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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-70.857354
Energy at 298.15K-70.857167
Nuclear repulsion energy104.761557
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 1613 1572 0.00      
2 Ag 409 398 0.00      
3 Ag 224 219 0.00      
4 Au 92 89 0.00      
5 B1u 714 695 70.79      
6 B1u 295 288 0.02      
7 B2g 508 495 0.00      
8 B2u 840 819 206.19      
9 B2u 168 164 1.38      
10 B3g 916 892 0.00      
11 B3g 325 317 0.00      
12 B3u 282 275 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 3192.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 3111.5 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 B3LYP/CEP-121G
ABC
0.05249 0.04277 0.02357

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

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 1.515 1.655
Cl4 0.000 -1.515 1.655
Cl5 0.000 -1.515 -1.655
Cl6 0.000 1.515 -1.655

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.35571.80301.80302.78172.7817
C21.35572.78172.78171.80301.8030
Cl31.80302.78173.03054.48763.3098
Cl41.80302.78173.03053.30984.4876
Cl52.78171.80304.48763.30983.0305
Cl62.78171.80303.30984.48763.0305

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.814 C1 C2 Cl6 122.814
C2 C1 Cl3 122.814 C2 C1 Cl4 122.814
Cl3 C1 Cl4 114.371 Cl5 C2 Cl6 114.371
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.367      
2 C -0.367      
3 Cl 0.183      
4 Cl 0.183      
5 Cl 0.183      
6 Cl 0.183      


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 -59.686 0.000 0.000
y 0.000 -57.811 0.000
z 0.000 0.000 -59.426
Traceless
 xyz
x -1.068 0.000 0.000
y 0.000 1.745 0.000
z 0.000 0.000 -0.678
Polar
3z2-r2-1.355
x2-y2-1.875
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.392 0.000 0.000
y 0.000 12.609 0.000
z 0.000 0.000 12.126


<r2> (average value of r2) Å2
<r2> 181.481
(<r2>)1/2 13.472