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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-1449.884670
Energy at 298.15K-1449.888539
HF Energy-1449.245848
Nuclear repulsion energy336.360949
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 QCISD/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 3175 3051 0.22      
2 A 3159 3036 0.44      
3 A 3106 2985 3.04      
4 A 1543 1483 9.04      
5 A 1388 1334 4.78      
6 A 1353 1300 10.94      
7 A 1282 1232 18.29      
8 A 1236 1188 2.21      
9 A 1034 994 0.62      
10 A 969 931 21.60      
11 A 778 748 14.09      
12 A 719 691 93.30      
13 A 657 631 25.52      
14 A 394 379 6.84      
15 A 333 320 0.67      
16 A 258 248 1.30      
17 A 184 177 4.25      
18 A 109 105 3.79      

Unscaled Zero Point Vibrational Energy (zpe) 10837.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 10416.2 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 QCISD/3-21G*
ABC
0.11558 0.04765 0.03492

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.664 -0.859 0.402
C2 -0.417 -0.086 -0.374
Cl3 2.318 -0.310 -0.092
H4 0.549 -0.693 1.476
H5 0.585 -1.924 0.167
Cl6 -2.020 -0.848 -0.012
Cl7 -0.436 1.655 0.083
H8 -0.256 -0.147 -1.451

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.53831.81141.09281.09352.71592.76222.1872
C21.53832.75782.17332.16161.81211.80021.0900
Cl31.81142.75782.39432.38234.37203.38702.9148
H41.09282.17332.39431.79722.97342.90223.0838
H51.09352.16162.38231.79722.82423.72242.5456
Cl62.71591.81214.37202.97342.82422.96392.3818
Cl72.76221.80023.38702.90223.72242.96392.3731
H82.18721.09002.91483.08382.54562.38182.3731

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 108.032 C1 C2 Cl7 111.420
C1 C2 H8 111.509 C2 C1 Cl3 110.570
C2 C1 H4 110.238 C2 C1 H5 109.278
Cl3 C1 H4 108.523 Cl3 C1 H5 107.615
H4 C1 H5 110.581 Cl6 C2 Cl7 110.271
Cl6 C2 H8 107.702 Cl7 C2 H8 107.849
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability