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	hartrees
Energy at 0K	-78.370806
Energy at 298.15K	-78.373968
HF Energy	-78.042272
Nuclear repulsion energy	32.907834

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3145	3145
2	A_g	1652	1652
3	A_g	1353	1353
4	A_u	1027	1027
5	B_1u	3129	3129
6	B_1u	1462	1462
7	B_2g	973	973
8	B_2u	3244	3244
9	B_2u	813	813
10	B_3g	3215	3215
11	B_3g	1219	1219
12	B_3u	963	963

Atom	y (Å)	z (Å)
C1	0.000	0.677
C2	0.000	-0.677
H3	0.935	1.250
H4	-0.935	1.250
H5	-0.935	-1.250
H6	0.935	-1.250

	C1	C2	H3	H4	H5	H6
C1		1.3549	1.0960	1.0960	2.1418	2.1418
C2	1.3549		2.1418	2.1418	1.0960	1.0960
H3	1.0960	2.1418		1.8696	3.1211	2.4992
H4	1.0960	2.1418	1.8696		2.4992	3.1211
H5	2.1418	1.0960	3.1211	2.4992		1.8696
H6	2.1418	1.0960	2.4992	3.1211	1.8696

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.468	C1	C2	H6	121.468
C2	C1	H3	121.468	C2	C1	H4	121.468
H3	C1	H4	117.063	H5	C2	H6	117.063

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)/daug-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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Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
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All results from a given calculation for C2H4 (Ethylene)

using model chemistry: CCSD(T)/daug-cc-pVDZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)