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	hartrees
Energy at 0K	-78.355852
Energy at 298.15K	-78.358994
HF Energy	-78.038357
Nuclear repulsion energy	32.912754

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3163	3014
2	A_g	1669	1591
3	A_g	1357	1293
4	A_u	1030	982
5	B_1u	3144	2996
6	B_1u	1459	1391
7	B_2g	908	865
8	B_2u	3259	3106
9	B_2u	818	779
10	B_3g	3233	3081
11	B_3g	1228	1170
12	B_3u	949	905

Atom	y (Å)	z (Å)
C1	0.000	0.676
C2	0.000	-0.676
H3	0.937	1.250
H4	-0.937	1.250
H5	-0.937	-1.250
H6	0.937	-1.250

	C1	C2	H3	H4	H5	H6
C1		1.3519	1.0985	1.0985	2.1414	2.1414
C2	1.3519		2.1414	2.1414	1.0985	1.0985
H3	1.0985	2.1414		1.8734	3.1236	2.4995
H4	1.0985	2.1414	1.8734		2.4995	3.1236
H5	2.1414	1.0985	3.1236	2.4995		1.8734
H6	2.1414	1.0985	2.4995	3.1236	1.8734

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.491	C1	C2	H6	121.491
C2	C1	H3	121.491	C2	C1	H4	121.491
H3	C1	H4	117.017	H5	C2	H6	117.017

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(T)/cc-pVDZ

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)/cc-pVDZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)