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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-1449.292121
Energy at 298.15K-1449.295773
HF Energy-1448.925817
Nuclear repulsion energy326.187158
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 3214 3115 0.53      
2 A 3200 3102 0.47      
3 A 3130 3033 0.82      
4 A 1531 1484 9.96      
5 A 1358 1316 5.67      
6 A 1304 1264 15.57      
7 A 1209 1172 22.31      
8 A 1189 1152 4.59      
9 A 1062 1029 2.60      
10 A 928 899 18.90      
11 A 716 694 22.89      
12 A 661 641 85.03      
13 A 604 586 24.85      
14 A 368 357 7.73      
15 A 302 293 0.41      
16 A 233 225 1.99      
17 A 172 167 5.67      
18 A 100 97 4.69      

Unscaled Zero Point Vibrational Energy (zpe) 10640.3 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 10312.6 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 QCISD/3-21G
ABC
0.10787 0.04492 0.03283

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 0.630 -0.872 0.436
C2 -0.392 -0.107 -0.381
Cl3 2.385 -0.345 -0.098
H4 0.547 -0.655 1.502
H5 0.570 -1.942 0.230
Cl6 -2.096 -0.866 -0.019
Cl7 -0.424 1.719 0.081
H8 -0.242 -0.165 -1.456

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.51591.90921.09031.09162.76372.81972.1999
C21.51592.80242.17462.16071.90031.88401.0869
Cl31.90922.80242.45612.43974.51253.49142.9633
H41.09032.17462.45611.80923.05722.93263.1002
H51.09162.16072.43971.80922.88603.79702.5807
Cl62.76371.90034.51253.05722.88603.08082.4483
Cl72.81971.88403.49142.93263.79703.08082.4390
H82.19991.08692.96333.10022.58072.44832.4390

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 107.462 C1 C2 Cl7 111.606
C1 C2 H8 114.379 C2 C1 Cl3 109.277
C2 C1 H4 112.073 C2 C1 H5 110.875
Cl3 C1 H4 106.732 Cl3 C1 H5 105.527
H4 C1 H5 112.027 Cl6 C2 Cl7 108.997
Cl6 C2 H8 106.910 Cl7 C2 H8 107.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability