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All results from a given calculation for C2F4 (Tetrafluoroethylene)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-475.194227
Energy at 298.15K-475.195124
Nuclear repulsion energy242.260753
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1844 1825 0.00      
2 Ag 768 760 0.00      
3 Ag 385 381 0.00      
4 Au 188 186 0.00      
5 B1u 1150 1138 360.51      
6 B1u 535 530 1.52      
7 B2g 487 482 0.00      
8 B2u 1286 1273 420.60      
9 B2u 197 195 4.62      
10 B3g 1285 1271 0.00      
11 B3g 530 525 0.00      
12 B3u 404 399 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 4529.8 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4482.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBE/6-311G*
ABC
0.17928 0.10619 0.06669

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.667
C2 0.000 0.000 -0.667
F3 0.000 1.112 1.396
F4 0.000 -1.112 1.396
F5 0.000 -1.112 -1.396
F6 0.000 1.112 -1.396

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6
C11.33451.32971.32972.34382.3438
C21.33452.34382.34381.32971.3297
F31.32972.34382.22473.56972.7917
F41.32972.34382.22472.79173.5697
F52.34381.32973.56972.79172.2247
F62.34381.32972.79173.56972.2247

picture of Tetrafluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F5 123.225 C1 C2 F6 123.225
C2 C1 F3 123.225 C2 C1 F4 123.225
F3 C1 F4 113.550 F5 C2 F6 113.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.286      
2 C 0.286      
3 F -0.143      
4 F -0.143      
5 F -0.143      
6 F -0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.289 0.000 0.000
y 0.000 -31.630 0.000
z 0.000 0.000 -31.701
Traceless
 xyz
x 2.376 0.000 0.000
y 0.000 -1.135 0.000
z 0.000 0.000 -1.241
Polar
3z2-r2-2.482
x2-y22.340
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.039 0.000 0.000
y 0.000 3.534 0.000
z 0.000 0.000 4.823


<r2> (average value of r2) Å2
<r2> 139.308
(<r2>)1/2 11.803