)

By formula: CN^- + C₄H₄F₆O = (CN^- • C₄H₄F₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M,M

CN^- + = (CN^- • )

By formula: CN^- + H₂S = (CN^- • H₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	79.1 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988, 2	gas phase; B
Δ_rH°	83. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	99.6	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	51.9 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

(CN^- • 3) + = (CN^- • 4)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	N/A	Meot-Ner (Mautner) and Speller, 1989	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	16. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
19.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n, Entropy change calculated or estimated; M

(CN^- • 6) + = (CN^- • 7)

By formula: (CN^- • 6CHN) + CHN = (CN^- • 7CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	N/A	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.69	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	238.	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M

(CN^- • 2) + = (CN^- • 3)

By formula: (CN^- • 2CHN) + CHN = (CN^- • 3CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.7	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	52.7	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26.4	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 3) + = (CN^- • 4)

By formula: (CN^- • 3CHN) + CHN = (CN^- • 4CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	45.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	104.	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	104.	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	14.6	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • ) + = (CN^- • 2)

By formula: (CN^- • CHN) + CHN = (CN^- • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	68.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	68.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	41.4	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • • 2) + = (CN^- • 2 • 2)

By formula: (CN^- • H₂O • 2CHN) + H₂O = (CN^- • 2H₂O • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
15.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • 3) + = (CN^- • • 3)

By formula: (CN^- • 3CHN) + H₂O = (CN^- • H₂O • 3CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	14. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
18.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • 4) + = (CN^- • 5)

By formula: (CN^- • 4CHN) + CHN = (CN^- • 5CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Δ_rH°	41.	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.5	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	84.5	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	15.9	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • ) + = (CN^- • 2)

By formula: (CN^- • H₂O) + H₂O = (CN^- • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.0 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Δ_rH°	49.0	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	75.7	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

CN^- + C₂F₄O = (CN^- • C₂F₄O)

By formula: CN^- + C₂F₄O = (CN^- • C₂F₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + F₃OP = (CN^- • F₃OP)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	61.1 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂HF₅O = (CN^- • C₂HF₅O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	78. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	47.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₄S = (CN^- • F₄S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	70.7 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₄Si = (CN^- • F₄Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	114. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	76.6 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + AsF₃ = (CN^- • AsF₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	104. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	69.5 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₂OS = (CN^- • F₂OS)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	66.1 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28.9 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₃P = (CN^- • F₃P)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₅ClO = (CN^- • C₂H₅ClO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	88. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	107.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	56.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₉BO₃ = (CN^- • C₃H₉BO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	82.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₂F₄O = (CN^- • C₂H₂F₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	92. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	63.2 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CF₂O = (CN^- • CF₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₅FO = (CN^- • C₂H₅FO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	106.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CH₃F₃Si = (CN^- • CH₃F₃Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	94.6 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	57.3 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₃F₃O = (CN^- • C₃H₃F₃O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	106.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃HF₅O = (CN^- • C₃HF₅O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74.9 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₅NO₂ = (CN^- • C₄H₅NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	41.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHCl₃ = (CN^- • CHCl₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	45.2 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHCl₂F = (CN^- • CHCl₂F)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	74. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	43.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₁₀O = (CN^- • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₂F₆O = (CN^- • C₃H₂F₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	105. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	70.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₆O = (CN^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	62. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	94.1	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	33. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CH₂Cl₂ = (CN^- • CH₂Cl₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	68. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	101.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHF₃ = (CN^- • CHF₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	71. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₆F₂Si = (CN^- • C₂H₆F₂Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	70.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

(CN^- • • ) + = (CN^- • 2 • )

By formula: (CN^- • H₂O • CHN) + H₂O = (CN^- • 2H₂O • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	73.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

(CN^- • 2) + = (CN^- • • 2)

By formula: (CN^- • 2CHN) + H₂O = (CN^- • H₂O • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	52.3	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	17. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

Ion clustering data

Go To: Top, Reaction thermochemistry data, References, Notes

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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

