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	hartrees
Energy at 0K	-78.429334
Energy at 298.15K	-78.432503
HF Energy	-78.064752
Nuclear repulsion energy	33.396259

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3171	3171	0.00
2	A_g	1694	1694	0.00
3	A_g	1383	1383	0.00
4	A_u	1059	1059	0.00
5	B_1u	3152	3152	13.26
6	B_1u	1489	1489	8.53
7	B_2g	959	959	0.00
8	B_2u	3258	3258	18.43
9	B_2u	829	829	0.00
10	B_3g	3231	3231	0.00
11	B_3g	1254	1254	0.00
12	B_3u	979	979	90.76

Atom	y (Å)	z (Å)
C1	0.000	0.666
C2	0.000	-0.666
H3	0.923	1.232
H4	-0.923	1.232
H5	-0.923	-1.232
H6	0.923	-1.232

	C1	C2	H3	H4	H5	H6
C1		1.3326	1.0822	1.0822	2.1104	2.1104
C2	1.3326		2.1104	2.1104	1.0822	1.0822
H3	1.0822	2.1104		1.8455	3.0781	2.4635
H4	1.0822	2.1104	1.8455		2.4635	3.0781
H5	2.1104	1.0822	3.0781	2.4635		1.8455
H6	2.1104	1.0822	2.4635	3.0781	1.8455

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.500	C1	C2	H6	121.500
C2	C1	H3	121.500	C2	C1	H4	121.500
H3	C1	H4	117.001	H5	C2	H6	117.001

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD/daug-cc-pVTZ

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/daug-cc-pVTZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)