Trifluorosilane


Gas phase ion energetics data

Go To: Top, Vibrational and/or electronic energy levels, References, Notes

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
11. ± 1.EIFarber and Srivastava, 1977LLK
14.0PECradock, Ebsworth, et al., 1973LLK
14.48 ± 0.05PEDemuth, 1977Vertical value; LLK
14.48 ± 0.02PECradock, Ebsworth, et al., 1973Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
SiHF2+13.4 ± 0.3FEISharp and Margrave, 1969RDSH

De-protonation reactions

F3Si- + Hydrogen cation = Trifluorosilane

By formula: F3Si- + H+ = HF3Si

Quantity Value Units Method Reference Comment
Δr358.1 ± 5.2kcal/molD-EAKawamata, Neigishi, et al., 1996gas phase; Vertical Detachment Energy: 2.76±0.05 eV.; B
Quantity Value Units Method Reference Comment
Δr350.4 ± 5.3kcal/molH-TSKawamata, Neigishi, et al., 1996gas phase; Vertical Detachment Energy: 2.76±0.05 eV.; B

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics 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: Takehiko Shimanouchi

Symmetry:   C     Symmetry Number σ = 3


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 SiH str 2316  B 2315.6 M gas
a1 2 SiF3 s-str 858  B 858.25 S gas
a1 3 SiF3 s-deform 425  B 425.2 M gas
e 4 SiF3 d-str 998  B 997.83 VS gas
e 5 SiH bend 844  B 843.6 S gas
e 6 SiF3 d-deform 306  B 306.2 M gas

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
B1~3 cm-1 uncertainty

References

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes

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

Farber and Srivastava, 1977
Farber, M.; Srivastava, R.D., Mass spectrometric determination of the heats of formation of the silane fluorides, Chem. Phys. Lett., 1977, 51, 307. [all data]

Cradock, Ebsworth, et al., 1973
Cradock, S.; Ebsworth, E.A.V.; Whiteford, R.A., Photoelectron spectra of some simple fluorosilanes, J. Chem. Soc. Dalton Trans., 1973, 22, 2401. [all data]

Demuth, 1977
Demuth, R., Photoelektronenspektren von einigen Trihalogensilylphosphanen und -arsanen X3SiER2 (X = F, Cl; E = N, P, As; R = H, CH3), Z. Naturforsch. B:, 1977, 32, 1252. [all data]

Sharp and Margrave, 1969
Sharp, K.G.; Margrave, J.L., Silicon-fluorine chemistry. VII. The reaction of silicon difluoride with hydrogen sulfide, Inorg. Chem., 1969, 8, 2655. [all data]

Kawamata, Neigishi, et al., 1996
Kawamata, H.; Neigishi, Y.; Kishi, R.; Iwata, S.; Nakajima, A.; Kaya, K., Photoelectron Spectroscopy of Silicon-Fluorine Binary Cluster Anions (SinFm-), J. Chem. Phys., 1996, 105, 13, 5369, https://doi.org/10.1063/1.472377 . [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]


Notes

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References