CN^- + = (CN^- • )

By formula: CN^- + AsF₃ = (CN^- • AsF₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	104. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	69.5 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CF₂O = (CN^- • CF₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHCl₂F = (CN^- • CHCl₂F)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	74. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	43.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHCl₃ = (CN^- • CHCl₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	45.2 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHF₃ = (CN^- • CHF₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	71. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CHN = (CN^- • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	91. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rH°	83.7 ± 8.4	kJ/mol	Est	Larson and McMahon, 1984	gas phase; B
Δ_rH°	86.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	86.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	86.2	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	113.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(H2O), Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	60.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	57.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rG°	60.7 ± 6.7	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • ) + = (CN^- • 2)

By formula: (CN^- • CHN) + CHN = (CN^- • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	68.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	68.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	91.2	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	41.4	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 2) + = (CN^- • 3)

By formula: (CN^- • 2CHN) + CHN = (CN^- • 3CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.7	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	52.7	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	88.7	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26.4	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 3) + = (CN^- • 4)

By formula: (CN^- • 3CHN) + CHN = (CN^- • 4CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rH°	45.6	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	104.	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Δ_rS°	104.	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	14.6	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 4) + = (CN^- • 5)

By formula: (CN^- • 4CHN) + CHN = (CN^- • 5CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Δ_rH°	41.	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.5	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	84.5	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	15.9	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 5) + = (CN^- • 6)

By formula: (CN^- • 5CHN) + CHN = (CN^- • 6CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	85.4	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.0	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(CN^- • 6) + = (CN^- • 7)

By formula: (CN^- • 6CHN) + CHN = (CN^- • 7CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	N/A	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.69	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	238.	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M

(CN^- • ) + = (CN^- • • )

By formula: (CN^- • CHN) + H₂O = (CN^- • H₂O • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	51.9 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.4	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	27. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

(CN^- • 2) + = (CN^- • • 2)

By formula: (CN^- • 2CHN) + H₂O = (CN^- • H₂O • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	52.3	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	17. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

(CN^- • 3) + = (CN^- • • 3)

By formula: (CN^- • 3CHN) + H₂O = (CN^- • H₂O • 3CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	14. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
18.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • • ) + = (CN^- • 2 • )

By formula: (CN^- • CHN • H₂O) + CHN = (CN^- • 2CHN • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	55.2	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	74.5	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • • 2) + = (CN^- • 2 • 2)

By formula: (CN^- • CHN • 2H₂O) + CHN = (CN^- • 2CHN • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.7	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
31.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • 2 • ) + = (CN^- • 3 • )

By formula: (CN^- • 2CHN • H₂O) + CHN = (CN^- • 3CHN • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	51.5	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
30.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

CN^- + = (CN^- • )

By formula: CN^- + CH₂Cl₂ = (CN^- • CH₂Cl₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	68. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	101.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CH₃Cl = (CN^- • CH₃Cl)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	42.7 ± 4.2	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.5 ± 0.84	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + CH₃F₃Si = (CN^- • CH₃F₃Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	94.6 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	57.3 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CH₄O = (CN^- • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	65.7 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	69.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	96.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	36.8 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	43.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + CO₂ = (CN^- • CO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	72.4 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	132.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	33.1 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B

CN^- + C₂F₄O = (CN^- • C₂F₄O)

By formula: CN^- + C₂F₄O = (CN^- • C₂F₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + C₂HF₅O = (CN^- • C₂HF₅O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	78. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	47.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₂F₄O = (CN^- • C₂H₂F₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	92. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	63.2 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃F₃O = (CN^- • C₂H₃F₃O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	100.4 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	103. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	109.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	63.18 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	68.6 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃F₃ = (CN^- • C₂H₃F₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	77.0	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	46.0	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₃N = (CN^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	57.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rH°	65.69	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.8	J/mol*K	PHPMS	Hiraoka, Mizure, et al., 1988	gas phase; M
Δ_rS°	59.4	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rG°	38.5	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + C₂H₅ClO = (CN^- • C₂H₅ClO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	88. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	107.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	56.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₅FO = (CN^- • C₂H₅FO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	106.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₆F₂Si = (CN^- • C₂H₆F₂Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	70.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + C₂H₆O = (CN^- • C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	72.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	94.1	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	41.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + C₃F₆O = (CN^- • C₃F₆O)

