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	hartrees
Energy at 0K	-59.817557
Energy at 298.15K	-59.820077
Nuclear repulsion energy	62.701964

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3474	3119	23.43
2	A₁	1965	1765	69.83
3	A₁	1380	1240	53.46
4	A₁	1115	1001	88.30
5	A₁	251	226	3.18
6	A₂	960	862	0.00
7	A₂	537	482	0.00
8	B₁	871	782	55.32
9	B₂	3443	3091	1.48
10	B₂	1498	1345	66.41
11	B₂	1241	1115	170.82
12	B₂	820	736	35.89

Atom	y (Å)	z (Å)
C1	0.669	0.574
C2	-0.669	0.574
F3	1.382	-0.547
F4	-1.382	-0.547
H5	1.255	1.478
H6	-1.255	1.478

	C1	C2	F3	F4	H5	H6
C1		1.3372	1.3290	2.3371	1.0775	2.1255
C2	1.3372		2.3371	1.3290	2.1255	1.0775
F3	1.3290	2.3371		2.7638	2.0291	3.3250
F4	2.3371	1.3290	2.7638		3.3250	2.0291
H5	1.0775	2.1255	2.0291	3.3250		2.5103
H6	2.1255	1.0775	3.3250	2.0291	2.5103

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	122.461	C1	C2	H6	122.983
C2	C1	F3	122.461	C2	C1	H5	122.983
F3	C1	H5	114.556	F4	C2	H6	114.556

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

using model chemistry: HF/CEP-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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Number	Element	Mulliken
1	C	0.012
2	C	0.012
3	F	-0.219
4	F	-0.219
5	H	0.207
6	H	0.207

	x	y	z	Total
	0.000	0.000	2.871	2.871
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: HF/CEP-31G*

States and conformations

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