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	hartrees
Energy at 0K	-276.512097
Energy at 298.15K	-276.514507
Nuclear repulsion energy	113.983043

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3290	3117	7.17
2	A₁	1815	1720	41.53
3	A₁	1316	1247	30.09
4	A₁	1048	993	52.95
5	A₁	228	216	2.34
6	A₂	867	821	0.00
7	A₂	512	485	0.00
8	B₁	811	768	29.07
9	B₂	3265	3093	1.96
10	B₂	1437	1362	33.84
11	B₂	1182	1120	97.53
12	B₂	783	742	26.49

Atom	y (Å)	z (Å)
C1	0.663	0.573
C2	-0.663	0.573
F3	1.381	-0.547
F4	-1.381	-0.547
H5	1.243	1.485
H6	-1.243	1.485

	C1	C2	F3	F4	H5	H6
C1		1.3255	1.3311	2.3309	1.0807	2.1127
C2	1.3255		2.3309	1.3311	2.1127	1.0807
F3	1.3311	2.3309		2.7622	2.0370	3.3191
F4	2.3309	1.3311	2.7622		3.3191	2.0370
H5	1.0807	2.1127	2.0370	3.3191		2.4861
H6	2.1127	1.0807	3.3191	2.0370	2.4861

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	122.661	C1	C2	H6	122.476
C2	C1	F3	122.661	C2	C1	H5	122.476
F3	C1	H5	114.863	F4	C2	H6	114.863

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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)

States and conformations

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