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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-70.945020
Energy at 298.15K-70.944876
Nuclear repulsion energy107.141263
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/CEP-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 1625 1569 0.00      
2 Ag 441 426 0.00      
3 Ag 231 224 0.00      
4 Au 96 93 0.00      
5 B1u 757 731 85.66      
6 B1u 307 296 0.27      
7 B2g 481 464 0.00      
8 B2u 891 861 238.56      
9 B2u 172 166 0.85      
10 B3g 964 931 0.00      
11 B3g 332 320 0.00      
12 B3u 284 274 2.44      

Unscaled Zero Point Vibrational Energy (zpe) 3290.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 3177.2 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/CEP-31G*
ABC
0.05532 0.04454 0.02467

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.687
C2 0.000 0.000 -0.687
Cl3 0.000 1.476 1.620
Cl4 0.000 -1.476 1.620
Cl5 0.000 -1.476 -1.620
Cl6 0.000 1.476 -1.620

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.37481.74611.74612.73922.7392
C21.37482.73922.73921.74611.7461
Cl31.74612.73922.95214.38343.2403
Cl41.74612.73922.95213.24034.3834
Cl52.73921.74614.38343.24032.9521
Cl62.73921.74613.24034.38342.9521

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.290 C1 C2 Cl6 122.290
C2 C1 Cl3 122.290 C2 C1 Cl4 122.290
Cl3 C1 Cl4 115.420 Cl5 C2 Cl6 115.420
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 C -0.013      
3 Cl 0.007      
4 Cl 0.007      
5 Cl 0.007      
6 Cl 0.007      


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 -58.975 0.000 0.000
y 0.000 -55.471 0.000
z 0.000 0.000 -57.866
Traceless
 xyz
x -2.307 0.000 0.000
y 0.000 2.950 0.000
z 0.000 0.000 -0.643
Polar
3z2-r2-1.285
x2-y2-3.505
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.857 0.000 0.000
y 0.000 12.268 0.000
z 0.000 0.000 12.440


<r2> (average value of r2) Å2
<r2> 174.154
(<r2>)1/2 13.197