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All results from a given calculation for CHClCCl2 (Trichloroethylene)

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 CS 1A'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-1448.075882
Energy at 298.15K-1448.076743
HF Energy-1447.714519
Nuclear repulsion energy303.953104
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' 3260 3159 9.64      
2 A' 1685 1633 4.39      
3 A' 1291 1251 10.06      
4 A' 849 823 73.02      
5 A' 731 709 62.39      
6 A' 557 540 11.43      
7 A' 344 334 0.01      
8 A' 244 237 0.81      
9 A' 164 159 1.35      
10 A" 870 844 36.51      
11 A" 456 441 5.52      
12 A" 194 188 1.59      

Unscaled Zero Point Vibrational Energy (zpe) 5322.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 5158.3 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 QCISD/3-21G
ABC
0.11920 0.04651 0.03346

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.099 -0.298 0.000
C2 0.000 0.443 0.000
H3 -2.096 0.122 0.000
Cl4 -1.064 -2.129 0.000
Cl5 -0.123 2.273 0.000
Cl6 1.698 -0.202 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 Cl6
C11.32541.08211.83172.74942.7987
C21.32542.12102.78371.83361.8169
H31.08212.12102.47642.91913.8085
Cl41.83172.78372.47644.50123.3675
Cl52.74941.83362.91914.50123.0733
Cl62.79871.81693.80853.36753.0733

picture of Trichloroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 120.139 C1 C2 Cl6 125.184
C2 C1 H3 123.206 C2 C1 Cl4 122.894
H3 C1 Cl4 113.900 Cl5 C2 Cl6 114.677
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability