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: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-1918.324534
Energy at 298.15K 
HF Energy-1918.324534
Nuclear repulsion energy533.705945
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 B1B95/6-31+G**
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' 3136 3000 4.90 93.76 0.05 0.10
2 A' 1461 1398 7.53 6.91 0.75 0.86
3 A' 1329 1271 10.52 3.86 0.50 0.67
4 A' 1085 1038 13.63 3.18 0.21 0.35
5 A' 830 794 37.22 21.20 0.44 0.61
6 A' 767 734 156.13 0.94 0.21 0.35
7 A' 561 537 21.57 11.90 0.06 0.11
8 A' 388 371 2.29 10.14 0.16 0.27
9 A' 312 299 1.19 3.88 0.73 0.85
10 A' 241 231 0.07 2.60 0.65 0.79
11 A' 149 142 0.64 0.61 0.61 0.76
12 A" 3211 3072 0.36 53.74 0.75 0.86
13 A" 1240 1186 12.40 4.11 0.75 0.86
14 A" 984 941 61.43 1.32 0.75 0.86
15 A" 728 696 105.13 5.49 0.75 0.86
16 A" 338 324 1.03 2.45 0.75 0.86
17 A" 245 235 0.92 1.77 0.75 0.86
18 A" 109 104 1.15 1.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8556.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 8185.1 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 B1B95/6-31+G**
ABC
0.06188 0.03658 0.03466

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.273 0.281 0.000
C2 -1.251 0.371 0.000
Cl3 -2.051 -1.208 0.000
Cl4 0.860 1.968 0.000
Cl5 0.860 -0.549 1.451
Cl6 0.860 -0.549 -1.451
H7 -1.562 0.912 0.892
H8 -1.562 0.912 -0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52622.75951.78631.77201.77202.13562.1356
C21.52621.77032.64672.72192.72191.08831.0883
Cl32.75951.77034.30793.31873.31872.35132.3513
Cl41.78632.64674.30792.90502.90502.78872.7887
Cl51.77202.72193.31872.90502.90292.88373.6731
Cl61.77202.72193.31872.90502.90293.67312.8837
H72.13561.08832.35132.78872.88373.67311.7830
H82.13561.08832.35132.78873.67312.88371.7830

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 113.464 C1 C2 H7 108.369
C1 C2 H8 108.369 C2 C1 Cl4 105.802
C2 C1 Cl5 111.017 C2 C1 Cl6 111.017
Cl3 C2 H7 108.308 Cl3 C2 H8 108.308
Cl4 C1 Cl5 109.455 Cl4 C1 Cl6 109.455
Cl5 C1 Cl6 109.997 H7 C2 H8 110.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.295      
2 C -0.538      
3 Cl 0.077      
4 Cl 0.080      
5 Cl 0.091      
6 Cl 0.091      
7 H 0.247      
8 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.802 1.321 0.000 1.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.349 -2.907 0.000
y -2.907 -62.416 0.000
z 0.000 0.000 -61.868
Traceless
 xyz
x -1.207 -2.907 0.000
y -2.907 0.192 0.000
z 0.000 0.000 1.014
Polar
3z2-r22.029
x2-y2-0.933
xy-2.907
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.854 1.170 0.000
y 1.170 11.352 0.000
z 0.000 0.000 10.151


<r2> (average value of r2) Å2
<r2> 340.049
(<r2>)1/2 18.440