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	hartrees
Energy at 0K	-350.994395
Energy at 298.15K
HF Energy	-350.152188
Nuclear repulsion energy	164.653680

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2525	2379	0.00
2	Σ_g	1427	1345	0.00
3	Σ_g	555	523	0.00
4	Σ_u	2401	2263	302.05
5	Σ_u	1077	1015	287.40
6	Π_g	535	504	0.00
6	Π_g	535	504	0.00
7	Π_g	307	289	0.00
7	Π_g	307	289	0.00
8	Π_u	378	356	2.50
8	Π_u	378	356	2.50
9	Π_u	118	111	0.10
9	Π_u	118	111	0.10

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.694
C2	0.000	0.000	-0.694
C3	0.000	0.000	1.899
C4	0.000	0.000	-1.899
F5	0.000	0.000	3.194
F6	0.000	0.000	-3.194

	C1	C2	C3	C4	F5	F6
C1		1.3885	1.2046	2.5932	2.5002	3.8887
C2	1.3885		2.5932	1.2046	3.8887	2.5002
C3	1.2046	2.5932		3.7978	1.2956	5.0934
C4	2.5932	1.2046	3.7978		5.0934	1.2956
F5	2.5002	3.8887	1.2956	5.0934		6.3890
F6	3.8887	2.5002	5.0934	1.2956	6.3890

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: CCD/6-31+G**

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: CCD/6-31+G**

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)