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	hartrees
Energy at 0K	-350.671625
Energy at 298.15K
HF Energy	-350.080653
Nuclear repulsion energy	160.330954

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	Σ_g	2369	2287	0.00	390.09	0.28	0.44
2	Σ_g	1324	1278	0.00	25.48	0.34	0.51
3	Σ_g	510	492	0.00	5.61	0.21	0.35
4	Σ_u	2215	2138	175.76	0.00	0.00	0.00
5	Σ_u	949	916	174.88	0.00	0.00	0.00
6	Π_g	438	422	0.00	35.62	0.75	0.86
6	Π_g	438	422	0.00	35.62	0.75	0.86
7	Π_g	271	261	0.00	11.81	0.75	0.86
7	Π_g	271	261	0.00	11.81	0.75	0.86
8	Π_u	314	303	3.42	0.00	0.00	0.00
8	Π_u	314	303	3.42	0.00	0.00	0.00
9	Π_u	107	103	0.03	0.00	0.00	0.00
9	Π_u	107	103	0.03	0.00	0.00	0.00

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.698
C2	0.000	0.000	-0.698
C3	0.000	0.000	1.933
C4	0.000	0.000	-1.933
F5	0.000	0.000	3.280
F6	0.000	0.000	-3.280

	C1	C2	C3	C4	F5	F6
C1		1.3968	1.2350	2.6317	2.5817	3.9784
C2	1.3968		2.6317	1.2350	3.9784	2.5817
C3	1.2350	2.6317		3.8667	1.3467	5.2134
C4	2.6317	1.2350	3.8667		5.2134	1.3467
F5	2.5817	3.9784	1.3467	5.2134		6.5601
F6	3.9784	2.5817	5.2134	1.3467	6.5601

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: MP2/SDD

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: MP2/SDD

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)