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	hartrees
Energy at 0K	-78.216668
Energy at 298.15K	-78.219749
HF Energy	-78.008486
Nuclear repulsion energy	32.622660

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3097	2954
2	A_g	1623	1548
3	A_g	1347	1285
4	A_u	994	948
5	B_1u	3070	2927
6	B_1u	1486	1417
7	B_2g	781	744
8	B_2u	3199	3051
9	B_2u	810	773
10	B_3g	3165	3018
11	B_3g	1241	1184
12	B_3u	924	881

Atom	y (Å)	z (Å)
C1	0.000	0.687
C2	0.000	-0.687
H3	0.935	1.264
H4	-0.935	1.264
H5	-0.935	-1.264
H6	0.935	-1.264

	C1	C2	H3	H4	H5	H6
C1		1.3732	1.0990	1.0990	2.1634	2.1634
C2	1.3732		2.1634	2.1634	1.0990	1.0990
H3	1.0990	2.1634		1.8697	3.1449	2.5287
H4	1.0990	2.1634	1.8697		2.5287	3.1449
H5	2.1634	1.0990	3.1449	2.5287		1.8697
H6	2.1634	1.0990	2.5287	3.1449	1.8697

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.718	C1	C2	H6	121.718
C2	C1	H3	121.718	C2	C1	H4	121.718
H3	C1	H4	116.564	H5	C2	H6	116.564

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(T)/SDD

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 C2H4 (Ethylene)

using model chemistry: QCISD(T)/SDD

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)