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	hartrees
Energy at 0K	-276.702702
Energy at 298.15K	-276.705022
HF Energy	-275.832646
Nuclear repulsion energy	111.509283

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3303	3136	0.00
2	A_g	1777	1687	0.00
3	A_g	1329	1262	0.00
4	A_g	1181	1121	0.00
5	A_g	563	535	0.00
6	A_u	937	890	68.48
7	A_u	348	330	4.78
8	B_g	843	800	0.00
9	B_u	3291	3125	12.24
10	B_u	1323	1256	25.14
11	B_u	1210	1149	272.45
12	B_u	318	302	12.27

Atom	x (Å)	y (Å)
C1	-0.331	0.571
C2	0.331	-0.571
F3	0.331	1.733
F4	-0.331	-1.733
H5	-1.400	0.656
H6	1.400	-0.656

	C1	C2	F3	F4	H5	H6
C1		1.3209	1.3370	2.3045	1.0725	2.1225
C2	1.3209		2.3045	1.3370	2.1225	1.0725
F3	1.3370	2.3045		3.5287	2.0387	2.6178
F4	2.3045	1.3370	3.5287		2.6178	2.0387
H5	1.0725	2.1225	2.0387	2.6178		3.0929
H6	2.1225	1.0725	2.6178	2.0387	3.0929

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	120.233	C1	C2	H6	124.627
C2	C1	F3	120.233	C2	C1	H5	124.627
F3	C1	H5	115.140	F4	C2	H6	115.140

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

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ

States and conformations

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