HCNH+

• Formula: CH₂N⁺
• Molecular weight: 28.0327
• CAS Registry Number: 38263-97-7
• Information on this page:
  • Reaction thermochemistry data
  • Ion clustering data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Options:
  • Switch to calorie-based units

Reaction thermochemistry data

Go To: Top, Ion clustering data, Vibrational and/or electronic energy levels, 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: 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.

Individual Reactions

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + H₂O = (CH₂N⁺ • H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

Free energy of reaction

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + CHN = (CH₂N⁺ • CHN)

(CH₂N⁺ •  • ) +  = (CH₂N⁺ • 2 • )

By formula: (CH₂N⁺ • CHN • H₂O) + CHN = (CH₂N⁺ • 2CHN • H₂O)

(CH₂N⁺ •  • ) +  = (CH₂N⁺ • 2 • )

By formula: (CH₂N⁺ • H₂O • CHN) + H₂O = (CH₂N⁺ • 2H₂O • CHN)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ • ) +  = (CH₂N⁺ •  • )

By formula: (CH₂N⁺ • CHN) + H₂O = (CH₂N⁺ • H₂O • CHN)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2N₂) + N₂ = (CH₂N⁺ • 3N₂)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2H₂O) + H₂O = (CH₂N⁺ • 3H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ • 3) +  = (CH₂N⁺ • 4)

By formula: (CH₂N⁺ • 3N₂) + N₂ = (CH₂N⁺ • 4N₂)

(CH₂N⁺ • 4) +  = (CH₂N⁺ • 5)

By formula: (CH₂N⁺ • 4N₂) + N₂ = (CH₂N⁺ • 5N₂)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • H₂O) + H₂O = (CH₂N⁺ • 2H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + CH₂O = (CH₂N⁺ • CH₂O)

Bond type: Hydrogen bonds of the type NH+-O between organics

(CH₂N⁺ • 2) +  = (CH₂N⁺ •  • 2)

By formula: (CH₂N⁺ • 2H₂O) + CHN = (CH₂N⁺ • CHN • 2H₂O)

(CH₂N⁺ • ) +  = (CH₂N⁺ •  • )

By formula: (CH₂N⁺ • H₂O) + CHN = (CH₂N⁺ • CHN • H₂O)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • N₂) + N₂ = (CH₂N⁺ • 2N₂)

(CH₂N⁺ • 3) +  = (CH₂N⁺ • 4)

By formula: (CH₂N⁺ • 3CHN) + CHN = (CH₂N⁺ • 4CHN)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2CHN) + CHN = (CH₂N⁺ • 3CHN)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • CHN) + CHN = (CH₂N⁺ • 2CHN)

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + N₂ = (CH₂N⁺ • N₂)

Ion clustering data

Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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: 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

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + CHN = (CH₂N⁺ • CHN)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • CHN) + CHN = (CH₂N⁺ • 2CHN)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2CHN) + CHN = (CH₂N⁺ • 3CHN)

(CH₂N⁺ • 3) +  = (CH₂N⁺ • 4)

By formula: (CH₂N⁺ • 3CHN) + CHN = (CH₂N⁺ • 4CHN)

(CH₂N⁺ • ) +  = (CH₂N⁺ •  • )

By formula: (CH₂N⁺ • CHN) + H₂O = (CH₂N⁺ • H₂O • CHN)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ •  • ) +  = (CH₂N⁺ • 2 • )

By formula: (CH₂N⁺ • CHN • H₂O) + CHN = (CH₂N⁺ • 2CHN • H₂O)

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + CH₂O = (CH₂N⁺ • CH₂O)

Bond type: Hydrogen bonds of the type NH+-O between organics

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + H₂O = (CH₂N⁺ • H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

Free energy of reaction

(CH₂N⁺ • ) +  = (CH₂N⁺ •  • )

By formula: (CH₂N⁺ • H₂O) + CHN = (CH₂N⁺ • CHN • H₂O)

