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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-1917.037211
Energy at 298.15K-1917.037330
HF Energy-1917.037211
Nuclear repulsion energy493.646699
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 wB97X-D/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 1671 1597 0.00      
2 Ag 458 438 0.00      
3 Ag 243 232 0.00      
4 Au 104 99 0.00      
5 B1u 793 758 74.67      
6 B1u 318 304 0.04      
7 B2g 567 542 0.00      
8 B2u 920 879 187.02      
9 B2u 184 176 0.82      
10 B3g 1002 958 0.00      
11 B3g 352 337 0.00      
12 B3u 305 292 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 3458.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 3306.5 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 wB97X-D/cc-pVTZ
ABC
0.05747 0.04636 0.02566

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.699
C2 0.000 0.000 -0.699
Cl3 0.000 1.365 1.494
Cl4 0.000 -1.365 1.494
Cl5 0.000 -1.365 -1.494
Cl6 0.000 1.365 -1.494

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.39781.57941.57942.58262.5826
C21.39782.58262.58261.57941.5794
Cl31.57942.58262.72984.04652.9870
Cl41.57942.58262.72982.98704.0465
Cl52.58261.57944.04652.98702.7298
Cl62.58261.57942.98704.04652.7298

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 120.207 C1 C2 Cl6 120.207
C2 C1 Cl3 120.207 C2 C1 Cl4 120.207
Cl3 C1 Cl4 119.586 Cl5 C2 Cl6 119.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.028      
2 C 0.028      
3 Cl -0.014      
4 Cl -0.014      
5 Cl -0.014      
6 Cl -0.014      


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 -60.907 0.000 0.000
y 0.000 -58.337 0.000
z 0.000 0.000 -60.097
Traceless
 xyz
x -1.690 0.000 0.000
y 0.000 2.165 0.000
z 0.000 0.000 -0.475
Polar
3z2-r2-0.950
x2-y2-2.570
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.694 0.000 0.000
y 0.000 12.351 0.000
z 0.000 0.000 13.186


<r2> (average value of r2) Å2
<r2> 356.859
(<r2>)1/2 18.891