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All results from a given calculation for C2Cl4 (Tetrachloroethylene)

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-134.416199
Energy at 298.15K-134.416311
Nuclear repulsion energy142.332357
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/LANL2DZ
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 1837 1654 0.00      
2 Ag 437 393 0.00      
3 Ag 245 221 0.00      
4 Au 105 95 0.00      
5 B1u 771 694 80.78      
6 B1u 323 291 0.30      
7 B2g 605 545 0.00      
8 B2u 911 820 143.94      
9 B2u 184 166 2.19      
10 B3g 1013 912 0.00      
11 B3g 362 325 0.00      
12 B3u 314 283 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 3553.8 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 3198.1 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/LANL2DZ
ABC
0.05473 0.04416 0.02444

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.660
C2 0.000 0.000 -0.660
Cl3 0.000 1.484 1.629
Cl4 0.000 -1.484 1.629
Cl5 0.000 -1.484 -1.629
Cl6 0.000 1.484 -1.629

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6
C11.32021.77241.77242.72822.7282
C21.32022.72822.72821.77241.7724
Cl31.77242.72822.96794.40743.2583
Cl41.77242.72822.96793.25834.4074
Cl52.72821.77244.40743.25832.9679
Cl62.72821.77243.25834.40742.9679

picture of Tetrachloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 123.146 C1 C2 Cl6 123.146
C2 C1 Cl3 123.146 C2 C1 Cl4 123.146
Cl3 C1 Cl4 113.708 Cl5 C2 Cl6 113.708
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.083      
2 C -0.083      
3 Cl 0.041      
4 Cl 0.041      
5 Cl 0.041      
6 Cl 0.041      


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 -59.383 0.000 0.000
y 0.000 -60.596 0.000
z 0.000 0.000 -61.579
Traceless
 xyz
x 1.705 0.000 0.000
y 0.000 -0.115 0.000
z 0.000 0.000 -1.590
Polar
3z2-r2-3.180
x2-y21.213
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.123 0.000 0.000
y 0.000 10.097 0.000
z 0.000 0.000 9.781


<r2> (average value of r2) Å2
<r2> 179.005
(<r2>)1/2 13.379