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	hartrees
Energy at 0K	-78.384052
Energy at 298.15K	-78.387195
Nuclear repulsion energy	33.153897

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3153	3042
2	A_g	1664	1606
3	A_g	1365	1317
4	A_u	1038	1001
5	B_1u	3136	3025
6	B_1u	1474	1422
7	B_2g	890	859
8	B_2u	3244	3129
9	B_2u	821	792
10	B_3g	3217	3104
11	B_3g	1230	1186
12	B_3u	949	915

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
H3	0.928	1.241
H4	-0.928	1.241
H5	-0.928	-1.241
H6	0.928	-1.241

	C1	C2	H3	H4	H5	H6
C1		1.3437	1.0886	1.0886	2.1263	2.1263
C2	1.3437		2.1263	2.1263	1.0886	1.0886
H3	1.0886	2.1263		1.8555	3.0994	2.4826
H4	1.0886	2.1263	1.8555		2.4826	3.0994
H5	2.1263	1.0886	3.0994	2.4826		1.8555
H6	2.1263	1.0886	2.4826	3.0994	1.8555

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.541	C1	C2	H6	121.541
C2	C1	H3	121.541	C2	C1	H4	121.541
H3	C1	H4	116.919	H5	C2	H6	116.919

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)/6-311G**

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)/6-311G**

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)