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	hartrees
Energy at 0K	-274.981245
Energy at 298.15K	-274.980238
HF Energy	-274.457828
Nuclear repulsion energy	94.883278

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2682	2483	0.00
2	Σ_g	825	764	0.00
3	Σ_u	1421	1316	294.82
4	Π_g	337	312	0.00
4	Π_g	337	312	0.00
5	Π_u	299	277	1.16
5	Π_u	299	277	1.16

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.591
C2	0.000	0.000	-0.591
F3	0.000	0.000	1.882
F4	0.000	0.000	-1.882

	C1	C2	F3	F4
C1		1.1822	1.2909	2.4731
C2	1.1822		2.4731	1.2909
F3	1.2909	2.4731		3.7640
F4	2.4731	1.2909	3.7640

Number	Element	Mulliken
1	C	0.261
2	C	0.261
3	F	-0.261
4	F	-0.261

All results from a given calculation for C₂F₂ (difluoroacetylene)

using model chemistry: CISD/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>	80.683
(<r²>)^1/2	8.982

All results from a given calculation for C2F2 (difluoroacetylene)

using model chemistry: CISD/6-31G*

States and conformations

All results from a given calculation for C₂F₂ (difluoroacetylene)