CN anion


Reaction thermochemistry 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. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Reactions 1 to 50

CN- + Water = (CN- • Water)

By formula: CN- + H2O = (CN- • H2O)

Quantity Value Units Method Reference Comment
Δr53.1 ± 3.3kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr61.1 ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B,B,M,M
Δr57.74kJ/molTDAsPayzant, Yamdagni, et al., 1971gas phase; B,M
Δr61.1kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr82.0J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr75.J/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr82.0J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr82.0J/mol*KPHPMSMeot-ner, 1988gas phase; M
Δr82.8J/mol*KHPMSPayzant, Yamdagni, et al., 1971gas phase; M
Quantity Value Units Method Reference Comment
Δr30.5 ± 0.84kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr36. ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr36. ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B
Δr33.1kJ/molTDAsPayzant, Yamdagni, et al., 1971gas phase; B

CN- + Hydrogen cyanide = (CN- • Hydrogen cyanide)

By formula: CN- + CHN = (CN- • CHN)

Quantity Value Units Method Reference Comment
Δr91. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Δr83.7 ± 8.4kJ/molEstLarson and McMahon, 1984gas phase; B
Δr86.6kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr86.6kJ/molPHPMSMeot-ner, 1988, 2gas phase; M,B,B,M
Quantity Value Units Method Reference Comment
Δr86.2J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr86.2J/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr86.2J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr113.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(H2O), Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr60.7 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr57.3 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Δr60.7 ± 6.7kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

CN- + Acetonitrile = (CN- • Acetonitrile)

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

Quantity Value Units Method Reference Comment
Δr57.7 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr69. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Δr65.69kJ/molTDAsHiraoka, Mizure, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr90.8J/mol*KPHPMSHiraoka, Mizure, et al., 1988gas phase; M
Δr59.4J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr102.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr40. ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr38. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Δr38.5kJ/molTDAsHiraoka, Mizure, et al., 1988gas phase; B

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

By formula: CN- + CH4O = (CN- • CH4O)

Quantity Value Units Method Reference Comment
Δr65.7 ± 3.3kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr69.5 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr69. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr96.J/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr102.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr36.8 ± 0.84kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr43.5 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr38. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Hydrogen cation = Hydrogen cyanide

By formula: CN- + H+ = CHN

Quantity Value Units Method Reference Comment
Δr1464. ± 4.2kJ/molCIDTAkin and Ervin, 2006gas phase; B
Δr1466.5 ± 0.71kJ/molD-EABradforth, Kim, et al., 1993gas phase; B
Δr1469. ± 8.8kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1433. ± 4.6kJ/molH-TSAkin and Ervin, 2006gas phase; B
Δr1435.8 ± 1.1kJ/molH-TSBradforth, Kim, et al., 1993gas phase; B
Δr1438. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B

(CN- • 2Water) + Water = (CN- • 3Water)

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

Quantity Value Units Method Reference Comment
Δr44.8 ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B,M
Δr44.8kJ/molPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr82.8J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr82.8J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr33. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Stated EA is Vertical Detachment Energy, at 12 K. At 298 K, measured Vertical Detachment Energy = 5.50±0.10 eV; B

CN- + Isopropyl Alcohol = (CN- • Isopropyl Alcohol)

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

Quantity Value Units Method Reference Comment
Δr69.9 ± 3.3kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr76. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr104.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr37.7 ± 0.84kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr44.8 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Ethanol, 2,2,2-trifluoro- = (CN- • Ethanol, 2,2,2-trifluoro-)

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

Quantity Value Units Method Reference Comment
Δr100.4 ± 3.3kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr103. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr109.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr63.18 ± 0.84kJ/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr68.6 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Pyrrole = (CN- • Pyrrole)

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

Quantity Value Units Method Reference Comment
Δr97.9 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr82. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr113.J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr99.6J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr64.0 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr51.5 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Ethanol = (CN- • Ethanol)

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

Quantity Value Units Method Reference Comment
Δr72.8 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr73. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr94.1J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr103.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr44.8 ± 4.2kJ/molTDAsMeot-ner, 1988, 2gas phase; B
Δr41.8 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + 1,1,2-Trifluoroethane = (CN- • 1,1,2-Trifluoroethane)

