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Trimethylsilyl fluoride


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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
10.31 ± 0.04PIMurphy and Beauchamp, 1977LLK
10.55 ± 0.06EIHess, Lampe, et al., 1965RDSH
11.0PERoberge, Sandorfy, et al., 1978Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H6FSi+10.70 ± 0.04CH3PIMurphy and Beauchamp, 1977LLK
C2H6FSi+11.11 ± 0.05CH3EIHess, Lampe, et al., 1965RDSH
C3H9Si+11.7 ± 0.5F-?EIHess, Lampe, et al., 1965RDSH

De-protonation reactions

C3H8FSi- + Hydrogen cation = Trimethylsilyl fluoride

By formula: C3H8FSi- + H+ = C3H9FSi

Quantity Value Units Method Reference Comment
Deltar1625. ± 20.kJ/molG+TSAllison and McMahon, 1990gas phase; Between H2O, HO.; B
Quantity Value Units Method Reference Comment
Deltar1591. ± 19.kJ/molIMRBAllison and McMahon, 1990gas phase; Between H2O, HO.; 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.

Murphy and Beauchamp, 1977
Murphy, M.K.; Beauchamp, J.L., Photoionization mass spectrometry of the fluoromethylsilanes (CH3)n F4-nSi (n = 1-4), J. Am. Chem. Soc., 1977, 99, 2085. [all data]

Hess, Lampe, et al., 1965
Hess, G.G.; Lampe, F.W.; Sommer, L.H., An electron impact study of ionization and dissociation of trimethylsilanes, J. Am. Chem. Soc., 1965, 87, 5327. [all data]

Roberge, Sandorfy, et al., 1978
Roberge, R.; Sandorfy, C.; Matthews, J.I.; Strausz, O.P., The far ultraviolet HeI photoelectron spectra of alkyl and fluorine substituted silane derivatives, J. Chem. Phys., 1978, 69, 5105. [all data]

Allison and McMahon, 1990
Allison, C.E.; McMahon, T.B., How Strong is the Si=C Bond in Fluoro- and Methyl Substituted Silaethylenes? An Experimental Determination of Pi Bond Strengths, J. Am. Chem. Soc., 1990, 112, 5, 1672, https://doi.org/10.1021/ja00161a002 . [all data]


Notes

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