return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHClCCl2 (Trichloroethylene)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-1456.784388
Energy at 298.15K-1456.785517
HF Energy-1456.784388
Nuclear repulsion energy317.835830
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 PBE1PBE/6-31G*
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' 3279 3116 13.69      
2 A' 1690 1606 12.08      
3 A' 1297 1233 9.77      
4 A' 967 919 113.02      
5 A' 877 833 118.03      
6 A' 652 619 13.87      
7 A' 399 379 0.11      
8 A' 285 271 0.35      
9 A' 174 166 0.90      
10 A" 818 777 30.60      
11 A" 484 460 4.07      
12 A" 210 200 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 5565.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5288.6 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 PBE1PBE/6-31G*
ABC
0.12974 0.05081 0.03651

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.030 -0.408 0.000
C2 0.000 0.441 0.000
H3 -2.049 -0.040 0.000
Cl4 -0.872 -2.113 0.000
Cl5 -0.288 2.141 0.000
Cl6 1.644 -0.038 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 Cl6
C11.33511.08311.71142.65552.7000
C21.33512.10462.69831.72451.7124
H31.08312.10462.38292.80363.6930
Cl41.71142.69832.38294.29373.2616
Cl52.65551.72452.80364.29372.9119
Cl62.70001.71243.69303.26162.9119

picture of Trichloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 119.898 C1 C2 Cl6 124.272
C2 C1 H3 120.630 C2 C1 Cl4 124.209
H3 C1 Cl4 115.162 Cl5 C2 Cl6 115.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.272      
2 C -0.217      
3 H 0.252      
4 Cl 0.058      
5 Cl 0.078      
6 Cl 0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.917 0.244 0.000 0.949
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.762 -0.877 0.000
y -0.877 -49.130 0.000
z 0.000 0.000 -49.714
Traceless
 xyz
x 3.660 -0.877 0.000
y -0.877 -1.392 0.000
z 0.000 0.000 -2.268
Polar
3z2-r2-4.536
x2-y23.368
xy-0.877
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.076 0.785 0.000
y 0.785 10.780 0.000
z 0.000 0.000 3.441


<r2> (average value of r2) Å2
<r2> 256.969
(<r2>)1/2 16.030