(CH₂N⁺ • 2) +  = (CH₂N⁺ •  • 2)

By formula: (CH₂N⁺ • 2H₂O) + CHN = (CH₂N⁺ • CHN • 2H₂O)

(CH₂N⁺ •  • ) +  = (CH₂N⁺ • 2 • )

By formula: (CH₂N⁺ • H₂O • CHN) + H₂O = (CH₂N⁺ • 2H₂O • CHN)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • H₂O) + H₂O = (CH₂N⁺ • 2H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2H₂O) + H₂O = (CH₂N⁺ • 3H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

CH₂N⁺ +  = (CH₂N⁺ • )

By formula: CH₂N⁺ + N₂ = (CH₂N⁺ • N₂)

(CH₂N⁺ • ) +  = (CH₂N⁺ • 2)

By formula: (CH₂N⁺ • N₂) + N₂ = (CH₂N⁺ • 2N₂)

(CH₂N⁺ • 2) +  = (CH₂N⁺ • 3)

By formula: (CH₂N⁺ • 2N₂) + N₂ = (CH₂N⁺ • 3N₂)

(CH₂N⁺ • 3) +  = (CH₂N⁺ • 4)

By formula: (CH₂N⁺ • 3N₂) + N₂ = (CH₂N⁺ • 4N₂)

(CH₂N⁺ • 4) +  = (CH₂N⁺ • 5)

By formula: (CH₂N⁺ • 4N₂) + N₂ = (CH₂N⁺ • 5N₂)

Vibrational and/or electronic energy levels

Go To: Top, Reaction thermochemistry data, 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: Marilyn E. Jacox

State:   X

Additional references: Jacox, 1994, page 138; Jacox, 2003, page 170; Bogey, Demuynck, et al., 1985; Amano and Tanaka, 1986; Araki, Ozeki, et al., 1998; Amano, Hashimoto, et al., 2006

References

Go To: Top, Reaction thermochemistry data, Ion clustering data, Vibrational and/or electronic energy levels, Notes

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

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]

Berman and Beauchamp, 1980
Berman, D.W.; Beauchamp, J.L., A Novel Bimolecular Reaction Sequence Yielding H(OH2)2+ at Low Pressures. Ion Cyclotron Resonance Studies of the Reaction of Doubly Solvated Protons, J. Phys. Chem., 1980, 84, 18, 2233, https://doi.org/10.1021/j100455a004 . [all data]

Lias, Liebman, et al., 1984
Lias, S.G.; Liebman, J.F.; Levin, R.D., Evaluated gas phase basicities and proton affinities of molecules heats of formation of protonated molecules, J. Phys. Chem. Ref. Data, 1984, 13, 695. [all data]

Fehsenfeld, Dotan, et al., 1978
Fehsenfeld, F.C.; Dotan, I.; Albritton, D.L.; Howard, C.J.; Ferguson, E.E., Stratospheric Positive Ion Chemistry of Formaldehyde and Methanol, J. Geophys. Res., 1978, 83, C3, 1333, https://doi.org/10.1029/JC083iC03p01333 . [all data]

Meot-Ner (Mautner), 1992
Meot-Ner (Mautner), M., Intermolecular Forces in Organic Clusters, J. Am. Chem. Soc., 1992, 114, 9, 3312, https://doi.org/10.1021/ja00035a024 . [all data]

Speller and Meot-Ner (Mautner), 1985
Speller, C.V.; Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites, J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020 . [all data]

Meot-Ner (Mautner), 1978
Meot-Ner (Mautner), M., Solvation of the Proton by HCN and CH3CN. Condensation of HCN with Ions in the Gas Phase., J. Am. Chem. Soc., 1978, 100, 15, 4694, https://doi.org/10.1021/ja00483a012 . [all data]

Speller, Fitaire, et al., 1982
Speller, C.V.; Fitaire, M.; Pointu, A.M., H2CN+.nN2 Clustering Formation and the Atmosphere of Titan, Nature, 1982, 300, 5892, 507, https://doi.org/10.1038/300507a0 . [all data]

