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	hartrees
Energy at 0K	-13.539695
Energy at 298.15K	-13.542735
HF Energy	-13.262855
Nuclear repulsion energy	19.035416

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3145	2999
2	A_g	1666	1589
3	A_g	1341	1279
4	A_u	991	945
5	B_1u	3123	2978
6	B_1u	1454	1386
7	B_2g	737	703
8	B_2u	3238	3088
9	B_2u	786	749
10	B_3g	3195	3047
11	B_3g	1181	1126
12	B_3u	899	857

Atom	y (Å)	z (Å)
C1	0.000	0.691
C2	0.000	-0.691
H3	0.941	1.263
H4	-0.941	1.263
H5	-0.941	-1.263
H6	0.941	-1.263

	C1	C2	H3	H4	H5	H6
C1		1.3819	1.1013	1.1013	2.1684	2.1684
C2	1.3819		2.1684	2.1684	1.1013	1.1013
H3	1.1013	2.1684		1.8826	3.1497	2.5251
H4	1.1013	2.1684	1.8826		2.5251	3.1497
H5	2.1684	1.1013	3.1497	2.5251		1.8826
H6	2.1684	1.1013	2.5251	3.1497	1.8826

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.270	C1	C2	H6	121.270
C2	C1	H3	121.270	C2	C1	H4	121.270
H3	C1	H4	117.459	H5	C2	H6	117.459

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(T)/CEP-31G*

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)/CEP-31G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)