Silane, methylenebis[trimethyl-

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Condensed phase 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: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
liquid515.9J/mol*KN/AGuseinov and Karasharli, 1982 
liquid515.89J/mol*KN/AGuseinov, Karasharli, et al., 1975 

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
357.5298.15Guseinov and Karasharli, 1982T = 12 to 300 K.
357.52298.15Guseinov, Karasharli, et al., 1975T = 10 to 300 K. Data given graphically.

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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C7H19Si2- + Hydrogen cation = Silane, methylenebis[trimethyl-

By formula: C7H19Si2- + H+ = C7H20Si2

Quantity Value Units Method Reference Comment
Δr1563. ± 9.2kJ/molG+TSRomer, Gatev, et al., 1998gas phase
Δr1563. ± 17.kJ/molD-EABrinkman, Berger, et al., 1994gas phase
Quantity Value Units Method Reference Comment
Δr1531. ± 8.4kJ/molIMRERomer, Gatev, et al., 1998gas phase
Δr1531. ± 17.kJ/molH-TSBrinkman, Berger, et al., 1994gas phase

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
9.5PEHosomi and Traylor, 1975Vertical value; LLK

De-protonation reactions

C7H19Si2- + Hydrogen cation = Silane, methylenebis[trimethyl-

By formula: C7H19Si2- + H+ = C7H20Si2

Quantity Value Units Method Reference Comment
Δr1563. ± 9.2kJ/molG+TSRomer, Gatev, et al., 1998gas phase; B
Δr1563. ± 17.kJ/molD-EABrinkman, Berger, et al., 1994gas phase; B
Quantity Value Units Method Reference Comment
Δr1531. ± 8.4kJ/molIMRERomer, Gatev, et al., 1998gas phase; B
Δr1531. ± 17.kJ/molH-TSBrinkman, Berger, et al., 1994gas phase; B

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, 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.

Guseinov and Karasharli, 1982
Guseinov, Z.A.; Karasharli, K.A., Heat capacity and thermodynamic functions of hexamethyldisilylmethane, Azerb. Khim. Zhur., 1982, (4), 107-109. [all data]

Guseinov, Karasharli, et al., 1975
Guseinov, Z.A.; Karasharli, K.A.; Dzhafarov, O.I.; Nurullaev, G.G.; Nametkin, N.S.; Gusel'nikov, L.E.; Volnina, F.A.; Burdasov, E.N.; Vdovin, V.M., Thermodynamic parameters of some cyclic and bridging carbosilanes, Dokl.Akad. Nauk, 1975, SSSR 222, 1369-1372. [all data]

Romer, Gatev, et al., 1998
Romer, B.; Gatev, G.G.; Zhong, M.; Brauman, J.I., Alpha-Stabilization by Silyl and Phosphino Substitution, J. Am. Chem. Soc., 1998, 120, 12, 2919, https://doi.org/10.1021/ja970279s . [all data]

Brinkman, Berger, et al., 1994
Brinkman, E.A.; Berger, S.; Brauman, J.I., alpha-Silyl-substituent stabilization of carbanions and silyl anions, J. Am. Chem. Soc., 1994, 116, 18, 8304, https://doi.org/10.1021/ja00097a042 . [all data]

Hosomi and Traylor, 1975
Hosomi, A.; Traylor, T.G., Studies of interactions of adjacent carbon-metal σ bonds by photoelectron spectroscopy, J. Am. Chem. Soc., 1975, 97, 3682. [all data]


Notes

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