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All results from a given calculation for C2F4 (Tetrafluoroethylene)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-468.759577
Energy at 298.15K-468.759964
Nuclear repulsion energy234.118723
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 B3LYP/STO-3G
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 1806 1612 0.00      
2 Ag 784 700 0.00      
3 Ag 353 315 0.00      
4 Au 174 155 0.00      
5 B1u 1214 1083 125.39      
6 B1u 496 443 2.01      
7 B2g 387 346 0.00      
8 B2u 1397 1246 115.06      
9 B2u 173 155 1.25      
10 B3g 1459 1302 0.00      
11 B3g 521 465 0.00      
12 B3u 391 349 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 4578.0 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 4085.4 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 B3LYP/STO-3G
ABC
0.16711 0.09937 0.06232

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.689
C2 0.000 0.000 -0.689
F3 0.000 1.152 1.443
F4 0.000 -1.152 1.443
F5 0.000 -1.152 -1.443
F6 0.000 1.152 -1.443

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6
C11.37781.37701.37702.42332.4233
C21.37782.42332.42331.37701.3770
F31.37702.42332.30433.69322.8861
F41.37702.42332.30432.88613.6932
F52.42331.37703.69322.88612.3043
F62.42331.37702.88613.69322.3043

picture of Tetrafluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F5 123.208 C1 C2 F6 123.208
C2 C1 F3 123.208 C2 C1 F4 123.208
F3 C1 F4 113.584 F5 C2 F6 113.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.118      
2 C 0.118      
3 F -0.059      
4 F -0.059      
5 F -0.059      
6 F -0.059      


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 -25.663 0.000 0.000
y 0.000 -27.198 0.000
z 0.000 0.000 -26.830
Traceless
 xyz
x 1.351 0.000 0.000
y 0.000 -0.951 0.000
z 0.000 0.000 -0.399
Polar
3z2-r2-0.799
x2-y21.535
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.452 0.000 0.000
y 0.000 2.509 0.000
z 0.000 0.000 3.810


<r2> (average value of r2) Å2
<r2> 145.041
(<r2>)1/2 12.043