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

Quantity Value Units Method Reference Comment
Δr77.0kJ/molICRLarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr104.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr46.0kJ/molICRLarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN- + 1,3-Difluoro-2-propanol = (CN- • 1,3-Difluoro-2-propanol)

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

Quantity Value Units Method Reference Comment
Δr98.3kJ/molICRLarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr109.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr66.1kJ/molICRLarson and McMahon, 1987gas 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
Δr108. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M,M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δr110.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr74.5 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M,M

CN- + Hydrogen sulfide = (CN- • Hydrogen sulfide)

By formula: CN- + H2S = (CN- • H2S)

Quantity Value Units Method Reference Comment
Δr79.1 ± 4.2kJ/molTDEqMeot-ner, 1988, 2gas phase; B
Δr83. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr99.6J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.0 ± 4.2kJ/molTDEqMeot-ner, 1988, 2gas phase; B
Δr51.9 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

(CN- • 3Water) + Water = (CN- • 4Water)

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

Quantity Value Units Method Reference Comment
Δr41. ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/AMeot-Ner (Mautner) and Speller, 1989gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr16. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
19.262.PHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n, Entropy change calculated or estimated; M

(CN- • 6Hydrogen cyanide) + Hydrogen cyanide = (CN- • 7Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr32. ± 4.2kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/AMeot-ner, Cybulski, et al., 1988gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr6.69kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
13.238.PHPMSMeot-ner, Cybulski, et al., 1988gas phase; Entropy change calculated or estimated; M

(CN- • 2Hydrogen cyanide) + Hydrogen cyanide = (CN- • 3Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr52.7kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr52.7kJ/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr88.7J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr88.7J/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr88.7J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr26.4kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

(CN- • 3Hydrogen cyanide) + Hydrogen cyanide = (CN- • 4Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr45.6kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr45.6kJ/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr104.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr104.J/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr104.J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr14.6kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

(CN- • Hydrogen cyanide) + Hydrogen cyanide = (CN- • 2Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr68.6kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr68.6kJ/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr91.2J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr91.2J/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr91.2J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr41.4kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

(CN- • Water • 2Hydrogen cyanide) + Water = (CN- • 2Water • 2Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr37. ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr12. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
15.262.PHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M

(CN- • 3Hydrogen cyanide) + Water = (CN- • Water • 3Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr39. ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr14. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
18.262.PHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M

(CN- • 4Hydrogen cyanide) + Hydrogen cyanide = (CN- • 5Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr41. ± 4.2kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B,M
Δr41.kJ/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr84.5J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr84.5J/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr15.9kJ/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

(CN- • Water) + Water = (CN- • 2Water)

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

Quantity Value Units Method Reference Comment
Δr49.0 ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Δr49.0kJ/molPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr75.7J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr75.7J/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr26. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B

CN- + C2F4O = (CN- • C2F4O)

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

Quantity Value Units Method Reference Comment
Δr150.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δr150.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

CN- + Phosphoryl fluoride = (CN- • Phosphoryl fluoride)

By formula: CN- + F3OP = (CN- • F3OP)

Quantity Value Units Method Reference Comment
Δr98.3 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr61.1 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + Pentafluorodimethyl ether = (CN- • Pentafluorodimethyl ether)

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

Quantity Value Units Method Reference Comment
Δr78. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr104.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr47.3 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Sulfur tetrafluoride = (CN- • Sulfur tetrafluoride)

By formula: CN- + F4S = (CN- • F4S)

Quantity Value Units Method Reference Comment
Δr108. ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr70.7 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + Silicon tetrafluoride = (CN- • Silicon tetrafluoride)

By formula: CN- + F4Si = (CN- • F4Si)

Quantity Value Units Method Reference Comment
Δr114. ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr76.6 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + trifluoroarsine = (CN- • trifluoroarsine)

By formula: CN- + AsF3 = (CN- • AsF3)

