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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-1913.783578
Energy at 298.15K-1913.783908
Nuclear repulsion energy494.940538
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 HF/aug-cc-pVTZ
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 1804 1642 0.00      
2 Ag 480 437 0.00      
3 Ag 257 234 0.00      
4 Au 109 100 0.00      
5 B1u 836 761 75.94      
6 B1u 337 306 0.03      
7 B2g 629 573 0.00      
8 B2u 983 895 160.54      
9 B2u 194 176 0.86      
10 B3g 1088 990 0.00      
11 B3g 375 342 0.00      
12 B3u 326 297 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 3708.9 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 3376.6 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 HF/aug-cc-pVTZ
ABC
0.05797 0.04645 0.02579

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.658
C2 0.000 0.000 -0.658
Cl3 0.000 1.442 1.588
Cl4 0.000 -1.442 1.588
Cl5 0.000 -1.442 -1.588
Cl6 0.000 1.442 -1.588

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.31691.71531.71532.66902.6690
C21.31692.66902.66901.71531.7153
Cl31.71532.66902.88384.28923.1750
Cl41.71532.66902.88383.17504.2892
Cl52.66901.71534.28923.17502.8838
Cl62.66901.71533.17504.28922.8838

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.796 C1 C2 Cl6 122.796
C2 C1 Cl3 122.796 C2 C1 Cl4 122.796
Cl3 C1 Cl4 114.409 Cl5 C2 Cl6 114.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.413      
2 C 0.413      
3 Cl -0.207      
4 Cl -0.207      
5 Cl -0.207      
6 Cl -0.207      


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 -61.817 0.000 0.000
y 0.000 -59.546 0.000
z 0.000 0.000 -61.457
Traceless
 xyz
x -1.315 0.000 0.000
y 0.000 2.090 0.000
z 0.000 0.000 -0.775
Polar
3z2-r2-1.550
x2-y2-2.271
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.650 0.000 0.000
y 0.000 12.764 0.000
z 0.000 0.000 14.363


<r2> (average value of r2) Å2
<r2> 356.013
(<r2>)1/2 18.868