By formula: CN^- + C₃F₆O = (CN^- • C₃F₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	115. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	72.0 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + C₃HF₅O = (CN^- • C₃HF₅O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74.9 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₂F₆O = (CN^- • C₃H₂F₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	105. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	70.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₃F₃O = (CN^- • C₃H₃F₃O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	106.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₆F₂O = (CN^- • C₃H₆F₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	109.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	66.1	kJ/mol	ICR	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₆O = (CN^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	62. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	94.1	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	33. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₈O = (CN^- • C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	69.9 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	37.7 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	44.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₃H₉BO₃ = (CN^- • C₃H₉BO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	82.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	150.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + C₄H₄F₆O = (CN^- • C₄H₄F₆O)

By formula: CN^- + C₄H₄F₆O = (CN^- • C₄H₄F₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δ_rS°	110.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₅NO₂ = (CN^- • C₄H₅NO₂)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	41.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₅N = (CN^- • C₄H₅N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	97.9 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	82. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	113.	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	99.6	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	64.0 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	51.5 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₄H₉Cl = (CN^- • C₄H₉Cl)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	66.5 ± 4.2	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	31.6 ± 0.84	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + C₄H₁₀O = (CN^- • C₄H₁₀O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	44.8 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + C₆H₁₁NO₃ = (CN^- • C₆H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	110.	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

CN^- + = (CN^- • )

By formula: CN^- + C₆H₁₁NO₃ = (CN^- • C₆H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	110. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + C₆H₁₅B = (CN^- • C₆H₁₅B)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	150.2 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	115.5 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + F₂OS = (CN^- • F₂OS)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	66.1 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28.9 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₃OP = (CN^- • F₃OP)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	61.1 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₃P = (CN^- • F₃P)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26.8 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₄S = (CN^- • F₄S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	108. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	70.7 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + F₄Si = (CN^- • F₄Si)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	114. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Larson, Szulejko, et al., 1988	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	76.6 ± 2.1	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + H₂O = (CN^- • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	53.1 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Δ_rH°	61.1 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,B,M,M
Δ_rH°	57.74	kJ/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B,M
Δ_rH°	61.1	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	75.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Δ_rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Δ_rS°	82.8	J/mol*K	HPMS	Payzant, Yamdagni, et al., 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	30.5 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
Δ_rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rG°	33.1	kJ/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B

(CN^- • 3) + = (CN^- • • 3)

By formula: (CN^- • 3H₂O) + CHN = (CN^- • CHN • 3H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	54.8	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
33.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • • ) + = (CN^- • 2 • )

By formula: (CN^- • H₂O • CHN) + H₂O = (CN^- • 2H₂O • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	73.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

(CN^- • • 2) + = (CN^- • 2 • 2)

By formula: (CN^- • H₂O • 2CHN) + H₂O = (CN^- • 2H₂O • 2CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	37. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
15.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

(CN^- • 2 • ) + = (CN^- • 3 • )

By formula: (CN^- • 2H₂O • CHN) + H₂O = (CN^- • 3H₂O • CHN)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

(CN^- • ) + = (CN^- • 2)

By formula: (CN^- • H₂O) + H₂O = (CN^- • 2H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.0 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Δ_rH°	49.0	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	75.7	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B

(CN^- • 2) + = (CN^- • 3)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	44.8 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B,M
Δ_rH°	44.8	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.8	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Δ_rS°	82.8	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	33. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B

(CN^- • 3) + = (CN^- • 4)

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

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	84.	J/mol*K	N/A	Meot-Ner (Mautner) and Speller, 1989	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	16. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
19.	262.	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n, Entropy change calculated or estimated; M

