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	hartrees
Energy at 0K	-275.359934
Energy at 298.15K	-275.358878
HF Energy	-274.567192
Nuclear repulsion energy	95.102286

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2578	2427
2	Σ_g	803	756
3	Σ_u	1393	1311	303.61
4	Π_g	322	304
4	Π_g	322	304
5	Π_u	287	270	0.16
5	Π_u	287	270	0.16

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.593
C2	0.000	0.000	-0.593
F3	0.000	0.000	1.878
F4	0.000	0.000	-1.878

	C1	C2	F3	F4
C1		1.1856	1.2848	2.4703
C2	1.1856		2.4703	1.2848
F3	1.2848	2.4703		3.7551
F4	2.4703	1.2848	3.7551

Number	Element	Mulliken
1	C	0.125
2	C	0.125
3	F	-0.125
4	F	-0.125

All results from a given calculation for C₂F₂ (difluoroacetylene)

using model chemistry: CCSD/cc-pVTZ

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>	0.000
(<r²>)^1/2	0.000

All results from a given calculation for C2F2 (difluoroacetylene)

using model chemistry: CCSD/cc-pVTZ

States and conformations

All results from a given calculation for C₂F₂ (difluoroacetylene)