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	hartrees
Energy at 0K	-276.536359
Energy at 298.15K	-276.538645
HF Energy	-275.793547
Nuclear repulsion energy	110.933514

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3284	3111	0.00
2	A_g	1769	1676	0.00
3	A_g	1318	1248	0.00
4	A_g	1172	1110	0.00
5	A_g	560	531	0.00
6	A_u	924	875	77.34
7	A_u	346	328	5.83
8	B_g	810	767	0.00
9	B_u	3277	3104	12.23
10	B_u	1316	1246	27.59
11	B_u	1200	1137	275.64
12	B_u	317	300	13.99

Atom	x (Å)	y (Å)
C1	-0.332	0.576
C2	0.332	-0.576
F3	0.332	1.742
F4	-0.332	-1.742
H5	-1.410	0.665
H6	1.410	-0.665

	C1	C2	F3	F4	H5	H6
C1		1.3292	1.3420	2.3176	1.0820	2.1391
C2	1.3292		2.3176	1.3420	2.1391	1.0820
F3	1.3420	2.3176		3.5465	2.0482	2.6376
F4	2.3176	1.3420	3.5465		2.6376	2.0482
H5	1.0820	2.1391	2.0482	2.6376		3.1188
H6	2.1391	1.0820	2.6376	2.0482	3.1188

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	120.365	C1	C2	H6	124.721
C2	C1	F3	120.365	C2	C1	H5	124.721
F3	C1	H5	114.915	F4	C2	H6	114.915

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

using model chemistry: MP2=FULL/6-311G*

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/6-311G*

States and conformations

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