Hydrogen isocyanide


Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to CHN+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)772.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity739.8kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
12.5 ± 0.1IMBBieri and Jonsson, 1978LLK

Vibrational and/or electronic energy levels

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 by: Marilyn E. Jacox

State:   A ?


 Energy 
 (cm-1
 Med.   Transition   λmin 
 (nm) 
 λmax 
 (nm) 
 References

To = 32850 gas A-X 250 305 Krishnamachari and Venkatasubramanian, 1986

State:   A


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

CN stretch 1005 gas UV Krishnamachari and Venkatasubramanian, 1986

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

Σ+ 1 NH stretch 3652.65 gas IR Arrington and Ogryzlo, 1975
Maki and Sams, 1981
Burkholder, Sinha, et al., 1987
Arunan, Manke, et al., 1993
Nezu, Amano, et al., 1998
He and Macdonald, 1999
Maki and Mellau, 2001
Mellau, 2010
1 NH stretch 3643.1 Ne IR Forney, Thompson, et al., 1992
1 NH stretch 3620 s Ar IR Milligan and Jacox, 1967
1 NH stretch 3583 vs Ar IR Milligan and Jacox, 1963
Milligan and Jacox, 1967
1 NH stretch 3598.6 Kr IR Pettersson, Lundell, et al., 1998
1 NH stretch 3577.0 Xe IR Pettersson, Lundell, et al., 1998
1 NH stretch 3567 s N2 IR Milligan and Jacox, 1967
Π 2 Bend 462.72 gas IR Burkholder, Sinha, et al., 1987
Maki and Mellau, 2001
2 Bend 477 s Ar IR Milligan and Jacox, 1967
2 Bend 535 s Ar IR Milligan and Jacox, 1963
2 Bend 478.2 Kr IR Pettersson, Lundell, et al., 1998
2 Bend 477.0 Xe IR Pettersson, Lundell, et al., 1998
2 Bend 559 s N2 IR Milligan and Jacox, 1967
Σ+ 3 NC stretch 2023.86 gas IR Burkholder, Sinha, et al., 1987
Nezu, Amano, et al., 1998
Maki and Mellau, 2001
3 NC stretch 2025.4 Ne IR Forney, Thompson, et al., 1992
3 NC stretch 2029 w Ar IR Milligan and Jacox, 1967
3 NC stretch 2032 w Ar IR Milligan and Jacox, 1963
3 NC stretch 2024.7 Kr IR Pettersson, Lundell, et al., 1998
3 NC stretch 2021.0 Xe IR Pettersson, Lundell, et al., 1998
3 NC stretch 2035 w N2 IR Milligan and Jacox, 1967

Additional references: Jacox, 1994, page 38; Jacox, 1998, page 145; Jacox, 2003, page 33; Pearson, Creswell, et al., 1976; Creswell and Robiette, 1978; Woods, 1988; Okabayashi and Tanimoto, 1993; Northrup, Bethardy, et al., 1997; Thorwirth, Muller, et al., 2000; Amano and Zelinger, 2002

Notes

wWeak
sStrong
vsVery strong
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Gas phase ion energetics 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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Bieri and Jonsson, 1978
Bieri, G.; Jonsson, B.-O., HNC+ radical cation studied by charge-exchange mass spectrometry, Chem. Phys. Lett., 1978, 56, 446. [all data]

Krishnamachari and Venkatasubramanian, 1986
Krishnamachari, S.L.N.G.; Venkatasubramanian, R., Electronic Absorption Spectra of HNC and DNC, Spectrosc. Lett., 1986, 19, 1, 55, https://doi.org/10.1080/00387018608069219 . [all data]

Arrington and Ogryzlo, 1975
Arrington, C.A.; Ogryzlo, E.A., Infrared emission from gaseous HNC, J. Chem. Phys., 1975, 63, 8, 3670, https://doi.org/10.1063/1.431764 . [all data]

Maki and Sams, 1981
Maki, A.G.; Sams, R.L., High temperature, high resolution infrared spectral measurements on the HNC--HCN equilibrium system, J. Chem. Phys., 1981, 75, 9, 4178, https://doi.org/10.1063/1.442645 . [all data]

Burkholder, Sinha, et al., 1987
Burkholder, J.B.; Sinha, A.; Hammer, P.D.; Howard, C.J., High-resolution Fourier transform infrared spectroscopy of the fundamental bands of HNC, J. Mol. Spectrosc., 1987, 126, 1, 72, https://doi.org/10.1016/0022-2852(87)90077-4 . [all data]

