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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-1917.085095
Energy at 298.15K-1917.085213
Nuclear repulsion energy493.609893
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 mPW1PW91/6-311G**
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 1654 1583 0.00      
2 Ag 463 443 0.00      
3 Ag 248 237 0.00      
4 Au 99 95 0.00      
5 B1u 797 762 80.03      
6 B1u 327 313 0.55      
7 B2g 556 532 0.00      
8 B2u 923 883 232.23      
9 B2u 184 176 0.91      
10 B3g 1003 960 0.00      
11 B3g 352 337 0.00      
12 B3u 303 290 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 3455.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 3305.4 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 mPW1PW91/6-311G**
ABC
0.05754 0.04628 0.02565

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.670
C2 0.000 0.000 -0.670
Cl3 0.000 1.447 1.590
Cl4 0.000 -1.447 1.590
Cl5 0.000 -1.447 -1.590
Cl6 0.000 1.447 -1.590

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.33981.71471.71472.68332.6833
C21.33982.68332.68331.71471.7147
Cl31.71472.68332.89454.29953.1793
Cl41.71472.68332.89453.17934.2995
Cl52.68331.71474.29953.17932.8945
Cl62.68331.71473.17934.29952.8945

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.436 C1 C2 Cl6 122.436
C2 C1 Cl3 122.436 C2 C1 Cl4 122.436
Cl3 C1 Cl4 115.129 Cl5 C2 Cl6 115.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.148      
2 C -0.148      
3 Cl 0.074      
4 Cl 0.074      
5 Cl 0.074      
6 Cl 0.074      


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 -62.319 0.000 0.000
y 0.000 -58.967 0.000
z 0.000 0.000 -60.984
Traceless
 xyz
x -2.344 0.000 0.000
y 0.000 2.685 0.000
z 0.000 0.000 -0.341
Polar
3z2-r2-0.682
x2-y2-3.352
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.863 0.000 0.000
y 0.000 11.751 0.000
z 0.000 0.000 12.291


<r2> (average value of r2) Å2
<r2> 357.588
(<r2>)1/2 18.910