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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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

Quantity Value Units Method Reference Comment
IE (evaluated)7.321 ± 0.001eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)963.4kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity934.6kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.321155 ± 0.000005SBoogaarts, Holleman, et al., 1996LL
7.197 ± 0.001SSmith, Hager, et al., 1984LBLHLM
7.20PIParker and El-Sayed, 1979LLK
7.52 ± 0.02PEAue, Webb, et al., 1976Vertical value; LLK
7.61PENelsen and Buschek, 1974Vertical value; LLK
7.609PENelsen and Buschek, 1974, 2Vertical value; LLK
7.70PEHamada, Hirakawa, et al., 1973Vertical value; LLK
7.52PEHeilbronner and Muszkat, 1970Vertical value; RDSH
7.52PEBischof, Hashmall, et al., 1969Vertical value; RDSH


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, . [all data]

Boogaarts, Holleman, et al., 1996
Boogaarts, M.G.H.; Holleman, I.; Jongma, R.T.; Parker, D.H.; Meijer, G.; Even, U., High Rydberg states of DABCO: Spectroscopy, ionization potential, and comparison with mass analyzed threshold ionization, J. Chem. Phys., 1996, 104, 4357. [all data]

Smith, Hager, et al., 1984
Smith, M.A.; Hager, J.W.; Wallace, S.C., Two-color laser photoionization spectroscopy in a collisionless free-jet expansion: Spectroscopy and excited-state dynamics of diazabicyclooctane, J. Phys. Chem., 1984, 88, 2250. [all data]

Parker and El-Sayed, 1979
Parker, D.H.; El-Sayed, M.A., Determination of excited state lifetimes and ionization potentials by dual beam visible lasars, Chem. Phys., 1979, 42, 379. [all data]

Aue, Webb, et al., 1976
Aue, D.H.; Webb, H.M.; Bowers, M.T., Quantitative proton affinities, ionization potentials, and hydrogen affinities of alkylamines, J. Am. Chem. Soc., 1976, 98, 311. [all data]

Nelsen and Buschek, 1974
Nelsen, S.F.; Buschek, J.M., Photoelectron spectra of some cyclic di- and polyamines. Lone pair-lone pair interaction in 1,3- and 1,4-diamines, J. Am. Chem. Soc., 1974, 96, 7930. [all data]

Nelsen and Buschek, 1974, 2
Nelsen, S.F.; Buschek, J.M., Charge delocalization in saturated systems. The radical cation of 1,3,6,8-tetraazatricyclo[,8]dodecane, J. Am. Chem. Soc., 1974, 96, 6424. [all data]

Hamada, Hirakawa, et al., 1973
Hamada, Y.; Hirakawa, A.Y.; Tsuboi, M.; Ogata, H., Interaction between lone pair electrons on the nitrogen atoms in 1,5-diazabicyclo[3.2.1]octane, Bull. Chem. Soc. Jpn., 1973, 46, 2244. [all data]

Heilbronner and Muszkat, 1970
Heilbronner, E.; Muszkat, K.A., On the relative importance of through-space vs. through-bond interaction between the lone pairs in 1,4-diazabicyclo[2.2.2.]octane, J. Am. Chem. Soc., 1970, 92, 3818. [all data]

Bischof, Hashmall, et al., 1969
Bischof, P.; Hashmall, J.A.; Heilbronner, E.; Hornung, V., Nitrogen lone pair interaction in 1,4-diaza-bicyclo[2.2.2]octane (DABCO), Tetrahedron Lett., 1969, 4025. [all data]


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