CN anion

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

Gas phase ion energetics data

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

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

Data compiled by: John E. Bartmess

Protonation reactions

CN^- +  =

By formula: CN^- + H⁺ = CHN

Ion clustering data

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

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

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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. 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)

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

By formula: CN^- + CHN = (CN^- • CHN)

(CN^- • ) +  = (CN^- • 2)

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

(CN^- • 2) +  = (CN^- • 3)

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

(CN^- • 3) +  = (CN^- • 4)

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

(CN^- • 4) +  = (CN^- • 5)

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

(CN^- • 5) +  = (CN^- • 6)

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

(CN^- • 6) +  = (CN^- • 7)

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

Free energy of reaction

(CN^- • ) +  = (CN^- •  • )

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

(CN^- • 2) +  = (CN^- •  • 2)

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

(CN^- • 3) +  = (CN^- •  • 3)

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

Free energy of reaction

(CN^- •  • ) +  = (CN^- • 2 • )

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

(CN^- •  • 2) +  = (CN^- • 2 • 2)

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

Free energy of reaction

(CN^- • 2 • ) +  = (CN^- • 3 • )

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

Free energy of reaction

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

By formula: CN^- + CO₂ = (CN^- • CO₂)

CN^- + C₂F₄O = (CN^- • C₂F₄O)

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- + C₃F₆O = (CN^- • C₃F₆O)

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- + C₄H₄F₆O = (CN^- • C₄H₄F₆O)

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

By formula: CN^- + F₃P = (CN^- • F₃P)

CN^- +  = (CN^- • )

By formula: CN^- + F₄S = (CN^- • F₄S)

CN^- +  = (CN^- • )

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

CN^- +  = (CN^- • )

By formula: CN^- + H₂O = (CN^- • H₂O)

(CN^- • 3) +  = (CN^- •  • 3)

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

Free energy of reaction

(CN^- •  • ) +  = (CN^- • 2 • )

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

(CN^- •  • 2) +  = (CN^- • 2 • 2)

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

Free energy of reaction

(CN^- • 2 • ) +  = (CN^- • 3 • )

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

(CN^- • ) +  = (CN^- • 2)

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

(CN^- • 2) +  = (CN^- • 3)

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

(CN^- • 3) +  = (CN^- • 4)

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

Free energy of reaction

CN^- +  = (CN^- • )

By formula: CN^- + H₂S = (CN^- • H₂S)

CN^- +  = (CN^- • )

By formula: CN^- + H₃B = (CN^- • H₃B)

CN^- +  = (CN^- • )

By formula: CN^- + O₂S = (CN^- • O₂S)

References

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

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

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]

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, Gas phase ion energetics data, Ion clustering data, References

• Symbols used in this document:
  

  T	Temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.