CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference
Hfg(298.15K)	-569.92	4.00	kJ mol^-1	Gurvich
Hfg(0K)	-566.50	4.00	kJ mol^-1	Gurvich
Entropy (298.15K)	260.90		J K^-1 mol^-1	Gurvich
Integrated Heat Capacity (0 to 298.15K)	13.87		kJ mol^-1	Gurvich
Heat Capacity (298.15K)	58.13		J K^-1 mol^-1	Gurvich

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rFF	2.780		2	4			1998Kuc	r0 value
aHFF	117		3	2	4		1998Kuc
aHFF	10		1	4	2		1998Kuc

Bond Type	Count
H-F	2
H..F	1

Atom 1	Atom 2
H1	F2
H1	F4
F2	H3

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	¹A_g	C_s	True							C_s	2	3

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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squib	reference	DOI
1998Kuc	K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998	10.1007/978-3-642-45748-7
Gurvich	Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989

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Experimental data for H2F2 (Hydrogen fluoride dimer)

Experimental data for H₂F₂ (Hydrogen fluoride dimer)