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	hartrees
Energy at 0K	-275.849585
Energy at 298.15K	-275.852179
HF Energy	-275.849585
Nuclear repulsion energy	115.408839

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3411	3092	7.39
2	A₁	1938	1756	65.01
3	A₁	1400	1269	45.79
4	A₁	1116	1011	82.37
5	A₁	260	235	2.94
6	A₂	1015	920	0.00
7	A₂	571	518	0.00
8	B₁	884	801	50.03
9	B₂	3386	3069	3.45
10	B₂	1528	1385	48.09
11	B₂	1243	1127	162.76
12	B₂	847	768	39.81

Atom	y (Å)	z (Å)
C1	0.652	0.567
C2	-0.652	0.567
F3	1.364	-0.541
F4	-1.364	-0.541
H5	1.230	1.466
H6	-1.230	1.466

	C1	C2	F3	F4	H5	H6
C1		1.3038	1.3167	2.2999	1.0685	2.0853
C2	1.3038		2.2999	1.3167	2.0853	1.0685
F3	1.3167	2.2999		2.7270	2.0110	3.2790
F4	2.2999	1.3167	2.7270		3.2790	2.0110
H5	1.0685	2.0853	2.0110	3.2790		2.4597
H6	2.0853	1.0685	3.2790	2.0110	2.4597

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F4	122.712	C1	C2	H6	122.746
C2	C1	F3	122.712	C2	C1	H5	122.746
F3	C1	H5	114.541	F4	C2	H6	114.541

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

using model chemistry: HF/Def2TZVPP

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	0.170
2	C	0.170
3	F	-0.254
4	F	-0.254
5	H	0.084
6	H	0.084

	x	y	z	Total
	0.000	0.000	2.557	2.557
CHELPG
AIM
ESP

<r²>	68.545
(<r²>)^1/2	8.279

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

using model chemistry: HF/Def2TZVPP

States and conformations

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