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	hartrees
Energy at 0K	-274.668515
Energy at 298.15K	-274.670756
HF Energy	-274.225373
Nuclear repulsion energy	108.456436

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3236	3138
2	A_g	1729	1677
3	A_g	1332	1292
4	A_g	1126	1092
5	A_g	534	518
6	A_u	959	930
7	A_u	329	319
8	B_g	832	807
9	B_u	3231	3134
10	B_u	1336	1295
11	B_u	1167	1132
12	B_u	301	291

Atom	x (Å)	y (Å)
C1	-0.337	0.576
C2	0.337	-0.576
F3	0.337	1.790
F4	-0.337	-1.790
H5	-1.419	0.644
H6	1.419	-0.644

	C1	C2	F3	F4	H5	H6
C1		1.3346	1.3888	2.3664	1.0839	2.1381
C2	1.3346		2.3664	1.3888	2.1381	1.0839
F3	1.3888	2.3664		3.6437	2.0965	2.6644
F4	2.3664	1.3888	3.6437		2.6644	2.0965
H5	1.0839	2.1381	2.0965	2.6644		3.1164
H6	2.1381	1.0839	2.6644	2.0965	3.1164

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	120.657	C1	C2	H6	123.943
C2	C1	F3	120.657	C2	C1	H5	123.943
F3	C1	H5	115.401	F4	C2	H6	115.401

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

using model chemistry: MP4/3-21G

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-, (E)-)

using model chemistry: MP4/3-21G

States and conformations

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