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
Δr12.70 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr14.6 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B,B,M,M
Δr13.80kcal/molTDAsPayzant, Yamdagni, et al., 1971gas phase; B,M
Δr14.6kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr19.6cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr18.cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr19.6cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr19.6cal/mol*KPHPMSMeot-ner, 1988gas phase; M
Δr19.8cal/mol*KHPMSPayzant, Yamdagni, et al., 1971gas phase; M
Quantity Value Units Method Reference Comment
Δr7.30 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr8.7 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr8.7 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B
Δr7.90kcal/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
Δr21.7 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Δr20.0 ± 2.0kcal/molEstLarson and McMahon, 1984gas phase; B
Δr20.7kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr20.7kcal/molPHPMSMeot-ner, 1988, 2gas phase; M,B,B,M
Quantity Value Units Method Reference Comment
Δr20.6cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr20.6cal/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr20.6cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr26.9cal/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
Δr14.5 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr13.7 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Δr14.5 ± 1.6kcal/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B

CN- + Acetonitrile = (CN- • Acetonitrile)

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

Quantity Value Units Method Reference Comment
Δr13.8 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr16.4 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Δr15.70kcal/molTDAsHiraoka, Mizure, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr21.7cal/mol*KPHPMSHiraoka, Mizure, et al., 1988gas phase; M
Δr14.2cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr24.3cal/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
Δr9.5 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr9.1 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Δr9.20kcal/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
Δr15.70 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr16.6 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr16.5 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr24.3cal/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
Δr8.80 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr10.4 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr9.2 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Hydrogen cation = Hydrogen cyanide

By formula: CN- + H+ = CHN

Quantity Value Units Method Reference Comment
Δr349.8 ± 1.0kcal/molCIDTAkin and Ervin, 2006gas phase; B
Δr350.50 ± 0.17kcal/molD-EABradforth, Kim, et al., 1993gas phase; B
Δr351.1 ± 2.1kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr342.5 ± 1.1kcal/molH-TSAkin and Ervin, 2006gas phase; B
Δr343.17 ± 0.27kcal/molH-TSBradforth, Kim, et al., 1993gas phase; B
Δr343.8 ± 2.0kcal/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
Δr10.7 ± 1.0kcal/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
Δr10.7kcal/molPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr19.8cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr19.8cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr7.8 ± 1.4kcal/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
Δr16.70 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr18.1 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr24.8cal/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
Δr9.00 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr10.7 ± 2.3kcal/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
Δr24.00 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Δr24.6 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Δr26.1cal/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
Δr15.10 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B
Δr16.4 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Pyrrole = (CN- • Pyrrole)

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

Quantity Value Units Method Reference Comment
Δr23.4 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr19.5 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr27.1cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr23.8cal/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
Δr15.3 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr12.3 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Ethanol = (CN- • Ethanol)