CN^- + = (CN^- • )

By formula: CN^- + H₂S = (CN^- • H₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	79.1 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988, 2	gas phase; B
Δ_rH°	83. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	99.6	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	51.9 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M

CN^- + = (CN^- • )

By formula: CN^- + H₃B = (CN^- • H₃B)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	256. ± 8.8	kJ/mol	Endo	Workman and Squires, 1988	gas phase; B

CN^- + = (CN^- • )

By formula: CN^- + O₂S = (CN^- • O₂S)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	90.8 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	56.07 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B

References

Go To: Top, Reaction thermochemistry data, Ion clustering data, Notes

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

Meot-ner, 1988
Meot-ner, M., The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules, J. Am. Chem. Soc., 1988, 110, 12, 3858, https://doi.org/10.1021/ja00220a022 . [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Meot-Ner (Mautner) and Speller, 1989
Meot-Ner (Mautner), M.; Speller, C.V., Multicomponent Cluster Ions.3. Comparative Stabilities of Cationic and Anionic Hydrogen Bonded Networks. Mixed Clusters of Water and Hydrogen Cyanide, J. Phys. Chem., 1989, 93, 6580. [all data]

Meot-ner, 1988, 2
Meot-ner, M., Ionic Hydrogen Bond and Ion Solvation. ₆. Interaction Energies of the Acetate Ion with Organic Molecules. Comparison of CH₃COO^- with Cl^-, CN^-, and SH^-, J. Am. Chem. Soc., 1988, 110, 12, 3854, https://doi.org/10.1021/ja00220a022 . [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Gas phase bihalide and pseudohalide ions. An ICR determination of hydrogen bond energies in XHY- species (X,Y = F, Cl, Br, CN), Inorg. Chem., 1984, 23, 2029. [all data]

Meot-ner, Cybulski, et al., 1988
Meot-ner, M.; Cybulski, S.M.; Scheiner, S.; Liebman, J.F., Is CN^- Significantly Anisotropic? Comparison of CN^- vs. Cl^-: Clustering with HCN and Condensed Phase Thermochemistry, J. Phys. Chem., 1988, 92, 10, 2738, https://doi.org/10.1021/j100321a009 . [all data]

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

Akin and Ervin, 2006
Akin, F.A.; Ervin, K.M., Collision-induced dissociation of HS-(HCN): Unsymmetrical hydrogen bonding in a proton-bound dimer anion, J. Phys. Chem. A, 2006, 110, 4, 1342-1349, https://doi.org/10.1021/jp0540454 . [all data]

Bradforth, Kim, et al., 1993
Bradforth, S.E.; Kim, E.H.; Arnold, D.W.; Neumark, D.M., Photoelectron Spectroscopy of CN-, NCO-, and NCS-, J. Chem. Phys., 1993, 98, 2, 800, https://doi.org/10.1063/1.464244 . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Meot-Ner (Mautner) M. and Speller, 1989
Meot-Ner (Mautner) M.; Speller, C.V., Multicomponent Cluster Ions. 2. Comparative Stabilities of Cationic and Anionic Hydrogen Bonded Networks. Mixed Clusters of Water and Hydrogen Cyanide, J. Phys. Chem., 1989, 93, 9, 3663, https://doi.org/10.1021/j100346a058 . [all data]

Li, Ross, et al., 1996
Li, C.; Ross, P.; Szulejko, J.; McMahon, T.B., High-Pressure Mass Spectrometric Investigations of the Potential Energy Surfaces of Gas-Phase Sn2 Reactions., J. Am. Chem. Soc., 1996, 118, 39, 9360, https://doi.org/10.1021/ja960565o . [all data]

Workman and Squires, 1988
Workman, D.B.; Squires, R.R., Hydride Binding Energies of Boranes, Inorg. Chem., 1988, 27, 11, 1846, https://doi.org/10.1021/ic00284a003 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Ion clustering data, References

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
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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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