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	hartrees
Energy at 0K	-106.366350
Energy at 298.15K	-106.367630
Nuclear repulsion energy	134.464496

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	2157	1937	0.00
2	A_g	872	783	0.00
3	A_g	427	384	0.00
4	A_u	221	198	0.00
5	B_1u	1290	1158	540.50
6	B_1u	597	536	3.61
7	B_2g	591	531	0.00
8	B_2u	1498	1346	493.24
9	B_2u	224	201	6.94
10	B_3g	1513	1359	0.00
11	B_3g	594	534	0.00
12	B_3u	465	418	7.57

Atom	y (Å)	z (Å)
C1	0.000	0.664
C2	0.000	-0.664
F3	1.089	1.386
F4	-1.089	1.386
F5	-1.089	-1.386
F6	1.089	-1.386

	C1	C2	F3	F4	F5	F6
C1		1.3280	1.3070	1.3070	2.3217	2.3217
C2	1.3280		2.3217	2.3217	1.3070	1.3070
F3	1.3070	2.3217		2.1786	3.5261	2.7726
F4	1.3070	2.3217	2.1786		2.7726	3.5261
F5	2.3217	1.3070	3.5261	2.7726		2.1786
F6	2.3217	1.3070	2.7726	3.5261	2.1786

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	F5	123.547	C1	C2	F6	123.547
C2	C1	F3	123.547	C2	C1	F4	123.547
F3	C1	F4	112.906	F5	C2	F6	112.906

All results from a given calculation for C₂F₄ (Tetrafluoroethylene)

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	0.332
2	C	0.332
3	F	-0.166
4	F	-0.166
5	F	-0.166
6	F	-0.166

<r²>	110.260
(<r²>)^1/2	10.500

All results from a given calculation for C2F4 (Tetrafluoroethylene)

using model chemistry: HF/CEP-31G*

States and conformations

All results from a given calculation for C₂F₄ (Tetrafluoroethylene)