Cyanomethylene
- Formula: C2HN
- Molecular weight: 39.0360
- IUPAC Standard InChI: InChI=1S/C2HN/c1-2-3/h1H
- IUPAC Standard InChIKey: SZICEGNEOSKVLO-UHFFFAOYSA-N
- CAS Registry Number: 2612-62-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: HCCN radical
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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 compiled by: John E. Bartmess
View reactions leading to C2HN+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.003 ± 0.014 | LPES | Nimlos, Davico, et al., 2002 | |
| 1.883 ± 0.013 | LPES | Nimlos, Davico, et al., 2002 | |
| 2.01 ± 0.34 | D-EA | Matimba, Crabbendam, et al., 1992 | |
| 1.93 ± 0.34 | D-EA | Grabowski and Melly, 1987 | Between H2O2 and mCl-toluene |
| 0.80 ± 0.40 | EIAE | Heni and Illenberger, 1986 | From MeCN |
| >1.09997 | EIAE | Tsuda, Yokohata, et al., 1971 | From MeCN. G3MP2B3 calculations indicate an EA of ca. 2.0 eV. |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Nimlos, Davico, et al., 2002
Nimlos, M.R.; Davico, G.; Geise, C.M.; Wenthold, P.G.; Lineberger, W.C.; Blanksby, S.J.; Hadad, C.M.; Petersso,
Photoelectron spectroscopy of HCCN- and HCNC- reveals the quasilinear triplet carbenes, HCCN and HCNC,
J. Chem. Phys., 2002, 117, 9, 4323-4339, https://doi.org/10.1063/1.1496473
. [all data]
Matimba, Crabbendam, et al., 1992
Matimba, H.E.K.; Crabbendam, A.M.; Ingemann, S.; Nibbering, N.M.M.,
Gas-phase Bimolecular Chemistry of the .-CHNC and .-CHCN Radical Anions,
Int. J. Mass Spectrom. Ion Proc., 1992, 114, 1-2, 85, https://doi.org/10.1016/0168-1176(92)85024-T
. [all data]
Grabowski and Melly, 1987
Grabowski, J.J.; Melly, S.J.,
Formation of carbene radical anions: Gas phase reaction of the atomic oxygen anion with organic neutrals,
Int. J. Mass Spectrom. Ion Processes, 1987, 81, 147. [all data]
Heni and Illenberger, 1986
Heni, M.; Illenberger, E.,
Electron attachment by saturated nitriles. Acrylonitrile (CH2H3CN), and benzonitrile (C6H5CN),
Int. J. Mass Spectrom. Ion Phys., 1986, 73, 127. [all data]
Tsuda, Yokohata, et al., 1971
Tsuda, S.; Yokohata, A.; Umaba, T.,
Measurement of negative ions formed by electron impact. VIII. Ionization efficiency curves of negative ions from methyl and ethyl cyanides,
Bull. Chem. Soc. Jpn., 1971, 44, 1486. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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