Tanaka, Mackay, et al., 1978
Tanaka, K.; Mackay, G.I.; Bohme, D.K., Rate and Equilibrium Constant Measurements for Gas-Phase Proton-Transfer Reactions Involving H2O, H2S, HCN, and H2CO, Can. J. Chem., 1978, 56, 2, 193, https://doi.org/10.1139/v78-031 . [all data]

Altman, Crofton, et al., 1984
Altman, R.S.; Crofton, M.W.; Oka, T., Observation of the infrared ν2 band (CH stretch) of protonated hydrogen cyanide HCNH+, J. Chem. Phys., 1984, 80, 8, 3911, https://doi.org/10.1063/1.447173 . [all data]

Altman, Crofton, et al., 1984, 2
Altman, R.S.; Crofton, M.W.; Oka, T., High resolution infrared spectroscopy of the ν1 (NH stretch) and ν2 (CH stretch) bands of HCNH+, J. Chem. Phys., 1984, 81, 10, 4255, https://doi.org/10.1063/1.447433 . [all data]

Kajita, Kawaguchi, et al., 1988
Kajita, M.; Kawaguchi, K.; Hirota, E., Diode laser spectroscopy of the ν3 (CN stretch) band of HCNH+, J. Mol. Spectrosc., 1988, 127, 1, 275, https://doi.org/10.1016/0022-2852(88)90026-4 . [all data]

Liu, Lee, et al., 1988
Liu, D.-J.; Lee, S.-T.; Oka, T., The ν3 fundamental band of HCNH+ and the 2ν3 ← ν3 and ν2 + ν3 ← ν2 hot bands of HCO+, J. Mol. Spectrosc., 1988, 128, 1, 236, https://doi.org/10.1016/0022-2852(88)90221-4 . [all data]

Tanaka, Kawaguchi, et al., 1986
Tanaka, K.; Kawaguchi, K.; Hirota, E., Diode laser spectroscopy of the ν4 (HCN bend) band of HCNH+, J. Mol. Spectrosc., 1986, 117, 2, 408, https://doi.org/10.1016/0022-2852(86)90164-5 . [all data]

Ho, Blom, et al., 1987
Ho, W.-C.; Blom, C.E.; Liu, D.-J.; Oka, T., The infrared ν5 band (HNC bend) of protonated hydrogen cyanide, HCNH+, J. Mol. Spectrosc., 1987, 123, 1, 251, https://doi.org/10.1016/0022-2852(87)90275-X . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Bogey, Demuynck, et al., 1985
Bogey, M.; Demuynck, C.; Destombes, J.L., Millimeter and submillimeter wave spectrum of HCNH+, J. Chem. Phys., 1985, 83, 7, 3703, https://doi.org/10.1063/1.449126 . [all data]

Amano and Tanaka, 1986
Amano, T.; Tanaka, K., Difference frequency laser spectroscopy of HCNH+: Observation of the isotopic species and the hot bands, J. Mol. Spectrosc., 1986, 116, 1, 112, https://doi.org/10.1016/0022-2852(86)90257-2 . [all data]

Araki, Ozeki, et al., 1998
Araki, M.; Ozeki, H.; Saito, S., Laboratory Measurement of the Pure Rotational Transitions of HCNH[TSUP]+[/TSUP] and Its Isotopic Species, Astrophys. J., 1998, 496, 1, L53, https://doi.org/10.1086/311245 . [all data]

Amano, Hashimoto, et al., 2006
Amano, T.; Hashimoto, K.; Hirao, T., Submillimeter-wave spectroscopy of HCNH+ and CH3CNH+, J. Mol. Struct., 2006, 795, 1-3, 190, https://doi.org/10.1016/j.molstruc.2006.02.035 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Ion clustering data, Vibrational and/or electronic energy levels, 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.