silicon fluoride


Gas 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.

Quantity Value Units Method Reference Comment
Δfgas-4.799kcal/molReviewChase, 1998Data last reviewed in December, 1976
Quantity Value Units Method Reference Comment
gas,1 bar53.951cal/mol*KReviewChase, 1998Data last reviewed in December, 1976

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 8.458571
B 0.515452
C -0.131606
D 0.013661
E -0.076078
F -7.598500
G 63.61150
H -4.799960
ReferenceChase, 1998
Comment Data last reviewed in December, 1976

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:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to FSi+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
0.810 ± 0.020LPESKawamata, Neigishi, et al., 1996Vertical Detachment Energy: 0.81±0.05 eV.; B
>1.14009IMRBReents, Mandich, et al., 1986Si- + WF6 -> SiF- + WF5; B

Ionization energy determinations

IE (eV) Method Reference Comment
7.54 ± 0.16ENDWeber and Armentrout, 1988LL
7.28EVALHuber and Herzberg, 1979LLK
7.26SJohns and Barrow, 1958RDSH

References

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]

Reents, Mandich, et al., 1986
Reents, W.D.; Mandich, M.L.; Bondebey, V.E., Reaction of Anionic and Cationic Silicon Clusters with Tungsten Hexafluoride Studied by Fourier Transform Mass Spectrometry, Chem. Phys. Lett., 1986, 131, 1-2, 1, https://doi.org/10.1016/0009-2614(86)80507-3 . [all data]

Weber and Armentrout, 1988
Weber, M.E.; Armentrout, P.B., Energetics and dynamics in the reaction of Si+ with SiF4. Thermochemistry of SiFx and SiFx+ (x=1,2,3), J. Chem. Phys., 1988, 11, 6898. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Johns and Barrow, 1958
Johns, J.W.C.; Barrow, R.F., The band spectrum of silicon monofluoride, SiF, Proc. Phys. Soc. (London), 1958, 71, 476. [all data]


Notes

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