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	hartrees
Energy at 0K	-78.365658
Energy at 298.15K	-78.368818
HF Energy	-78.038022
Nuclear repulsion energy	33.288904

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3221	3221
2	A_g	1712	1712
3	A_g	1394	1394
4	A_u	1056	1056
5	B_1u	3203	3203
6	B_1u	1517	1517
7	B_2g	916	916
8	B_2u	3313	3313
9	B_2u	840	840
10	B_3g	3290	3290
11	B_3g	1259	1259
12	B_3u	969	969

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
H3	0.921	1.238
H4	-0.921	1.238
H5	-0.921	-1.238
H6	0.921	-1.238

	C1	C2	H3	H4	H5	H6
C1		1.3401	1.0821	1.0821	2.1190	2.1190
C2	1.3401		2.1190	2.1190	1.0821	1.0821
H3	1.0821	2.1190		1.8417	3.0865	2.4769
H4	1.0821	2.1190	1.8417		2.4769	3.0865
H5	2.1190	1.0821	3.0865	2.4769		1.8417
H6	2.1190	1.0821	2.4769	3.0865	1.8417

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.684	C1	C2	H6	121.684
C2	C1	H3	121.684	C2	C1	H4	121.684
H3	C1	H4	116.632	H5	C2	H6	116.632

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)=FULL/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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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)=FULL/6-31G**

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)