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	hartrees
Energy at 0K	-274.614082
Energy at 298.15K	-274.616416
HF Energy	-274.227911
Nuclear repulsion energy	109.531443

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3331	3113	0.00
2	A_g	1836	1716	0.00
3	A_g	1377	1286	0.00
4	A_g	1174	1097	0.00
5	A_g	558	521	0.00
6	A_u	1014	948	71.33
7	A_u	347	324	11.77
8	B_g	909	849	0.00
9	B_u	3325	3107	5.97
10	B_u	1374	1284	11.26
11	B_u	1213	1134	156.89
12	B_u	314	293	16.13

Atom	x (Å)	y (Å)
C1	-0.334	0.568
C2	0.334	-0.568
F3	0.334	1.772
F4	-0.334	-1.772
H5	-1.408	0.637
H6	1.408	-0.637

	C1	C2	F3	F4	H5	H6
C1		1.3182	1.3765	2.3408	1.0765	2.1183
C2	1.3182		2.3408	1.3765	2.1183	1.0765
F3	1.3765	2.3408		3.6069	2.0787	2.6384
F4	2.3408	1.3765	3.6069		2.6384	2.0787
H5	1.0765	2.1183	2.0787	2.6384		3.0910
H6	2.1183	1.0765	2.6384	2.0787	3.0910

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	120.593	C1	C2	H6	124.088
C2	C1	F3	120.593	C2	C1	H5	124.088
F3	C1	H5	115.319	F4	C2	H6	115.319

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

using model chemistry: CISD/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: CISD/3-21G*

States and conformations

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