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Triphenylmethane

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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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
8.34 ± 0.03PIRodionov, Potapov, et al., 1973LLK
8.34 ± 0.04PIPotapov, Kardash, et al., 1972LLK
8.40 ± 0.05PEDistefano, Pignataro, et al., 1976Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C13H11+10.9C6H5PIRodionov, Potapov, et al., 1973LLK

De-protonation reactions

C19H15- + Hydrogen cation = Triphenylmethane

By formula: C19H15- + H+ = C19H16

Quantity Value Units Method Reference Comment
Deltar358.7 ± 2.2kcal/molG+TSTaft and Bordwell, 1988gas phase; B
Deltar360.8 ± 2.5kcal/molG+TSBartmessgas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Deltar350.7 ± 2.0kcal/molIMRETaft and Bordwell, 1988gas phase; B
Deltar352.8 ± 2.3kcal/molIMREBartmessgas phase; value altered from reference due to change in acidity scale; B

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.

Rodionov, Potapov, et al., 1973
Rodionov, A.N.; Potapov, V.K.; Rogozhin, K.L., Photoionization of certain aromatic heteroorganic compounds, High Energy Chem., 1973, 7, 249, In original 278. [all data]

Potapov, Kardash, et al., 1972
Potapov, V.K.; Kardash, I.E.; Sorokin, V.V.; Sokolov, S.A.; Evlasheva, T.I., Photoionization of heteroaromatic compounds, Khim. Vys. Energ., 1972, 6, 392. [all data]

Distefano, Pignataro, et al., 1976
Distefano, G.; Pignataro, S.; Szepes, L.; Borossay, J., Photoelectron spectroscopy study of the triphenyl derivatives of the group IV elements, J. Organomet. Chem., 1976, 104, 173. [all data]

Taft and Bordwell, 1988
Taft, R.W.; Bordwell, F.G., Structural and Solvent Effects Evaluated from Acidities Measured in Dimethyl Sulfoxide and in the Gas Phase, Acc. Chem. Res., 1988, 21, 12, 463, https://doi.org/10.1021/ar00156a005 . [all data]

Bartmess
Bartmess, J.E., The Gas Phase Thermochemistry of Ph3C-, Ph3C., and Ph3C+, 32nd Ann. Conf. on Mass Spectrom. Allied Topics, San Antonio TX 27 May-1 June 1984. Abstracts p. 472. [all data]


Notes

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