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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: BLYP/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 BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-1916.874748
Energy at 298.15K-1916.874568
Nuclear repulsion energy486.548145
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(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 1547 1538 0.00      
2 Ag 426 424 0.00      
3 Ag 229 228 0.00      
4 Au 93 92 0.00      
5 B1u 736 732 74.50      
6 B1u 300 298 0.02      
7 B2g 498 495 0.00      
8 B2u 832 828 210.96      
9 B2u 170 169 0.87      
10 B3g 905 900 0.00      
11 B3g 332 330 0.00      
12 B3u 280 278 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 3173.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 3155.7 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(2df,p)
ABC
0.05584 0.04502 0.02493

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.678
C2 0.000 0.000 -0.678
Cl3 0.000 1.469 1.612
Cl4 0.000 -1.469 1.612
Cl5 0.000 -1.469 -1.612
Cl6 0.000 1.469 -1.612

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35671.74051.74052.72092.7209
C21.35672.72092.72091.74051.7405
Cl31.74052.72092.93814.36173.2236
Cl41.74052.72092.93813.22364.3617
Cl52.72091.74054.36173.22362.9381
Cl62.72091.74053.22364.36172.9381

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.432 C1 C2 Cl6 122.432
C2 C1 Cl3 122.432 C2 C1 Cl4 122.432
Cl3 C1 Cl4 115.135 Cl5 C2 Cl6 115.135
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.147      
2 C 0.147      
3 Cl -0.073      
4 Cl -0.073      
5 Cl -0.073      
6 Cl -0.073      


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 -60.723 0.000 0.000
y 0.000 -58.183 0.000
z 0.000 0.000 -59.922
Traceless
 xyz
x -1.671 0.000 0.000
y 0.000 2.140 0.000
z 0.000 0.000 -0.469
Polar
3z2-r2-0.938
x2-y2-2.540
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.713 0.000 0.000
y 0.000 12.770 0.000
z 0.000 0.000 13.664


<r2> (average value of r2) Å2
<r2> 366.166
(<r2>)1/2 19.135