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	hartrees
Energy at 0K	-276.369229
Energy at 298.15K	-276.371601
Nuclear repulsion energy	112.994360

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3351	3147	4.52
2	A₁	1784	1675	55.39
3	A₁	1299	1220	33.65
4	A₁	1024	961	71.17
5	A₁	234	220	2.24
6	A₂	836	785	0.00
7	A₂	499	468	0.00
8	B₁	785	737	52.80
9	B₂	3328	3125	6.60
10	B₂	1417	1331	30.76
11	B₂	1145	1076	116.57
12	B₂	765	718	30.70

Atom	y (Å)	z (Å)
C1	0.665	0.588
C2	-0.665	0.588
F3	1.384	-0.558
F4	-1.384	-0.558
H5	1.255	1.489
H6	-1.255	1.489

	C1	C2	F3	F4	H5	H6
C1		1.3302	1.3528	2.3477	1.0771	2.1213
C2	1.3302		2.3477	1.3528	2.1213	1.0771
F3	1.3528	2.3477		2.7678	2.0511	3.3400
F4	2.3477	1.3528	2.7678		3.3400	2.0511
H5	1.0771	2.1213	2.0511	3.3400		2.5105
H6	2.1213	1.0771	3.3400	2.0511	2.5105

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	122.097	C1	C2	H6	123.221
C2	C1	F3	122.097	C2	C1	H5	123.221
F3	C1	H5	114.682	F4	C2	H6	114.682

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

using model chemistry: MP2=FULL/6-31+G**

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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HF vs MP2 Bad vib. Calc. vs exp. 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All results from a given calculation for C2H2F2 (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: MP2=FULL/6-31+G**

States and conformations

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