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	hartrees
Energy at 0K	-350.997374
Energy at 298.15K
HF Energy	-350.148146
Nuclear repulsion energy	164.163331

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	2414	2270	0.00	467.67	0.26	0.41
2	Σ_g	1427	1343	0.00	43.31	0.40	0.57
3	Σ_g	551	518	0.00	5.61	0.16	0.28
4	Σ_u	2301	2165	338.70	0.00	0.00	0.00
5	Σ_u	1059	996	288.05	0.00	0.00	0.00
6	Π_g	491	462	0.00	21.11	0.75	0.86
6	Π_g	491	462	0.00	21.11	0.75	0.86
7	Π_g	286	269	0.00	17.47	0.75	0.86
7	Π_g	286	269	0.00	17.47	0.75	0.86
8	Π_u	340	319	1.69	0.00	0.75	0.86
8	Π_u	340	319	1.69	0.00	0.75	0.86
9	Π_u	116	109	0.22	0.00	0.75	0.85
9	Π_u	116	109	0.22	0.00	0.75	0.86

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.688
C2	0.000	0.000	-0.688
C3	0.000	0.000	1.905
C4	0.000	0.000	-1.905
F5	0.000	0.000	3.203
F6	0.000	0.000	-3.203

	C1	C2	C3	C4	F5	F6
C1		1.3752	1.2179	2.5930	2.5154	3.8906
C2	1.3752		2.5930	1.2179	3.8906	2.5154
C3	1.2179	2.5930		3.8109	1.2976	5.1085
C4	2.5930	1.2179	3.8109		5.1085	1.2976
F5	2.5154	3.8906	1.2976	5.1085		6.4060
F6	3.8906	2.5154	5.1085	1.2976	6.4060

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: MP2/6-31+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: MP2/6-31+G**

States and conformations

All results from a given calculation for C₄F₂ (difluorobutadiyne)