CCCBDB listing of experimental data page 2

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Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
aCCF	124.5	0.9	2	1	5		1976Hellwege(II/7)

Bond Type	Count
C-C	1
C=C	2
C-F	6

Atom 1	Atom 2
C1	C2
C1	F5
C1	F6
C2	C3
C2	F7
C3	C4
C3	F8
C4	F9
C4	F10

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_2h	False							C_2h	0	3
1	2	¹A	C₂	True							C₂	1	3

State	Config	State description	Conf description	Exp. min.	Quadrupole (D Å)			Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	xx	yy	zz	Reference	comment	Point Group	dipole	quadrupole
1	1	¹A_g	C_2h	False						C_2h	0	3
1	2	¹A	C₂	True						C₂	1	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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Experimental data for C4F6 (perfluorobutadiene)

Experimental data for C₄F₆ (perfluorobutadiene)