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Silane, difluorodimethyl-


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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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Individual Reactions

CN- + Silane, difluorodimethyl- = (CN- bullet Silane, difluorodimethyl-)

By formula: CN- + C2H6F2Si = (CN- bullet C2H6F2Si)

Quantity Value Units Method Reference Comment
Deltar70.3 ± 4.2kJ/molIMRELarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar130.J/mol*KN/ALarson, Szulejko, et al., 1988gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M

C2H5F2Si- + Hydrogen cation = Silane, difluorodimethyl-

By formula: C2H5F2Si- + H+ = C2H6F2Si

Quantity Value Units Method Reference Comment
Deltar1590. ± 19.kJ/molG+TSAllison and McMahon, 1990gas phase; Between PhCH3, HCF3; B
Quantity Value Units Method Reference Comment
Deltar1554. ± 19.kJ/molIMRBAllison and McMahon, 1990gas phase; Between PhCH3, HCF3; B

Fluorine anion + Silane, difluorodimethyl- = (Fluorine anion bullet Silane, difluorodimethyl-)

By formula: F- + C2H6F2Si = (F- bullet C2H6F2Si)

Quantity Value Units Method Reference Comment
Deltar232. ± 21.kJ/molIMRBMurphy and Beauchamp, 1977gas phase; Fluoride Affinity: SF4<Me2SiF2<Me3B; B

References

Go To: Top, Reaction thermochemistry data, Notes

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

Larson, Szulejko, et al., 1988
Larson, J.W.; Szulejko, J.E.; McMahon, T.B., Gas Phase Lewis Acid-Base Interactions. An Experimental Determination of Cyanide Binding Energies From Ion Cyclotron Resonance and High-Pressure Mass Spectrometric Equilibrium Measurements., J. Am. Chem. Soc., 1988, 110, 23, 7604, https://doi.org/10.1021/ja00231a004 . [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO2-, NO3-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [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]

Murphy and Beauchamp, 1977
Murphy, M.K.; Beauchamp, J.L., Methyl and Fluorine Substituent Effects on the Gas Phase Lewis Acidities of Silanes by ICR Spectroscopy, J. Am. Chem. Soc., 1977, 99, 15, 4992, https://doi.org/10.1021/ja00457a017 . [all data]


Notes

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