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: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G2
 hartrees
Energy at 0K-1916.225237
Energy at 298.15K-1916.217372
HF Energy-1914.799003
Nuclear repulsion energy533.456934
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 HF/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' 3310 3119 6.35 79.63 0.10 0.18
2 A' 1616 1523 4.78 9.97 0.75 0.86
3 A' 1476 1391 20.78 2.68 0.63 0.77
4 A' 1168 1100 11.55 4.28 0.40 0.57
5 A' 925 871 65.20 31.01 0.58 0.73
6 A' 828 780 127.33 3.06 0.13 0.23
7 A' 600 565 23.18 11.96 0.09 0.17
8 A' 418 394 2.32 10.89 0.18 0.30
9 A' 336 317 1.10 4.67 0.74 0.85
10 A' 265 250 0.09 3.03 0.67 0.80
11 A' 168 158 0.77 0.62 0.69 0.81
12 A" 3382 3187 0.00 57.60 0.75 0.86
13 A" 1370 1291 12.68 6.96 0.75 0.86
14 A" 1086 1023 63.88 2.31 0.75 0.86
15 A" 823 776 92.14 12.10 0.75 0.86
16 A" 362 341 0.64 2.65 0.75 0.86
17 A" 269 253 1.33 1.70 0.75 0.86
18 A" 121 114 1.73 1.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9261.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 8726.2 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 MP2=FULL/6-31G*
ABC
0.06220 0.03670 0.03474

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.274 0.282 0.000
C2 -1.251 0.367 0.000
Cl3 -2.046 -1.211 0.000
Cl4 0.858 1.964 0.000
Cl5 0.858 -0.545 1.449
Cl6 0.858 -0.545 -1.449
H7 -1.561 0.911 0.892
H8 -1.561 0.911 -0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.52702.75831.78081.76781.76782.13512.1351
C21.52701.76642.64592.71672.71671.09011.0901
Cl32.75831.76644.30273.31353.31352.35202.3520
Cl41.78082.64594.30272.89712.89712.78572.7857
Cl51.76782.71673.31352.89712.89842.87823.6682
Cl61.76782.71673.31352.89712.89843.66822.8782
H72.13511.09012.35202.78572.87823.66821.7843
H82.13511.09012.35202.78573.66822.87821.7843

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 114.163 C1 C2 H7 108.467
C1 C2 H8 108.467 C2 C1 Cl4 105.996
C2 C1 Cl5 111.309 C2 C1 Cl6 111.309
Cl3 C2 H7 107.888 Cl3 C2 H8 107.888
Cl4 C1 Cl5 109.057 Cl4 C1 Cl6 109.057
Cl5 C1 Cl6 109.993 H7 C2 H8 109.932
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability