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: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-1917.592777
Energy at 298.15K 
HF Energy-1917.309148
Nuclear repulsion energy530.535757
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 B2PLYP/6-311G**
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' 3129 3129 5.99 89.63 0.07 0.13
2 A' 1470 1470 4.76 6.81 0.69 0.82
3 A' 1350 1350 14.31 3.00 0.69 0.82
4 A' 1079 1079 12.62 2.57 0.23 0.37
5 A' 823 823 41.76 24.61 0.46 0.63
6 A' 752 752 150.51 0.64 0.04 0.07
7 A' 554 554 21.78 8.58 0.13 0.23
8 A' 386 386 1.96 11.01 0.17 0.29
9 A' 315 315 0.97 5.06 0.75 0.86
10 A' 248 248 0.00 3.75 0.71 0.83
11 A' 157 157 0.67 0.75 0.67 0.80
12 A" 3198 3198 0.01 56.85 0.75 0.86
13 A" 1259 1259 9.97 3.49 0.75 0.86
14 A" 995 995 62.31 1.72 0.75 0.86
15 A" 723 723 111.97 5.98 0.75 0.86
16 A" 344 344 1.66 3.63 0.75 0.86
17 A" 252 252 0.45 2.40 0.75 0.86
18 A" 117 117 1.06 1.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8574.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8574.6 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 B2PLYP/6-311G**
ABC
0.06116 0.03610 0.03419

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.274 0.281 0.000
C2 -1.252 0.371 0.000
Cl3 -2.069 -1.214 0.000
Cl4 0.866 1.979 0.000
Cl5 0.866 -0.551 1.461
Cl6 0.866 -0.551 -1.461
H7 -1.565 0.907 0.892
H8 -1.565 0.907 -0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52842.77941.79831.78241.78242.13792.1379
C21.52841.78352.65912.73342.73341.08681.0868
Cl32.77941.78354.33723.34523.34522.35552.3555
Cl41.79832.65914.33722.92142.92142.80312.8031
Cl51.78242.73343.34522.92142.92122.89213.6844
Cl61.78242.73343.34522.92142.92123.68442.8921
H72.13791.08682.35552.80312.89213.68441.7839
H82.13791.08682.35552.80313.68442.89211.7839

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 113.891 C1 C2 H7 108.493
C1 C2 H8 108.493 C2 C1 Cl4 105.846
C2 C1 Cl5 111.066 C2 C1 Cl6 111.066
Cl3 C2 H7 107.818 Cl3 C2 H8 107.818
Cl4 C1 Cl5 109.348 Cl4 C1 Cl6 109.348
Cl5 C1 Cl6 110.062 H7 C2 H8 110.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.359      
2 C -0.202      
3 Cl -0.038      
4 Cl 0.050      
5 Cl 0.071      
6 Cl 0.071      
7 H 0.203      
8 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.770 1.298 0.000 1.509
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.950 -2.910 -0.017
y -2.910 -63.619 0.013
z -0.017 0.013 -63.074
Traceless
 xyz
x -1.603 -2.910 -0.017
y -2.910 0.393 0.013
z -0.017 0.013 1.210
Polar
3z2-r22.421
x2-y2-1.331
xy-2.910
xz-0.017
yz0.013


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.423 1.350 -0.000
y 1.350 10.606 0.001
z -0.000 0.001 8.927


<r2> (average value of r2) Å2
<r2> 344.748
(<r2>)1/2 18.567