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All results from a given calculation for C2F4 (Tetrafluoroethylene)

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-475.450193
Energy at 298.15K-475.450947
HF Energy-475.450193
Nuclear repulsion energy240.671844
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 BLYP/6-31G*
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 1832 1817 0.00      
2 Ag 759 753 0.00      
3 Ag 377 373 0.00      
4 Au 183 181 0.00      
5 B1u 1144 1135 312.15      
6 B1u 522 518 1.23      
7 B2g 408 404 0.00      
8 B2u 1286 1276 359.25      
9 B2u 195 193 4.20      
10 B3g 1289 1279 0.00      
11 B3g 521 517 0.00      
12 B3u 390 387 2.17      

Unscaled Zero Point Vibrational Energy (zpe) 4452.8 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 4416.7 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 BLYP/6-31G*
ABC
0.17590 0.10540 0.06591

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.678
C2 0.000 0.000 -0.678
F3 0.000 1.221 1.413
F4 0.000 -1.221 1.413
F5 0.000 -1.221 -1.413
F6 0.000 1.221 -1.413

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6
C11.35681.42511.42512.42172.4217
C21.35682.42172.42171.42511.4251
F31.42512.42172.44243.73502.8258
F41.42512.42172.44242.82583.7350
F52.42171.42513.73502.82582.4424
F62.42171.42512.82583.73502.4424

picture of Tetrafluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F5 121.025 C1 C2 F6 121.025
C2 C1 F3 121.025 C2 C1 F4 121.025
F3 C1 F4 117.950 F5 C2 F6 117.950
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.418      
2 C 0.418      
3 F -0.209      
4 F -0.209      
5 F -0.209      
6 F -0.209      


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 -28.655 0.000 0.000
y 0.000 -30.717 0.000
z 0.000 0.000 -30.913
Traceless
 xyz
x 2.161 0.000 0.000
y 0.000 -0.933 0.000
z 0.000 0.000 -1.227
Polar
3z2-r2-2.454
x2-y22.063
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.990 0.000 0.000
y 0.000 3.543 0.000
z 0.000 0.000 4.913


<r2> (average value of r2) Å2
<r2> 140.243
(<r2>)1/2 11.842