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	hartrees
Energy at 0K	-276.510967
Energy at 298.15K	-276.513279
HF Energy	-275.740802
Nuclear repulsion energy	111.621616

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3294	3096	0.00
2	A_g	1787	1680	0.00
3	A_g	1320	1241	0.00
4	A_g	1191	1119	0.00
5	A_g	566	532	0.00
6	A_u	947	890	50.52
7	A_u	354	333	4.86
8	B_g	836	786	0.00
9	B_u	3286	3089	11.85
10	B_u	1328	1248	46.87
11	B_u	1233	1158	224.74
12	B_u	310	291	11.18

Atom	x (Å)	y (Å)
C1	-0.328	0.575
C2	0.328	-0.575
F3	0.328	1.732
F4	-0.328	-1.732
H5	-1.404	0.660
H6	1.404	-0.660

	C1	C2	F3	F4	H5	H6
C1		1.3235	1.3304	2.3071	1.0797	2.1275
C2	1.3235		2.3071	1.3304	2.1275	1.0797
F3	1.3304	2.3071		3.5262	2.0369	2.6237
F4	2.3071	1.3304	3.5262		2.6237	2.0369
H5	1.0797	2.1275	2.0369	2.6237		3.1036
H6	2.1275	1.0797	2.6237	2.0369	3.1036

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	120.758	C1	C2	H6	124.257
C2	C1	F3	120.758	C2	C1	H5	124.257
F3	C1	H5	114.985	F4	C2	H6	114.985

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

using model chemistry: MP2=FULL/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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HF vs MP2 Bad vib. Calc. vs exp. 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All results from a given calculation for C2H2F2 (Ethene, 1,2-difluoro-, (E)-)

using model chemistry: MP2=FULL/6-31G(2df,p)

States and conformations

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