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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-1916.084046
Energy at 298.15K-1916.083958
Nuclear repulsion energy491.029043
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 PBEPBE/6-31G(2df,p)
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 1572 1556 0.00      
2 Ag 446 442 0.00      
3 Ag 231 228 0.00      
4 Au 95 95 0.00      
5 B1u 768 760 72.13      
6 B1u 306 302 0.01      
7 B2g 506 501 0.00      
8 B2u 888 879 212.19      
9 B2u 170 169 0.79      
10 B3g 952 942 0.00      
11 B3g 340 337 0.00      
12 B3u 284 281 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 3278.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 3245.0 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 PBEPBE/6-31G(2df,p)
ABC
0.05682 0.04590 0.02539

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.679
C2 0.000 0.000 -0.679
Cl3 0.000 1.456 1.596
Cl4 0.000 -1.456 1.596
Cl5 0.000 -1.456 -1.596
Cl6 0.000 1.456 -1.596

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35701.72131.72132.70082.7008
C21.35702.70082.70081.72131.7213
Cl31.72132.70082.91284.32123.1918
Cl41.72132.70082.91283.19184.3212
Cl52.70081.72134.32123.19182.9128
Cl62.70081.72133.19184.32122.9128

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.206 C1 C2 Cl6 122.206
C2 C1 Cl3 122.206 C2 C1 Cl4 122.206
Cl3 C1 Cl4 115.587 Cl5 C2 Cl6 115.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.091      
2 C 0.091      
3 Cl -0.045      
4 Cl -0.045      
5 Cl -0.045      
6 Cl -0.045      


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 -60.627 0.000 0.000
y 0.000 -57.750 0.000
z 0.000 0.000 -59.511
Traceless
 xyz
x -1.996 0.000 0.000
y 0.000 2.319 0.000
z 0.000 0.000 -0.323
Polar
3z2-r2-0.645
x2-y2-2.876
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.729 0.000 0.000
y 0.000 12.609 0.000
z 0.000 0.000 13.568


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000