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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-1916.857296
Energy at 298.15K-1916.857106
Nuclear repulsion energy484.290635
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 BLYP/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 1550 1538 0.00      
2 Ag 424 421 0.00      
3 Ag 233 231 0.00      
4 Au 92 91 0.00      
5 B1u 730 724 78.40      
6 B1u 304 302 0.04      
7 B2g 492 488 0.00      
8 B2u 826 819 237.25      
9 B2u 174 172 0.96      
10 B3g 909 902 0.00      
11 B3g 328 326 0.00      
12 B3u 281 279 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 3170.6 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 3146.2 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 BLYP/6-31G**
ABC
0.05531 0.04462 0.02470

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/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 1.476 1.619
Cl4 0.000 -1.476 1.619
Cl5 0.000 -1.476 -1.619
Cl6 0.000 1.476 -1.619

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35981.74961.74962.73212.7321
C21.35982.73212.73211.74961.7496
Cl31.74962.73212.95224.38203.2383
Cl41.74962.73212.95223.23834.3820
Cl52.73211.74964.38203.23832.9522
Cl62.73211.74963.23834.38202.9522

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.469 C1 C2 Cl6 122.469
C2 C1 Cl3 122.469 C2 C1 Cl4 122.469
Cl3 C1 Cl4 115.063 Cl5 C2 Cl6 115.063
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 C -0.160      
3 Cl 0.080      
4 Cl 0.080      
5 Cl 0.080      
6 Cl 0.080      


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 -61.143 0.000 0.000
y 0.000 -58.445 0.000
z 0.000 0.000 -59.956
Traceless
 xyz
x -1.943 0.000 0.000
y 0.000 2.105 0.000
z 0.000 0.000 -0.162
Polar
3z2-r2-0.323
x2-y2-2.698
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 369.367
(<r2>)1/2 19.219