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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-1916.890679
Energy at 298.15K-1916.890733
Nuclear repulsion energy494.045509
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 B3PW91/cc-pVTZ
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 1633 1570 0.00      
2 Ag 457 440 0.00      
3 Ag 237 228 0.00      
4 Au 100 96 0.00      
5 B1u 789 759 75.20      
6 B1u 315 303 0.03      
7 B2g 549 527 0.00      
8 B2u 912 877 200.49      
9 B2u 176 169 0.81      
10 B3g 989 951 0.00      
11 B3g 350 336 0.00      
12 B3u 296 284 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 3400.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 3270.3 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 B3PW91/cc-pVTZ
ABC
0.05749 0.04649 0.02570

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

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 1.448 1.586
Cl4 0.000 -1.448 1.586
Cl5 0.000 -1.448 -1.586
Cl6 0.000 1.448 -1.586

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.33951.71341.71342.68042.6804
C21.33952.68042.68041.71341.7134
Cl31.71342.68042.89574.29503.1720
Cl41.71342.68042.89573.17204.2950
Cl52.68041.71344.29503.17202.8957
Cl62.68041.71343.17204.29502.8957

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.327 C1 C2 Cl6 122.327
C2 C1 Cl3 122.327 C2 C1 Cl4 122.327
Cl3 C1 Cl4 115.345 Cl5 C2 Cl6 115.345
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 C 0.052      
3 Cl -0.026      
4 Cl -0.026      
5 Cl -0.026      
6 Cl -0.026      


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 -60.862 0.000 0.000
y 0.000 -58.127 0.000
z 0.000 0.000 -59.908
Traceless
 xyz
x -1.844 0.000 0.000
y 0.000 2.258 0.000
z 0.000 0.000 -0.414
Polar
3z2-r2-0.828
x2-y2-2.735
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 356.223
(<r2>)1/2 18.874