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PhSiH2 anion


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

C6H7Si- + Hydrogen cation = Silane, phenyl-

By formula: C6H7Si- + H+ = C6H8Si

Quantity Value Units Method Reference Comment
Deltar1545. ± 8.8kJ/molG+TSGal, Decouzon, et al., 2001gas phase
Deltar1540. ± 8.8kJ/molG+TSWetzel, Salomon, et al., 1989gas phase; 1.2 kcal/mol stronger than tBuCH(iPr)OH; value altered from reference due to change in acidity scale
Deltar1543. ± 13.kJ/molD-EAWetzel, Salomon, et al., 1989gas phase; D-EA cycle give BDE=87.7±2.2 kcal/mol
Deltar1551. ± 17.kJ/molG+TSDamrauer, Kass, et al., 1988gas phase; Between HF and acetone
Quantity Value Units Method Reference Comment
Deltar1515. ± 8.4kJ/molIMREGal, Decouzon, et al., 2001gas phase
Deltar1510. ± 8.4kJ/molIMREWetzel, Salomon, et al., 1989gas phase; 1.2 kcal/mol stronger than tBuCH(iPr)OH; value altered from reference due to change in acidity scale
Deltar1513. ± 13.kJ/molH-TSWetzel, Salomon, et al., 1989gas phase; D-EA cycle give BDE=87.7±2.2 kcal/mol
Deltar1521. ± 17.kJ/molIMRBDamrauer, Kass, et al., 1988gas phase; Between HF and acetone

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, References, Notes

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

Protonation reactions

C6H7Si- + Hydrogen cation = Silane, phenyl-

By formula: C6H7Si- + H+ = C6H8Si

Quantity Value Units Method Reference Comment
Deltar1545. ± 8.8kJ/molG+TSGal, Decouzon, et al., 2001gas phase
Deltar1540. ± 8.8kJ/molG+TSWetzel, Salomon, et al., 1989gas phase; 1.2 kcal/mol stronger than tBuCH(iPr)OH; value altered from reference due to change in acidity scale
Deltar1543. ± 13.kJ/molD-EAWetzel, Salomon, et al., 1989gas phase; D-EA cycle give BDE=87.7±2.2 kcal/mol
Deltar1551. ± 17.kJ/molG+TSDamrauer, Kass, et al., 1988gas phase; Between HF and acetone
Quantity Value Units Method Reference Comment
Deltar1515. ± 8.4kJ/molIMREGal, Decouzon, et al., 2001gas phase
Deltar1510. ± 8.4kJ/molIMREWetzel, Salomon, et al., 1989gas phase; 1.2 kcal/mol stronger than tBuCH(iPr)OH; value altered from reference due to change in acidity scale
Deltar1513. ± 13.kJ/molH-TSWetzel, Salomon, et al., 1989gas phase; D-EA cycle give BDE=87.7±2.2 kcal/mol
Deltar1521. ± 17.kJ/molIMRBDamrauer, Kass, et al., 1988gas phase; Between HF and acetone

References

Go To: Top, 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.

Gal, Decouzon, et al., 2001
Gal, J.F.; Decouzon, M.; Maria, P.C.; Gonzalez, A.I.; Mo, O.; Yanez, M.; El Chaouch, S.; Guillemin, J.C., Acidity trends in alpha,beta-unsaturated alkanes, silanes, germanes, and stannanes, J. Am. Chem. Soc., 2001, 123, 26, 6353-6359, https://doi.org/10.1021/ja004079j . [all data]

Wetzel, Salomon, et al., 1989
Wetzel, D.M.; Salomon, K.E.; Berger, S.; Brauman, J.I., Gas-Phase Acidities of Organosilanes and Electron Affinities of Organosilyl Radicals, J. Am. Chem. Soc., 1989, 111, 11, 3835, https://doi.org/10.1021/ja00193a013 . [all data]

Damrauer, Kass, et al., 1988
Damrauer, R.; Kass, S.R.; DePuy, C.H., Gas-Phase Acidities of Methylsilanes: C-H versus Si-H, Organomet., 1988, 7, 3, 637, https://doi.org/10.1021/om00093a011 . [all data]


Notes

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