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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-1916.063372
Energy at 298.15K-1916.063281
HF Energy-1916.063372
Nuclear repulsion energy488.953755
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 1575 1549 0.00      
2 Ag 446 438 0.00      
3 Ag 237 233 0.00      
4 Au 94 93 0.00      
5 B1u 764 752 76.10      
6 B1u 313 308 0.04      
7 B2g 506 498 0.00      
8 B2u 883 868 242.00      
9 B2u 176 173 0.89      
10 B3g 958 942 0.00      
11 B3g 338 333 0.00      
12 B3u 287 282 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 3287.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 3233.6 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 PBEPBEultrafine/6-31G*
ABC
0.05633 0.04551 0.02517

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
C2 0.000 0.000 -0.680
Cl3 0.000 1.460 1.609
Cl4 0.000 -1.460 1.609
Cl5 0.000 -1.460 -1.609
Cl6 0.000 1.460 -1.609

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35961.73071.73072.71492.7149
C21.35962.71492.71491.73071.7307
Cl31.73072.71492.92034.34563.2181
Cl41.73072.71492.92033.21814.3456
Cl52.71491.73074.34563.21812.9203
Cl62.71491.73073.21814.34562.9203

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.473 C1 C2 Cl6 122.473
C2 C1 Cl3 122.473 C2 C1 Cl4 122.473
Cl3 C1 Cl4 115.055 Cl5 C2 Cl6 115.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C -0.213      
3 Cl 0.106      
4 Cl 0.106      
5 Cl 0.106      
6 Cl 0.106      


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 -61.119 0.000 0.000
y 0.000 -58.098 0.000
z 0.000 0.000 -59.625
Traceless
 xyz
x -2.258 0.000 0.000
y 0.000 2.274 0.000
z 0.000 0.000 -0.016
Polar
3z2-r2-0.032
x2-y2-3.021
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.163 0.000 0.000
y 0.000 11.759 0.000
z 0.000 0.000 12.354


<r2> (average value of r2) Å2
<r2> 362.924
(<r2>)1/2 19.051