Silane, dimethylphenyl-

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Reaction thermochemistry 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 by: John E. Bartmess

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Individual Reactions

C8H11Si- + Hydrogen cation = Silane, dimethylphenyl-

By formula: C8H11Si- + H+ = C8H12Si

Quantity Value Units Method Reference Comment
Δr1582. ± 9.2kJ/molG+TSIrie, Kikukawa, et al., 2001gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB
Quantity Value Units Method Reference Comment
Δr1550. ± 8.4kJ/molIMREIrie, Kikukawa, et al., 2001gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB

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
8.92 ± 0.15EIGaidis, Briggs, et al., 1971LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C7H9Si+8.72CH3EIDube and Chvalovsky, 1974LLK
C8H11Si+10.43 ± 0.04HEIGaidis, Briggs, et al., 1971LLK

De-protonation reactions

C8H11Si- + Hydrogen cation = Silane, dimethylphenyl-

By formula: C8H11Si- + H+ = C8H12Si

Quantity Value Units Method Reference Comment
Δr1582. ± 9.2kJ/molG+TSIrie, Kikukawa, et al., 2001gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB; B
Quantity Value Units Method Reference Comment
Δr1550. ± 8.4kJ/molIMREIrie, Kikukawa, et al., 2001gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB; B

UV/Visible spectrum

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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 by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Lang (editor), 1967
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19163
Instrument Spektromom 201
Boiling point 157/ 744 mm

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Irie, Kikukawa, et al., 2001
Irie, M.; Kikukawa, K.; Shimizu, N.; Mishima, M., Gas-phase acidities of aryldimethylsilanes, J. Chem. Soc. Perkin Trans., 2001, 2, 6, 923-928, https://doi.org/10.1039/b100488n . [all data]

Gaidis, Briggs, et al., 1971
Gaidis, J.M.; Briggs, P.R.; Shannon, T.W., Mass spectra of disilanes. Phenyl-silicon interaction and silicon-silicon bond strength, J. Phys. Chem., 1971, 75, 974. [all data]

Dube and Chvalovsky, 1974
Dube, G.; Chvalovsky, V., Electron impact fragmentation of substituted phenyldimethylsilanes, Collect. Czech. Chem. Commun., 1974, 39, 2621. [all data]

Lang (editor), 1967
Lang (editor), L., Absorption Spectra in the Ultraviolet and Visible Region, 1967, 9, 183. [all data]


Notes

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