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: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-1908.038727
Energy at 298.15K 
HF Energy-1908.038727
Nuclear repulsion energy515.195312
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 PBEPBE/3-21G
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' 3069 3041 2.90 99.41 0.08 0.14
2 A' 1452 1439 12.86 11.02 0.73 0.84
3 A' 1266 1254 4.45 14.61 0.57 0.73
4 A' 1064 1054 21.70 21.24 0.25 0.40
5 A' 719 713 61.87 39.76 0.39 0.56
6 A' 674 667 153.07 1.84 0.22 0.36
7 A' 501 497 31.07 12.54 0.07 0.13
8 A' 341 338 2.64 17.62 0.17 0.29
9 A' 282 280 1.75 6.82 0.75 0.86
10 A' 218 216 0.14 5.88 0.72 0.84
11 A' 140 139 1.17 1.16 0.65 0.79
12 A" 3147 3119 2.22 67.19 0.75 0.86
13 A" 1216 1205 20.60 5.37 0.75 0.86
14 A" 921 912 59.59 5.76 0.75 0.86
15 A" 650 644 144.50 5.23 0.75 0.86
16 A" 321 318 1.24 3.94 0.75 0.86
17 A" 222 220 1.20 4.49 0.75 0.86
18 A" 102 101 1.65 2.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8152.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 8077.9 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 PBEPBE/3-21G
ABC
0.05770 0.03445 0.03224

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.241 0.298 0.000
C2 -1.267 0.398 0.000
Cl3 -2.062 -1.305 0.000
Cl4 0.871 2.071 0.000
Cl5 0.871 -0.559 1.518
Cl6 0.871 -0.559 -1.518
H7 -1.612 0.905 0.911
H8 -1.612 0.905 -0.911

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.51202.80611.88151.85361.85362.15242.1524
C21.51201.87862.71562.79172.79171.09801.0980
Cl32.80611.87864.47213.38593.38592.43212.4321
Cl41.88152.71564.47213.03673.03672.89062.8906
Cl51.85362.79173.38593.03673.03592.94623.7695
Cl61.85362.79173.38593.03673.03593.76952.9462
H72.15241.09802.43212.89062.94623.76951.8213
H82.15241.09802.43212.89063.76952.94621.8213

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 111.247 C1 C2 H7 110.098
C1 C2 H8 110.098 C2 C1 Cl4 105.793
C2 C1 Cl5 111.690 C2 C1 Cl6 111.690
Cl3 C2 H7 106.626 Cl3 C2 H8 106.626
Cl4 C1 Cl5 108.780 Cl4 C1 Cl6 108.780
Cl5 C1 Cl6 109.950 H7 C2 H8 112.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.645      
2 C -0.529      
3 Cl 0.053      
4 Cl 0.136      
5 Cl 0.175      
6 Cl 0.175      
7 H 0.317      
8 H 0.317      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.129 1.563 0.000 1.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.273 -3.783 0.000
y -3.783 -64.472 0.000
z 0.000 0.000 -63.059
Traceless
 xyz
x -0.508 -3.783 0.000
y -3.783 -0.806 0.000
z 0.000 0.000 1.314
Polar
3z2-r22.627
x2-y20.198
xy-3.783
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.409 1.707 0.000
y 1.707 10.431 0.000
z 0.000 0.000 8.387


<r2> (average value of r2) Å2
<r2> 361.713
(<r2>)1/2 19.019