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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: HF/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HF/cc-pV(T+d)Z
 hartrees
Energy at 0K-1913.786497
Energy at 298.15K-1913.786841
Nuclear repulsion energy495.621800
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 HF/cc-pV(T+d)Z
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 1801 1640 0.00      
2 Ag 482 439 0.00      
3 Ag 258 235 0.00      
4 Au 110 100 0.00      
5 B1u 840 764 80.86      
6 B1u 338 307 0.02      
7 B2g 633 576 0.00      
8 B2u 985 897 167.14      
9 B2u 194 177 0.91      
10 B3g 1093 995 0.00      
11 B3g 377 343 0.00      
12 B3u 328 299 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 3719.7 cm-1
Scaled (by 0.9103) Zero Point Vibrational Energy (zpe) 3386.0 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 HF/cc-pV(T+d)Z
ABC
0.05814 0.04656 0.02586

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pV(T+d)Z

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.659
C2 0.000 0.000 -0.659
Cl3 0.000 1.440 1.585
Cl4 0.000 -1.440 1.585
Cl5 0.000 -1.440 -1.585
Cl6 0.000 1.440 -1.585

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.31851.71191.71192.66672.6667
C21.31852.66672.66671.71191.7119
Cl31.71192.66672.87944.28323.1710
Cl41.71192.66672.87943.17104.2832
Cl52.66671.71194.28323.17102.8794
Cl62.66671.71193.17104.28322.8794

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.756 C1 C2 Cl6 122.756
C2 C1 Cl3 122.756 C2 C1 Cl4 122.756
Cl3 C1 Cl4 114.489 Cl5 C2 Cl6 114.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.131      
2 C 0.131      
3 Cl -0.066      
4 Cl -0.066      
5 Cl -0.066      
6 Cl -0.066      


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 -61.606 0.000 0.000
y 0.000 -59.350 0.000
z 0.000 0.000 -61.115
Traceless
 xyz
x -1.374 0.000 0.000
y 0.000 2.010 0.000
z 0.000 0.000 -0.636
Polar
3z2-r2-1.273
x2-y2-2.256
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.683 0.000 0.000
y 0.000 11.640 0.000
z 0.000 0.000 12.877


<r2> (average value of r2) Å2
<r2> 355.003
(<r2>)1/2 18.842