Hydrazine, methyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase ion energetics data

Go To: Top, References, Notes

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
L - 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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman

Quantity Value Units Method Reference Comment
IE (evaluated)7.7 ± 0.15eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)898.8kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity866.4kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.7 ± 0.15EQMautner(Meot-Ner), Nelsen, et al., 1984LBLHLM
8.67PEBodor, Dewar, et al., 1970RDSH
8.00 ± 0.06PIAkopyan and Vilesov, 1963RDSH
7.67 ± 0.02PIAkopyan, Vilesov, et al., 1963RDSH
8.6 ± 0.1EIDibeler, Franklin, et al., 1959RDSH
8.40 ± 0.05PEVovna, Vilesov, et al., 1975Vertical value; LLK
9.34PERademacher, 1975Vertical value; LLK
9.36PEKimura, Katsumata, et al., 1975Vertical value; LLK
9.32PENelsen and Buschek, 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
N2H?+13.3 ± 0.3?EIDibeler, Franklin, et al., 1959RDSH
N2H2?+11.2 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
N2?+13.2 ± 0.3?EIDibeler, Franklin, et al., 1959RDSH
CH2N2+15.2 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
CH3+14.1 ± 0.3?EIDibeler, Franklin, et al., 1959RDSH
CH3N2+9.2 ± 0.2H2+HPIAkopyan and Vilesov, 1963RDSH
CH3N2+11.9 ± 0.3H2+HEIDibeler, Franklin, et al., 1959RDSH
CH4N2+9.9 ± 0.1H2EIFoner and Hudson, 1970RDSH
CH4N2+9.4 ± 0.1H2PIAkopyan and Vilesov, 1963RDSH
CH4N2+10.4 ± 0.2H2EIDibeler, Franklin, et al., 1959RDSH
CH5N+11.3 ± 0.1NHPIAkopyan and Vilesov, 1963RDSH
CH5N2+10.2 ± 0.1HEIFoner and Hudson, 1970RDSH
CH5N2+9.2 ± 0.1HPIAkopyan and Vilesov, 1963RDSH
CH5N2+10.2 ± 0.1HEIDibeler, Franklin, et al., 1959RDSH
N2H3+9.82CH3EIBurgers, Drewello, et al., 1989LL
N2H3+9.5 ± 0.1CH3PIAkopyan and Vilesov, 1963RDSH
N2H3+10.7 ± 0.3CH3EIDibeler, Franklin, et al., 1959RDSH


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.

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]

Mautner(Meot-Ner), Nelsen, et al., 1984
Mautner(Meot-Ner), M.; Nelsen, S.F.; Willi, M.R.; Frigo, T.B., Special effects of an unusually large neutral to radical cation geometry change. Adiabatic ionization energies and proton affinities of alkylhydrazines, J. Am. Chem. Soc., 1984, 106, 7384. [all data]

Bodor, Dewar, et al., 1970
Bodor, N.; Dewar, M.J.S.; Jennings, W.B.; Worley, S.D., Photoelectron spectra of molecules-IV.Ionization potentials and heats of formation of some hydrazines and amines, Tetrahedron, 1970, 26, 4109. [all data]

Akopyan and Vilesov, 1963
Akopyan, M.E.; Vilesov, F.I., Decay of the molecular ions formed in photoionization of hydrazine and some of its alkyl derivatives, Kinetika i Kataliz, 1963, 4, 39, In original 32. [all data]

Akopyan, Vilesov, et al., 1963
Akopyan, M.E.; Vilesov, F.I.; Terenin, A.N., Mass spectrometric investigation of photoionization of molecules and dissociation of excited molecular ions, Izv. Akad. Nauk SSSR, Ser. Fiz., 1963, 27, 1083, In original 1054. [all data]

Dibeler, Franklin, et al., 1959
Dibeler, V.H.; Franklin, J.L.; Reese, R.M., Electron impact studies of hydrazine and the methyl-substituted hydrazines, J. Am. Chem. Soc., 1959, 81, 68. [all data]

Vovna, Vilesov, et al., 1975
Vovna, V.I.; Vilesov, F.I.; Lopatin, S.N., Photoelectron spectra of hydrazine and some alkyl derivatives, Opt. Spectrosc., 1975, 38, 143. [all data]

Rademacher, 1975
Rademacher, P., Acyclische Hydrazine, Chem. Ber., 1975, 108, 1548. [all data]

Kimura, Katsumata, et al., 1975
Kimura, K.; Katsumata, S.; Osafune, K., Photoelectron spectroscopic study of skew compounds. Methylhydrazine and unsymmetrical dimethylhydrazine, Bull. Chem. Soc. Jpn., 1975, 48, 2736. [all data]

Nelsen and Buschek, 1974
Nelsen, S.F.; Buschek, J.M., Photoelectron spectra of hydrazines. III. Evidence for similar lone pair-lone pair dihedral angles for acyclic hydrazines, J. Am. Chem. Soc., 1974, 96, 2392. [all data]

Foner and Hudson, 1970
Foner, S.N.; Hudson, R.L., Mass spectrometric studies of atom-molecule reactions using high-intensity crossed molecular beams, J. Chem. Phys., 1970, 53, 4377. [all data]

Burgers, Drewello, et al., 1989
Burgers, P.C.; Drewello, T.; Schwarz, H.; Terlouw, J.K., CH5N2 hydrazyl radicals, cations and dication radicals studied by mass spectrometry. Is the N-protonated formaldehyde hydrazon cation +CH2-NH-NH2 a bridged species?, Int. J. Mass Spectrom. Ion Processes, 1989, 95, 157. [all data]


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