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: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-1915.639256
Energy at 298.15K 
HF Energy-1914.798715
Nuclear repulsion energy532.990334
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 MP3/6-31G*
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' 3180 2984 4.18      
2 A' 1526 1432 7.11      
3 A' 1395 1309 10.38      
4 A' 1130 1060 10.63      
5 A' 887 833 47.75      
6 A' 806 757 100.94      
7 A' 578 542 18.77      
8 A' 402 377 1.92      
9 A' 324 304 1.16      
10 A' 254 238 0.11      
11 A' 160 150 0.64      
12 A" 3248 3049 0.01      
13 A" 1292 1213 9.17      
14 A" 1034 971 57.64      
15 A" 781 733 76.67      
16 A" 350 328 0.62      
17 A" 258 243 1.15      
18 A" 119 111 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 8860.8 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 8316.8 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 MP3/6-31G*
ABC
0.06182 0.03643 0.03450

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.274 0.281 0.000
C2 -1.254 0.369 0.000
Cl3 -2.060 -1.211 0.000
Cl4 0.863 1.967 0.000
Cl5 0.863 -0.546 1.453
Cl6 0.863 -0.546 -1.453
H7 -1.564 0.912 0.892
H8 -1.564 0.912 -0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 H7 H8
C11.53092.76991.78531.77291.77292.13852.1385
C21.53091.77282.65292.72612.72611.08931.0893
Cl32.76991.77284.31733.33103.33102.35522.3552
Cl41.78532.65294.31732.90282.90282.79292.7929
Cl51.77292.72613.33102.90282.90602.88723.6766
Cl61.77292.72613.33102.90282.90603.67662.8872
H72.13851.08932.35522.79292.88723.67661.7831
H82.13851.08932.35522.79293.67662.88721.7831

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 113.753 C1 C2 H7 108.221
C1 C2 H8 108.221 C2 C1 Cl4 105.999
C2 C1 Cl5 110.997 C2 C1 Cl6 110.997
Cl3 C2 H7 108.377 Cl3 C2 H8 108.377
Cl4 C1 Cl5 109.334 Cl4 C1 Cl6 109.334
Cl5 C1 Cl6 110.080 H7 C2 H8 109.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability