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All results from a given calculation for CHClCCl2 (Trichloroethylene)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-55.470610
Energy at 298.15K-55.471857
Nuclear repulsion energy76.622664
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3411 3112 15.04      
2 A' 1800 1643 7.91      
3 A' 1388 1266 14.91      
4 A' 977 891 96.87      
5 A' 851 777 103.86      
6 A' 640 584 14.83      
7 A' 394 359 0.01      
8 A' 283 258 0.87      
9 A' 178 163 1.76      
10 A" 974 889 44.30      
11 A" 519 474 9.88      
12 A" 220 200 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 5817.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 5308.0 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/CEP-121G
ABC
0.12258 0.04812 0.03456

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.864 -0.562 0.000
C2 0.000 0.442 0.000
H3 -1.922 -0.400 0.000
Cl4 -0.406 -2.282 0.000
Cl5 -0.592 2.130 0.000
Cl6 1.766 0.277 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 Cl6
C11.32501.07011.77942.70582.7613
C21.32502.09852.75411.78841.7741
H31.07012.09852.41602.85853.7501
Cl41.77942.75412.41604.41553.3571
Cl52.70581.78842.85854.41552.9987
Cl62.76131.77413.75013.35712.9987

picture of Trichloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 119.973 C1 C2 Cl6 125.380
C2 C1 H3 121.998 C2 C1 Cl4 124.384
H3 C1 Cl4 113.618 Cl5 C2 Cl6 114.648
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.217      
2 C -0.288      
3 H 0.258      
4 Cl 0.035      
5 Cl 0.086      
6 Cl 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.487 0.118 0.000 1.492
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.717 0.173 0.000
y 0.173 -51.993 0.000
z 0.000 0.000 -49.042
Traceless
 xyz
x 4.800 0.173 0.000
y 0.173 -4.613 0.000
z 0.000 0.000 -0.187
Polar
3z2-r2-0.374
x2-y26.275
xy0.173
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.824 0.068 0.000
y 0.068 11.050 0.000
z 0.000 0.000 2.825


<r2> (average value of r2) Å2
<r2> 133.625
(<r2>)1/2 11.560