CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference
Hfg(298.15K)	-1615.00	0.80	kJ mol^-1	CODATA
Hfg(0K)	-1609.49	0.80	kJ mol^-1	CODATA
Entropy (298.15K)	282.76	0.50	J K^-1 mol^-1	CODATA
Integrated Heat Capacity (0 to 298.15K)	15.36	0.05	kJ mol^-1	CODATA
Heat Capacity (298.15K)	73.62		J K^-1 mol^-1	Gurvich

Mode Number	Symmetry	Frequency			Intensity			Comment	Description
Mode Number	Symmetry	Fundamental(cm^-1)	Harmonic(cm^-1)	Reference	(km mol^-1)	unc.	Reference	Comment	Description
1	A₁	800		Shim					sym stretch
2	E	268		Shim					deg. deform
3	T₂	1032		Shim					deg. stretch
4	T₂	389		Shim					deg. deform

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rSiF	1.554		1	2			1983Tak/Kuz:2204	derived from B0
aFSiF	109.4712		2	1	3			symmetry

Atom	x (Å)	y (Å)	z (Å)
Si1	0.0000	0.0000	0.0000
F2	0.8972	0.8972	0.8972
F3	-0.8972	-0.8972	0.8972
F4	-0.8972	0.8972	-0.8972
F5	0.8972	-0.8972	-0.8972

	Si1	F2	F3	F4	F5
Si1		1.5540	1.5540	1.5540	1.5540
F2	1.5540		2.5377	2.5377	2.5377
F3	1.5540	2.5377		2.5377	2.5377
F4	1.5540	2.5377	2.5377		2.5377
F5	1.5540	2.5377	2.5377	2.5377

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
F2	Si1	F3	109.471	F2	Si1	F4	109.471
F2	Si1	F5	109.471	F3	Si1	F4	109.471
F3	Si1	F5	109.471	F4	Si1	F5	109.471

State	Config	State description	Conf description	Exp. min.	Dipole (Debye)				Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	x	y	z	total	Reference	comment	Point Group	dipole	quadrupole
1	1	¹A₁	T_d	True				0.000	NSRDS-NBS10		T_d	0	0

squib	reference	DOI
1983Tak/Kuz:2204	Takami, M.; Kuze, H. "Infrared-microwave double resonance spectroscopy of the SiF4 (nu)3 fundamental using a tunable diode laser." Journal of Chemical Physics. 78, 2204-2209 (1983)	10.1063/1.445063
1998Gus/Rui:163	M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215	10.1016/S0022-2860(97)00292-5
CODATA	Cox, J.D.; Wagman, D.D.; Medvedev, V.A.CODATA Key Values for Thermodynamics. Hemisphere, New York, 1989	10.1002/bbpc.19900940121
Gurvich	Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989
NSRDS-NBS10	R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967	10.6028/NBS.NSRDS.10
Shim	Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu	10.6028/NBS.NSRDS.39
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)	10.18434/T4D303

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Experimental data for SiF4 (Silicon tetrafluoride)

Experimental data for SiF₄ (Silicon tetrafluoride)