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

Quantity Value Units Method Reference Comment
Δr17.4 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B,M
Δr17.4 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.5cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Δr24.5cal/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
Δr10.7 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B
Δr10.0 ± 2.3kcal/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
Δr18.4kcal/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
Δr24.8cal/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
Δr11.0kcal/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
Δr23.5kcal/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
Δr26.0cal/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
Δr15.8kcal/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
Δr25.7 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M,M
Quantity Value Units Method Reference Comment
Δr26.4cal/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Δr26.4cal/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
Δr17.8 ± 2.3kcal/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
Δr18.9 ± 1.0kcal/molTDEqMeot-ner, 1988, 2gas phase; B
Δr19.8 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.8cal/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
Δr12.9 ± 1.0kcal/molTDEqMeot-ner, 1988, 2gas phase; B
Δr12.4 ± 2.3kcal/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
Δr9.8 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AMeot-Ner (Mautner) and Speller, 1989gas phase; n, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr3.8 ± 1.4kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.6262.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
Δr7.6 ± 1.0kcal/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AMeot-ner, Cybulski, et al., 1988gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr1.60kcal/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.0238.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
Δr12.6kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr12.6kcal/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr21.2cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr21.2cal/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr21.2cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr6.30kcal/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
Δr10.9kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr10.9kcal/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr24.8cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr24.8cal/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr24.8cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr3.50kcal/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
Δr16.4kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr16.4kcal/molPHPMSMeot-ner, 1988, 2gas phase; M,B,M
Quantity Value Units Method Reference Comment
Δr21.8cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr21.8cal/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Δr21.8cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr9.90kcal/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
Δr8.9 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr2.9 ± 1.4kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7262.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
Δr9.4 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B,M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr3.4 ± 1.4kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; Entropy estimated; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.2262.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
Δr9.8 ± 1.0kcal/molTDAsMeot-ner, Cybulski, et al., 1988gas phase; B,M
Δr9.8kcal/molPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr20.2cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr20.2cal/mol*KPHPMSMeot-ner, Cybulski, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr3.80kcal/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
Δr11.7 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Δr11.7kcal/molPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr18.1cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Δr18.1cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr6.3 ± 1.4kcal/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
Δr35.cal/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
Δr35.cal/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
Δr23.5 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr14.60 ± 0.50kcal/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
Δr18.7 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.9cal/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
Δr11.3 ± 2.3kcal/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
Δr25.8 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr16.90 ± 0.50kcal/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
Δr27.2 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr18.30 ± 0.50kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M

CN- + trifluoroarsine = (CN- • trifluoroarsine)

By formula: CN- + AsF3 = (CN- • AsF3)

Quantity Value Units Method Reference Comment
Δr24.9 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr28.cal/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
Δr16.60 ± 0.50kcal/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
Δr15.8 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr6.90 ± 0.50kcal/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
Δr15.3 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr6.40 ± 0.50kcal/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
Δr21.1 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.5cal/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
Δr13.5 ± 2.3kcal/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
Δr19.6 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr35.cal/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
Δr10.70 ± 0.50kcal/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
Δr22.0 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.cal/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
Δr15.1 ± 2.3kcal/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
Δr23.5 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr35.cal/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
Δr13.10 ± 0.50kcal/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
Δr20.4 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.3cal/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
Δr12.9 ± 2.3kcal/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
Δr22.6 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr13.70 ± 0.50kcal/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
Δr20.4 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.3cal/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
Δr12.9 ± 2.3kcal/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
Δr25.8 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.4cal/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
Δr17.9 ± 2.3kcal/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
Δr17.4 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.5cal/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
Δr10.0 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Trichloromethane = (CN- • Trichloromethane)

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

Quantity Value Units Method Reference Comment
Δr18.2 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.8cal/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
Δr10.8 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Fluorodichloromethane = (CN- • Fluorodichloromethane)

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

Quantity Value Units Method Reference Comment
Δr17.8 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.7cal/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
Δr10.4 ± 2.3kcal/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
Δr18.1 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.8cal/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
Δr10.7 ± 2.3kcal/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
Δr25.0 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.cal/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
Δr16.8 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Acetone = (CN- • Acetone)

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

Quantity Value Units Method Reference Comment
Δr14.7 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.5cal/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
Δr8.0 ± 2.3kcal/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
Δr16.3 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.2cal/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
Δr9.0 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

CN- + Fluoroform = (CN- • Fluoroform)

By formula: CN- + CHF3 = (CN- • CHF3)

Quantity Value Units Method Reference Comment
Δr17.0 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.4cal/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
Δr9.6 ± 2.3kcal/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
Δr16.8 ± 1.0kcal/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr30.cal/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
Δr9.5 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr17.5cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr4.2 ± 1.4kcal/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
Δr7.7 ± 1.0kcal/molTDAsMeot-Ner (Mautner) M. and Speller, 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr12.5cal/mol*KPHPMSMeot-Ner (Mautner) and Speller, 1989gas phase; n; M
Quantity Value Units Method Reference Comment
Δr4.0 ± 1.4kcal/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