Ethyl isocyanide

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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

Ethyl isocyanide = Propanenitrile

By formula: C3H5N = C3H5N

Quantity Value Units Method Reference Comment
Δr-90.0 ± 4.2kJ/molCmBaghal-Vayjooee, Collister, et al., 1977gas phase; Heat of isomerization

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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C3H5N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)851.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity818.9kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.2 ± 0.25EIChess, Lapp, et al., 1982LBLHLM
11.38EIHeerma and deRidder, 1970RDSH
11.2 ± 0.1EIGillis and Occolowitz, 1963RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H2N+14.17CH3EIHeerma and deRidder, 1970RDSH
C2H4+12.83?EIHeerma and deRidder, 1970RDSH
C2H5+12.94CNEIHeerma and deRidder, 1970RDSH
C3H4N+12.51HEIHeerma and deRidder, 1970RDSH

References

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

Baghal-Vayjooee, Collister, et al., 1977
Baghal-Vayjooee, M.H.; Collister, J.L.; Pritchard, H.O., The enthalpy of isomerisation of methyl isocyanide, Can. J. Chem., 1977, 55, 2634-2636. [all data]

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]

Chess, Lapp, et al., 1982
Chess, E.K.; Lapp, R.L.; Gross, M.L., The question of tautomerism of alkylnitrile and isonitrile radical cations, Org. Mass Spectrom., 1982, 17, 475. [all data]

Heerma and deRidder, 1970
Heerma, W.; deRidder, J.J., The electron-impact induced fragmentation of some alkyl isocyanides and alpha-branched alkyl cyanides, Org. Mass Spectrom., 1970, 3, 1439. [all data]

Gillis and Occolowitz, 1963
Gillis, R.G.; Occolowitz, J.L., Isocyanides. III. Electron impact study of aliphatic isocyanides, J. Org. Chem., 1963, 28, 2924. [all data]


Notes

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