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All results from a given calculation for CH2ClCHCl2 (1,1,2-trichloroethane)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1449.830455
Energy at 298.15K-1449.834365
HF Energy-1449.246265
Nuclear repulsion energy337.451495
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 MP2/3-21G*
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 3226 3069 0.05      
2 A 3205 3049 0.68      
3 A 3153 2999 2.54      
4 A 1561 1485 9.47      
5 A 1403 1335 5.27      
6 A 1368 1302 11.47      
7 A 1297 1233 18.19      
8 A 1249 1188 2.40      
9 A 1047 996 0.74      
10 A 982 934 23.78      
11 A 786 748 12.68      
12 A 729 693 105.51      
13 A 665 633 29.78      
14 A 399 380 7.44      
15 A 337 321 0.71      
16 A 261 249 1.38      
17 A 185 176 4.53      
18 A 112 107 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 10982.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 10447.3 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 MP2/3-21G*
ABC
0.11635 0.04799 0.03517

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.658 -0.862 0.396
C2 -0.416 -0.085 -0.375
Cl3 2.308 -0.312 -0.090
H4 0.541 -0.702 1.467
H5 0.578 -1.922 0.154
Cl6 -2.017 -0.841 -0.011
Cl7 -0.426 1.650 0.083
H8 -0.259 -0.145 -1.450

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.53321.80541.08961.09042.70612.75362.1820
C21.53322.74782.16592.15401.80801.79491.0873
Cl31.80542.74782.38722.37574.35793.36962.9097
H41.08962.16592.38721.79282.95772.89543.0756
H51.09042.15402.37571.79282.81583.71092.5354
Cl62.70611.80804.35792.95772.81582.95732.3761
Cl72.75361.79493.36962.89543.71092.95732.3664
H82.18201.08732.90973.07562.53542.37612.3664

picture of 1,1,2-trichloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 107.896 C1 C2 Cl7 111.418
C1 C2 H8 111.614 C2 C1 Cl3 110.515
C2 C1 H4 110.190 C2 C1 H5 109.209
Cl3 C1 H4 108.558 Cl3 C1 H5 107.681
H4 C1 H5 110.655 Cl6 C2 Cl7 110.328
Cl6 C2 H8 107.688 Cl7 C2 H8 107.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability