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	hartrees
Energy at 0K	-275.051236
Energy at 298.15K	-275.049873
HF Energy	-274.455485
Nuclear repulsion energy	94.044024

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2583	2439
2	Σ_g	792	747
3	Σ_u	1374	1298	262.97
4	Π_g	223	210
4	Π_g	223	210
5	Π_u	277	262	0.90
5	Π_u	277	262	0.90

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.597
C2	0.000	0.000	-0.597
F3	0.000	0.000	1.899
F4	0.000	0.000	-1.899

	C1	C2	F3	F4
C1		1.1942	1.3016	2.4959
C2	1.1942		2.4959	1.3016
F3	1.3016	2.4959		3.7975
F4	2.4959	1.3016	3.7975

Number	Element	Mulliken
1	C	0.268
2	C	0.268
3	F	-0.268
4	F	-0.268

All results from a given calculation for C₂F₂ (difluoroacetylene)

using model chemistry: CCSD/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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<r²>	81.960
(<r²>)^1/2	9.053

All results from a given calculation for C2F2 (difluoroacetylene)

using model chemistry: CCSD/6-31G*

States and conformations

All results from a given calculation for C₂F₂ (difluoroacetylene)