Arunan, Manke, et al., 1993
Arunan, E.; Manke, G., II; Setser, D.W., Infrared chemiluminescence studies of H + BrCN and H abstraction by CN reactions. Importance of the HNC channel, Chem. Phys. Lett., 1993, 207, 1, 81, https://doi.org/10.1016/0009-2614(93)85015-G . [all data]

Nezu, Amano, et al., 1998
Nezu, M.; Amano, T.; Kawaguchi, K., Transition Dipole Moments for the Vibrational Fundamentals of HNC Determined from the Herman--Wallis Effect, J. Mol. Spectrosc., 1998, 192, 1, 41, https://doi.org/10.1006/jmsp.1998.7661 . [all data]

He and Macdonald, 1999
He, G.; Macdonald, R.G., Experimental determination of the υ1 fundamental vibrational transition moment for HNC, Chem. Phys. Lett., 1999, 301, 1-2, 175, https://doi.org/10.1016/S0009-2614(98)01445-6 . [all data]

Maki and Mellau, 2001
Maki, A.G.; Mellau, G.Ch., High-Temperature Infrared Emission Measurements on HNC, J. Mol. Spectrosc., 2001, 206, 1, 47, https://doi.org/10.1006/jmsp.2000.8279 . [all data]

Mellau, 2010
Mellau, G.Ch., The band system of HNC, J. Mol. Spectrosc., 2010, 264, 1, 2, https://doi.org/10.1016/j.jms.2010.08.001 . [all data]

Forney, Thompson, et al., 1992
Forney, D.; Thompson, W.E.; Jacox, M.E., The vibrational spectra of molecular ions isolated in solid neon. IX. HCN+, HNC+, and CN-, J. Chem. Phys., 1992, 97, 3, 1664, https://doi.org/10.1063/1.463963 . [all data]

Milligan and Jacox, 1967
Milligan, D.E.; Jacox, M.E., Spectroscopic Study of the Vacuum-Ultraviolet Photolysis of Matrix-Isolated HCN and Halogen Cyanides. Infrared Spectra of the Species CN and XNC, J. Chem. Phys., 1967, 47, 1, 278, https://doi.org/10.1063/1.1711859 . [all data]

Milligan and Jacox, 1963
Milligan, D.E.; Jacox, M.E., Infrared Spectroscopic Evidence for the Species HNC, J. Chem. Phys., 1963, 39, 3, 712, https://doi.org/10.1063/1.1734312 . [all data]

Pettersson, Lundell, et al., 1998
Pettersson, M.; Lundell, J.; Khriachtchev, L.; Rasanen, M., Neutral rare-gas containing charge-transfer molecules in solid matrices. III. HXeCN, HXeNC, and HKrCN in Kr and Xe, J. Chem. Phys., 1998, 109, 2, 618, https://doi.org/10.1063/1.476599 . [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, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [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]

Pearson, Creswell, et al., 1976
Pearson, E.F.; Creswell, R.A.; Winnewisser, M.; Winnewisser, G., Z. Naturforsch., 1976, 31a, 1394. [all data]

Creswell and Robiette, 1978
Creswell, R.A.; Robiette, A.G., On the anharmonic force field and equilibrium structure of HNC, Mol. Phys., 1978, 36, 3, 869, https://doi.org/10.1080/00268977800101991 . [all data]

Woods, 1988
Woods, R.C., Microwave Spectroscopy of Molecular Ions in the Laboratory and in Space [and Discussion], Phil. Trans. Roy. Soc. (London) A324, 1988, 324, 1578, 141, https://doi.org/10.1098/rsta.1988.0007 . [all data]

Okabayashi and Tanimoto, 1993
Okabayashi, T.; Tanimoto, M., Millimeter and submillimeter wave spectroscopy of HNC and DNC in the vibrationally excited states, J. Chem. Phys., 1993, 99, 5, 3268, https://doi.org/10.1063/1.465135 . [all data]

Northrup, Bethardy, et al., 1997
Northrup, F.J.; Bethardy, G.A.; Macdonald, R.G., Infrared Absorption Spectroscopy of HNC in the Region 2.6 to 3.1 μm, J. Mol. Spectrosc., 1997, 186, 2, 349, https://doi.org/10.1006/jmsp.1997.7464 . [all data]

Thorwirth, Muller, et al., 2000
Thorwirth, S.; Muller, H.S.P.; Lewen, F.; Gendriesch, R.; Winnewisser, G., Astron. Astrophys., 2000, 363, L37. [all data]

Amano and Zelinger, 2002
Amano, T.; Zelinger, Z., Submillimeter-Wave Spectroscopy of HNC Produced in an Extended Negative Glow Discharge, J. Mol. Spectrosc., 2002, 211, 2, 273, https://doi.org/10.1006/jmsp.2001.8508 . [all data]


Notes

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References