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	hartrees
Energy at 0K	-274.658835
Energy at 298.15K	-274.661228
Nuclear repulsion energy	110.878816

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3245	3145	9.63
2	A₁	1768	1714	14.78
3	A₁	1341	1299	6.92
4	A₁	995	964	42.04
5	A₁	228	221	2.99
6	A₂	921	893	0.00
7	A₂	498	483	0.00
8	B₁	823	798	26.47
9	B₂	3215	3116	0.05
10	B₂	1464	1419	10.28
11	B₂	1138	1103	55.84
12	B₂	747	724	21.43

Atom	y (Å)	z (Å)
C1	0.666	0.590
C2	-0.666	0.590
F3	1.434	-0.562
F4	-1.434	-0.562
H5	1.230	1.515
H6	-1.230	1.515

	C1	C2	F3	F4	H5	H6
C1		1.3312	1.3844	2.3945	1.0838	2.1092
C2	1.3312		2.3945	1.3844	2.1092	1.0838
F3	1.3844	2.3945		2.8672	2.0872	3.3776
F4	2.3945	1.3844	2.8672		3.3776	2.0872
H5	1.0838	2.1092	2.0872	3.3776		2.4594
H6	2.1092	1.0838	3.3776	2.0872	2.4594

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	123.694	C1	C2	H6	121.363
C2	C1	F3	123.694	C2	C1	H5	121.363
F3	C1	H5	114.943	F4	C2	H6	114.943

All results from a given calculation for C₂H₂F₂ (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: QCISD/3-21G

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 C2H2F2 (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: QCISD/3-21G

States and conformations

All results from a given calculation for C₂H₂F₂ (Ethene, 1,2-difluoro-, (Z)-)