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 CH2ClCCl3 (1,1,1,2-tetrachloroethane)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-1918.125970
Energy at 298.15K 
HF Energy-1918.125970
Nuclear repulsion energy532.776565
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 B3PW91/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 A' 3101 2982 5.71      
2 A' 1451 1395 6.92      
3 A' 1300 1250 9.12      
4 A' 1068 1027 14.09      
5 A' 809 778 29.68      
6 A' 748 719 147.80      
7 A' 552 531 20.10      
8 A' 380 365 2.27      
9 A' 306 294 0.98      
10 A' 238 229 0.02      
11 A' 149 143 0.60      
12 A" 3168 3046 0.09      
13 A" 1221 1174 12.78      
14 A" 964 927 51.22      
15 A" 709 682 99.63      
16 A" 331 319 1.44      
17 A" 240 231 0.72      
18 A" 107 103 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 8421.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 8098.0 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 B3PW91/cc-pVTZ
ABC
0.06173 0.03638 0.03451

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.268 0.279 0.000
C2 -1.252 0.372 0.000
Cl3 -2.063 -1.207 0.000
Cl4 0.865 1.967 0.000
Cl5 0.865 -0.549 1.452
Cl6 0.865 -0.549 -1.452
H7 -1.565 0.911 0.891
H8 -1.565 0.911 -0.891

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52332.76401.79091.77491.77492.13402.1340
C21.52331.77462.65092.72752.72751.08721.0872
Cl32.76401.77464.31803.33343.33342.35052.3505
Cl41.79092.65094.31802.90532.90532.79562.7956
Cl51.77492.72753.33342.90532.90462.88953.6778
Cl61.77492.72753.33342.90532.90463.67782.8895
H72.13401.08722.35052.79562.88953.67781.7823
H82.13401.08722.35052.79563.67782.88951.7823

picture of 1,1,1,2-tetrachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl3 113.662 C1 C2 H7 108.509
C1 C2 H8 108.509 C2 C1 Cl4 105.951
C2 C1 Cl5 111.348 C2 C1 Cl6 111.348
Cl3 C2 H7 108.019 Cl3 C2 H8 108.019
Cl4 C1 Cl5 109.130 Cl4 C1 Cl6 109.130
Cl5 C1 Cl6 109.823 H7 C2 H8 110.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.013      
2 C -0.093      
3 Cl -0.113      
4 Cl -0.051      
5 Cl -0.032      
6 Cl -0.032      
7 H 0.154      
8 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.724 1.243 0.000 1.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.692 -2.729 0.000
y -2.729 -61.725 0.000
z 0.000 0.000 -61.222
Traceless
 xyz
x -1.218 -2.729 0.000
y -2.729 0.232 0.000
z 0.000 0.000 0.986
Polar
3z2-r21.972
x2-y2-0.967
xy-2.729
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.938 1.257 0.000
y 1.257 11.471 0.000
z 0.000 0.000 10.023


<r2> (average value of r2) Å2
<r2> 340.914
(<r2>)1/2 18.464