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	hartrees
Energy at 0K	-351.051672
Energy at 298.15K
HF Energy	-350.135982
Nuclear repulsion energy	164.189644

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ_g	2420	2327
2	Σ_g	1428	1374
3	Σ_g	550	529
4	Σ_u	2310	2222
5	Σ_u	1068	1027
6	Π_g	496	477
6	Π_g	496	477
7	Π_g	288	277
7	Π_g	288	277
8	Π_u	331	319
8	Π_u	331	319
9	Π_u	117	112
9	Π_u	117	112

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	1.906
C4	0.000	0.000	-1.906
F5	0.000	0.000	3.202
F6	0.000	0.000	-3.202

	C1	C2	C3	C4	F5	F6
C1		1.3786	1.2168	2.5954	2.5132	3.8918
C2	1.3786		2.5954	1.2168	3.8918	2.5132
C3	1.2168	2.5954		3.8122	1.2964	5.1086
C4	2.5954	1.2168	3.8122		5.1086	1.2964
F5	2.5132	3.8918	1.2964	5.1086		6.4050
F6	3.8918	2.5132	5.1086	1.2964	6.4050

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: MP4=FULL/6-31G*

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: MP4=FULL/6-31G*

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)