Silane


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

H3Si- + Hydrogen cation = Silane

By formula: H3Si- + H+ = H4Si

Quantity Value Units Method Reference Comment
Δr1564. ± 8.8kJ/molG+TSGal, Decouzon, et al., 2001gas phase
Δr1560. ± 8.8kJ/molG+TSWetzel, Salomon, et al., 1989gas phase; value altered from reference due to change in acidity scale
Δr1559.8 ± 3.5kJ/molD-EANimlos and Ellison, 1986gas phase
Δr1556. ± 8.8kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale
Δr1564.4kJ/molN/ACheck, Faust, et al., 2001gas phase; MnS-(t); ; ΔS(EA)=5.7
Quantity Value Units Method Reference Comment
Δr1530. ± 8.4kJ/molIMREGal, Decouzon, et al., 2001gas phase
Δr1526. ± 8.4kJ/molIMREWetzel, Salomon, et al., 1989gas phase; value altered from reference due to change in acidity scale
Δr1525.4 ± 3.9kJ/molH-TSNimlos and Ellison, 1986gas phase
Δr1522. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale
Δr1533.0kJ/molN/ACheck, Faust, et al., 2001gas phase; MnS-(t); ; ΔS(EA)=5.7

Hydrogen anion + Silane = (Hydrogen anion • Silane)

By formula: H- + H4Si = (H- • H4Si)

Quantity Value Units Method Reference Comment
Δr79. ± 17.kJ/molIMRBHajdasz, Ho, et al., 1994gas phase
Δr94. ± 19.kJ/molIMREHajdasz and Squires, 1986gas phase; QCISD Calculation: H-A = 20.2, 99MOC
Quantity Value Units Method Reference Comment
Δr49. ± 17.kJ/molIMRBHajdasz, Ho, et al., 1994gas phase

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
NIST MS number 39

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References

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), 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]

Nimlos and Ellison, 1986
Nimlos, M.R.; Ellison, G.B., Photoelectron spectroscopy of SiH3- and SiD3-, J. Am. Chem. Soc., 1986, 108, 6522. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Hajdasz, Ho, et al., 1994
Hajdasz, D.J.; Ho, Y.; Squires, R.R., Gas-Phase Chemistry of Pentacoordinate Silicon Hydrides, J. Am. Chem. Soc., 1994, 116, 23, 10751, https://doi.org/10.1021/ja00102a045 . [all data]

Hajdasz and Squires, 1986
Hajdasz, D.J.; Squires, R.R., Hypervalent silicon hydrides: SiH5-, J. Am. Chem. Soc., 1986, 108, 3139. [all data]


Notes

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