Quantity Value Units Method Reference Comment
Δr104. ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr120.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr69.5 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + Thionyl fluoride = (CN- • Thionyl fluoride)

By formula: CN- + F2OS = (CN- • F2OS)

Quantity Value Units Method Reference Comment
Δr66.1 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr28.9 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + Phosphorus trifluoride = (CN- • Phosphorus trifluoride)

By formula: CN- + F3P = (CN- • F3P)

Quantity Value Units Method Reference Comment
Δr64.0 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr26.8 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + 2-Chloroethanol = (CN- • 2-Chloroethanol)

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

Quantity Value Units Method Reference Comment
Δr88. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr107.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr56.5 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Boric acid, trimethyl ester = (CN- • Boric acid, trimethyl ester)

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

Quantity Value Units Method Reference Comment
Δr82.0 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr150.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr44.8 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + 1,1,1',1'-Tetrafluorodimethyl ether = (CN- • 1,1,1',1'-Tetrafluorodimethyl ether)

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

Quantity Value Units Method Reference Comment
Δr92. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr63.2 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Carbonic difluoride = (CN- • Carbonic difluoride)

By formula: CN- + CF2O = (CN- • CF2O)

Quantity Value Units Method Reference Comment
Δr98.3 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr150.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.8 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + Ethanol, 2-fluoro- = (CN- • Ethanol, 2-fluoro-)

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

Quantity Value Units Method Reference Comment
Δr85. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr106.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.0 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Silane, trifluoromethyl- = (CN- • Silane, trifluoromethyl-)

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

Quantity Value Units Method Reference Comment
Δr94.6 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr57.3 ± 2.1kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + 2-Propanone, 1,1,1-trifluoro- = (CN- • 2-Propanone, 1,1,1-trifluoro-)

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

Quantity Value Units Method Reference Comment
Δr85. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr106.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.0 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + 2-Propanone, 1,1,1,3,3-pentafluoro- = (CN- • 2-Propanone, 1,1,1,3,3-pentafluoro-)

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

Quantity Value Units Method Reference Comment
Δr108. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr74.9 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Carbonocyanidic acid, ethyl ester = (CN- • Carbonocyanidic acid, ethyl ester)

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

Quantity Value Units Method Reference Comment
Δr73. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr41.8 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Trichloromethane = (CN- • Trichloromethane)

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

Quantity Value Units Method Reference Comment
Δr76. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr104.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr45.2 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Fluorodichloromethane = (CN- • Fluorodichloromethane)

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

Quantity Value Units Method Reference Comment
Δr74. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr43.5 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + 2-Propanol, 2-methyl- = (CN- • 2-Propanol, 2-methyl-)

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

Quantity Value Units Method Reference Comment
Δr76. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr104.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr44.8 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + 2-Propanol, 1,1,1,3,3,3-hexafluoro- = (CN- • 2-Propanol, 1,1,1,3,3,3-hexafluoro-)

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

Quantity Value Units Method Reference Comment
Δr105. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr70.3 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Acetone = (CN- • Acetone)

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

Quantity Value Units Method Reference Comment
Δr62. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr94.1J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr33. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Methylene chloride = (CN- • Methylene chloride)

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

Quantity Value Units Method Reference Comment
Δr68. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr101.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr38. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Fluoroform = (CN- • Fluoroform)

By formula: CN- + CHF3 = (CN- • CHF3)

Quantity Value Units Method Reference Comment
Δr71. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr102.J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr40. ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Silane, difluorodimethyl- = (CN- • Silane, difluorodimethyl-)

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

Quantity Value Units Method Reference Comment
Δr70.3 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

(CN- • Water • Hydrogen cyanide) + Water = (CN- • 2Water • Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr40. ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr73.2J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr18. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B

(CN- • 2Hydrogen cyanide) + Water = (CN- • Water • 2Hydrogen cyanide)

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

Quantity Value Units Method Reference Comment
Δr32. ± 4.2kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr52.3J/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr17. ± 5.9kJ/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B

References

Go To: Top, Reaction thermochemistry 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]

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]


Notes

Go To: Top, Reaction thermochemistry data, References