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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-1916.857090
HF Energy-1916.857296
Nuclear repulsion energy484.314131
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 1551 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 78.39      
6 B1u 304 302 0.04      
7 B2g 492 488 0.00      
8 B2u 826 819 237.20      
9 B2u 174 172 0.96      
10 B3g 909 902 0.00      
11 B3g 328 326 0.00      
12 B3u 281 278 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 3170.9 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 3145.3 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
0.05532 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 0.708
C2 0.000 0.000 -0.708
Cl3 0.000 1.364 1.504
Cl4 0.000 -1.364 1.504
Cl5 0.000 -1.364 -1.504
Cl6 0.000 1.364 -1.504

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.41631.57891.57892.59852.5985
C21.41632.59852.59851.57891.5789
Cl31.57892.59852.72774.06013.0073
Cl41.57892.59852.72773.00734.0601
Cl52.59851.57894.06013.00732.7277
Cl62.59851.57893.00734.06012.7277

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 120.254 C1 C2 Cl6 120.254
C2 C1 Cl3 120.254 C2 C1 Cl4 120.254
Cl3 C1 Cl4 119.492 Cl5 C2 Cl6 119.492
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 -61.142 0.000 0.000
y 0.000 -58.445 0.000
z 0.000 0.000 -59.955
Traceless
 xyz
x -1.942 0.000 0.000
y 0.000 2.103 0.000
z 0.000 0.000 -0.161
Polar
3z2-r2-0.323
x2-y2-2.697
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.155 0.000 0.000
y 0.000 11.935 0.000
z 0.000 0.000 12.468


<r2> (average value of r2) Å2
<r2> 369.336
(<r2>)1/2 19.218