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	hartrees
Energy at 0K	-274.203091
Energy at 298.15K	-274.205489
Nuclear repulsion energy	112.024403

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3159	3103	9.55
2	A₁	1778	1746	31.04
3	A₁	1315	1291	12.09
4	A₁	1021	1003	36.20
5	A₁	223	219	1.72
6	A₂	915	898	0.00
7	A₂	519	510	0.00
8	B₁	805	791	45.99
9	B₂	3131	3075	0.31
10	B₂	1417	1392	12.49
11	B₂	1176	1155	77.89
12	B₂	759	745	15.62

Atom	y (Å)	z (Å)
C1	0.663	0.566
C2	-0.663	0.566
F3	1.437	-0.546
F4	-1.437	-0.546
H5	1.201	1.517
H6	-1.201	1.517

	C1	C2	F3	F4	H5	H6
C1		1.3252	1.3547	2.3758	1.0933	2.0925
C2	1.3252		2.3758	1.3547	2.0925	1.0933
F3	1.3547	2.3758		2.8745	2.0763	3.3490
F4	2.3758	1.3547	2.8745		3.3490	2.0763
H5	1.0933	2.0925	2.0763	3.3490		2.4020
H6	2.0925	1.0933	3.3490	2.0763	2.4020

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	124.878	C1	C2	H6	119.504
C2	C1	F3	124.878	C2	C1	H5	119.504
F3	C1	H5	115.618	F4	C2	H6	115.618

All results from a given calculation for C₂H₂F₂ (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: LSDA/3-21G*

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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HF vs MP2 Bad vib. Calc. vs exp. 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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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Number	Element	Mulliken
1	C	-0.001
2	C	-0.001
3	F	-0.219
4	F	-0.219
5	H	0.221
6	H	0.221

	x	y	z	Total
	0.000	0.000	2.004	2.004
CHELPG
AIM
ESP

<r²>	0.000
(<r²>)^1/2	0.000

All results from a given calculation for C2H2F2 (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: LSDA/3-21G*

States and conformations

All results from a given calculation for C₂H₂F₂ (Ethene, 1,2-difluoro-, (Z)-)