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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1916.987315
Energy at 298.15K-1916.987396
Nuclear repulsion energy495.061821
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 mPW1PW91/6-31G(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 1658 1583 0.00      
2 Ag 466 445 0.00      
3 Ag 239 228 0.00      
4 Au 101 97 0.00      
5 B1u 805 768 73.47      
6 B1u 317 303 0.01      
7 B2g 551 526 0.00      
8 B2u 941 898 197.17      
9 B2u 177 169 0.85      
10 B3g 1013 967 0.00      
11 B3g 355 339 0.00      
12 B3u 299 285 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 3460.3 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 3303.5 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 mPW1PW91/6-31G(2df,p)
ABC
0.05774 0.04667 0.02581

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.671
C2 0.000 0.000 -0.671
Cl3 0.000 1.445 1.583
Cl4 0.000 -1.445 1.583
Cl5 0.000 -1.445 -1.583
Cl6 0.000 1.445 -1.583

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.34161.70851.70852.67702.6770
C21.34162.67702.67701.70851.7085
Cl31.70852.67702.88944.28613.1657
Cl41.70852.67702.88943.16574.2861
Cl52.67701.70854.28613.16572.8894
Cl62.67701.70853.16574.28612.8894

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.264 C1 C2 Cl6 122.264
C2 C1 Cl3 122.264 C2 C1 Cl4 122.264
Cl3 C1 Cl4 115.473 Cl5 C2 Cl6 115.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.068      
2 C 0.068      
3 Cl -0.034      
4 Cl -0.034      
5 Cl -0.034      
6 Cl -0.034      


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 -60.559 0.000 0.000
y 0.000 -57.775 0.000
z 0.000 0.000 -59.546
Traceless
 xyz
x -1.898 0.000 0.000
y 0.000 2.277 0.000
z 0.000 0.000 -0.379
Polar
3z2-r2-0.758
x2-y2-2.784
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.677 0.000 0.000
y 0.000 11.999 0.000
z 0.000 0.000 13.117


<r2> (average value of r2) Å2
<r2> 354.728
(<r2>)1/2 18.834