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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-1916.063359
Energy at 298.15K-1916.063266
Nuclear repulsion energy488.955931
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*
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 1576 1554 0.00      
2 Ag 445 438 0.00      
3 Ag 237 234 0.00      
4 Au 94 93 0.00      
5 B1u 763 752 76.14      
6 B1u 313 308 0.05      
7 B2g 506 499 0.00      
8 B2u 880 867 241.85      
9 B2u 176 174 0.90      
10 B3g 955 941 0.00      
11 B3g 338 333 0.00      
12 B3u 287 283 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 3284.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 3237.5 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*
ABC
0.05633 0.04552 0.02518

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 1.463 1.603
Cl4 0.000 -1.463 1.603
Cl5 0.000 -1.463 -1.603
Cl6 0.000 1.463 -1.603

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35991.72941.72942.71102.7110
C21.35992.71102.71101.72941.7294
Cl31.72942.71102.92544.33953.2053
Cl41.72942.71102.92543.20534.3395
Cl52.71101.72944.33953.20532.9254
Cl62.71101.72943.20534.33952.9254

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.245 C1 C2 Cl6 122.245
C2 C1 Cl3 122.245 C2 C1 Cl4 122.245
Cl3 C1 Cl4 115.511 Cl5 C2 Cl6 115.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/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-r2-0.033
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 11.758 0.000
z 0.000 0.000 12.353


<r2> (average value of r2) Å2
<r2> 362.919
(<r2>)1/2 19.050