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	hartrees
Energy at 0K	-351.166625
Energy at 298.15K
HF Energy	-350.277449
Nuclear repulsion energy	167.932031

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2645	2450	0.00
2	Σ_g	1505	1395	0.00
3	Σ_g	582	539	0.00
4	Σ_u	2519	2334	430.51
5	Σ_u	1161	1075	326.19
6	Π_g	536	496	0.00
6	Π_g	536	496	0.00
7	Π_g	354	328	0.00
7	Π_g	354	328	0.00
8	Π_u	475	440	3.97
8	Π_u	475	440	3.97
9	Π_u	118	110	0.39
9	Π_u	118	110	0.39

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.689
C2	0.000	0.000	-0.689
C3	0.000	0.000	1.871
C4	0.000	0.000	-1.871
F5	0.000	0.000	3.133
F6	0.000	0.000	-3.133

	C1	C2	C3	C4	F5	F6
C1		1.3787	1.1815	2.5602	2.4434	3.8221
C2	1.3787		2.5602	1.1815	3.8221	2.4434
C3	1.1815	2.5602		3.7417	1.2620	5.0036
C4	2.5602	1.1815	3.7417		5.0036	1.2620
F5	2.4434	3.8221	1.2620	5.0036		6.2656
F6	3.8221	2.4434	5.0036	1.2620	6.2656

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	C4	180.000		C1	C3	F5	180.000
C2	C1	C3	180.000		C2	C4	F6	180.000

All results from a given calculation for C₄F₂ (difluorobutadiyne)

using model chemistry: CID/cc-pVTZ

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C4F2 (difluorobutadiyne)

using model chemistry: CID/cc-pVTZ

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)