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Benzene, 1,2,4,5-tetramethyl-

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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:
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
B - John E. Bartmess

Quantity Value Units Method Reference Comment
IE (evaluated)8.06 ± 0.03eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
<0.048 ± 0.017ECDWojnarovits and Foldiak, 1981EA is an upper limit: Chen and Wentworth, 1989. G3MP2B3 calculations indicate an EA of ca. -0.1 eV, anion unbound.; B

Ionization energy determinations

IE (eV) Method Reference Comment
8.07PESantiago, Gandour, et al., 1978LLK
8.50 ± 0.05EIMeyer and Harrison, 1964RDSH
8.025 ± 0.005PIWatanabe, Nakayama, et al., 1962RDSH
8.03PIBralsford, Harris, et al., 1960RDSH
8.2CTSFoster, 1959RDSH
8.37CTSBriegleb and Czekalla, 1959RDSH
8.05 ± 0.02PIVilesov and Terenin, 1957RDSH
8.05PEHowell, Goncalves, et al., 1984Vertical value; LBLHLM
8.13PECabelli, Cowley, et al., 1982Vertical value; LBLHLM
8.05PEBock and Kaim, 1978Vertical value; LLK


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.

Wojnarovits and Foldiak, 1981
Wojnarovits, L.; Foldiak, G., Electron capture detection of aromatic hydrocarbons, J. Chromatogr. Sci., 1981, 206, 511. [all data]

Chen and Wentworth, 1989
Chen, E.C.M.; Wentworth, W.E., Experimental Determination of Electron Affinities of Organic Molecules, Mol. Cryst. Liq. Cryst., 1989, 171, 271. [all data]

Santiago, Gandour, et al., 1978
Santiago, C.; Gandour, R.W.; Houk, K.N.; Nutakul, W.; Cravey, W.E.; Thummel, R.P., Photoelectron and ultraviolet spectra of small-ring fused aromatic molecules as probes of aromatic ring distortions, J. Am. Chem. Soc., 1978, 100, 3730. [all data]

Meyer and Harrison, 1964
Meyer, F.; Harrison, A.G., Ionization potentials of methyl-substituted benzenes and cyclopentadienes, Can. J. Chem., 1964, 42, 2256. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Bralsford, Harris, et al., 1960
Bralsford, R.; Harris, P.V.; Price, W.C., The effect of fluorine on the electronic spectra and ionization potentials of molecules, Proc. Roy. Soc. (London), 1960, A258, 459. [all data]

Foster, 1959
Foster, R., Ionization potentials of electron donors, Nature (London), 1959, 183, 1253. [all data]

Briegleb and Czekalla, 1959
Briegleb, G.; Czekalla, J., Die Bestimmung von lonisierungsenergien aus den Spektren von Elektronenubergangskomplexen, Z.Elektrochem., 1959, 63, 6. [all data]

Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N., The photoionization of the vapors of certain organic compounds, Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]

Howell, Goncalves, et al., 1984
Howell, J.O.; Goncalves, J.M.; Amatore, C.; Klasinc, L.; Wightman, R.M.; Kochi, J.K., Electron transfer from aromatic hydrocarbons and their «pi»-complexes with metals. Comparison of the standard oxidation potentials and vertical ionization potentials, J. Am. Chem. Soc., 1984, 106, 3968. [all data]

Cabelli, Cowley, et al., 1982
Cabelli, D.E.; Cowley, A.H.; Lagowski, J.J., The bonding in some bis(arene)chromium compounds as indicated by U. V. photoelectron zpectroscopy, Inorg. Chim. Acta, 1982, 57, 195. [all data]

Bock and Kaim, 1978
Bock, H.; Kaim, W., Einelektronen-Oxidationen (H3C)3SiCH2-substituierter Benzole in der Gasphase und in Losung, Chem. Ber., 1978, 111, 3552. [all data]


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