CN anion

• Formula: CN^-
• Molecular weight: 26.0179
• Information on this page:
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 66
  • Gas phase ion energetics data
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Ion clustering data

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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. 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
rH°	104. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	74. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	71. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	91. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
rH°	83.7 ± 8.4	kJ/mol	Est	Larson and McMahon, 1984	gas phase; B
rH°	86.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rH°	86.6	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M,B,B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	86.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	86.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
rS°	86.2	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
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
rG°	60.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
rG°	57.3 ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
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
rH°	68.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rH°	68.6	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	91.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	91.2	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
rS°	91.2	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	52.7	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rH°	52.7	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	88.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	88.7	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
rS°	88.7	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	45.6	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rH°	45.6	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M,B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	104.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	104.	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
rS°	104.	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	41. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
rH°	41.	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rS°	84.5	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	84.5	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	85.4	J/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
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
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
rG°	6.69	kJ/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B

Free energy of reaction

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
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
rS°	82.4	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	32. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	52.3	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
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
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
rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rG°	14. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

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
rH°	55.2	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	52.7	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

Free energy of reaction

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

Free energy of reaction

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
rH°	68. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	42.7 ± 4.2	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
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
rH°	94.6 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	65.7 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
rH°	69.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	96.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
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
rG°	36.8 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
rG°	43.5 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
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
rH°	72.4 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	132.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
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
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
rH°	78. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	92. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	100.4 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
rH°	103. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	130.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
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
rG°	63.18 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
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
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
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
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
rH°	57.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,M
rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
rH°	65.69	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	90.8	J/mol*K	PHPMS	Hiraoka, Mizure, et al., 1988	gas phase; M
rS°	59.4	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
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
rG°	40. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
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
rH°	88. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	70.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	72.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,M
rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	94.1	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
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
rG°	44.8 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
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
rH°	115. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
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
rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	105. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	85. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
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
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
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
rH°	62. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	69.9 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	110.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
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
rG°	37.7 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
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
rH°	82.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	108. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M,M
Quantity	Value	Units	Method	Reference	Comment
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
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
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
rH°	73. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	97.9 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,M
rH°	82. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	113.	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
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
rG°	64.0 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
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
rH°	66.5 ± 4.2	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
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
rH°	76. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	110.	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	120.	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M

CN^- +  = (CN^-  )

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

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

CN^- +  = (CN^-  )

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

Quantity	Value	Units	Method	Reference	Comment
rH°	150.2 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	120.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
rH°	66.1 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	98.3 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	64.0 ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	108. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	114. ± 4.2	kJ/mol	IMRE	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	53.1 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
rH°	61.1 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,B,M,M
rH°	57.74	kJ/mol	TDAs	Payzant, Yamdagni, et al., 1971	gas phase; B,M
rH°	61.1	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rS°	82.0	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	75.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
rS°	82.0	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
rS°	82.8	J/mol*K	HPMS	Payzant, Yamdagni, et al., 1971	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	30.5 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B
rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
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
rH°	54.8	kJ/mol	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M

Free energy of reaction

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
rH°	40. ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	73.2	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
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
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
rS°	84.	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
rG°	12. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

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
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
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
rH°	49.0 ± 4.2	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; B,M
rH°	49.0	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	75.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	75.7	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
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
rH°	44.8	kJ/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	82.8	J/mol*K	PHPMS	Meot-Ner (Mautner) and Speller, 1989	gas phase; n; M
rS°	82.8	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
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
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
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
rG°	16. ± 5.9	kJ/mol	TDAs	Meot-Ner (Mautner) M. and Speller, 1989	gas phase; Entropy estimated; B

Free energy of reaction

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
rH°	79.1 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988	gas phase; B
rH°	83. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
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
rG°	54.0 ± 4.2	kJ/mol	TDEq	Meot-ner, 1988	gas phase; B
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
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
rH°	90.8 ± 3.3	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	120.	J/mol*K	PHPMS	Larson, Szulejko, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	56.07 ± 0.84	kJ/mol	TDAs	Larson, Szulejko, et al., 1988	gas phase; B

References

Go To: Top, Ion clustering data, Notes

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

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]

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]

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 (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
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]

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]

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]

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

Meot-ner, 1988, 2
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]

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, Ion clustering data, References

• Symbols used in this document:
  

  T	Temperature
  rG°	Free energy of reaction at standard conditions
  rH°	Enthalpy of reaction at standard conditions
  rS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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