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	hartrees
Energy at 0K	-78.356295
Energy at 298.15K	-78.359452
HF Energy	-78.037901
Nuclear repulsion energy	33.257111

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3219	3219
2	A_g	1709	1709
3	A_g	1392	1392
4	A_u	1052	1052
5	B_1u	3201	3201
6	B_1u	1514	1514
7	B_2g	910	910
8	B_2u	3311	3311
9	B_2u	839	839
10	B_3g	3287	3287
11	B_3g	1259	1259
12	B_3u	966	966

Atom	y (Å)	z (Å)
C1	0.000	0.671
C2	0.000	-0.671
H3	0.922	1.240
H4	-0.922	1.240
H5	-0.922	-1.240
H6	0.922	-1.240

	C1	C2	H3	H4	H5	H6
C1		1.3416	1.0830	1.0830	2.1211	2.1211
C2	1.3416		2.1211	2.1211	1.0830	1.0830
H3	1.0830	2.1211		1.8431	3.0893	2.4793
H4	1.0830	2.1211	1.8431		2.4793	3.0893
H5	2.1211	1.0830	3.0893	2.4793		1.8431
H6	2.1211	1.0830	2.4793	3.0893	1.8431

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.686	C1	C2	H6	121.686
C2	C1	H3	121.686	C2	C1	H4	121.686
H3	C1	H4	116.629	H5	C2	H6	116.629

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(TQ)/6-31G**

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(TQ)/6-31G**

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)