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	hartrees
Energy at 0K	-350.989456
Energy at 298.15K
HF Energy	-350.153065
Nuclear repulsion energy	164.975635

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2551	2373	0.00
2	Σ_g	1438	1338	0.00
3	Σ_g	561	522	0.00
4	Σ_u	2431	2262	313.77
5	Σ_u	1089	1013	301.96
6	Π_g	522	485	0.00
6	Π_g	522	485	0.00
7	Π_g	308	287	0.00
7	Π_g	308	287	0.00
8	Π_u	379	353	2.55
8	Π_u	379	353	2.55
9	Π_u	119	110	0.13
9	Π_u	119	110	0.13

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.693
C2	0.000	0.000	-0.693
C3	0.000	0.000	1.895
C4	0.000	0.000	-1.895
F5	0.000	0.000	3.188
F6	0.000	0.000	-3.188

	C1	C2	C3	C4	F5	F6
C1		1.3864	1.2021	2.5885	2.4951	3.8815
C2	1.3864		2.5885	1.2021	3.8815	2.4951
C3	1.2021	2.5885		3.7906	1.2930	5.0836
C4	2.5885	1.2021	3.7906		5.0836	1.2930
F5	2.4951	3.8815	1.2930	5.0836		6.3766
F6	3.8815	2.4951	5.0836	1.2930	6.3766

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: MP3/6-31+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: MP3/6-31+G**

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)