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All results from a given calculation for CHClCHCl (Ethene, 1,2-dichloro-, (Z)-)

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 C2V 1A1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-991.325809
Energy at 298.15K-991.327764
HF Energy-991.017073
Nuclear repulsion energy178.004863
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 A1 3254 3154 0.05      
2 A1 1663 1611 13.60      
3 A1 1219 1181 0.39      
4 A1 609 590 18.40      
5 A1 164 159 0.35      
6 A2 949 920 0.00      
7 A2 392 380 0.00      
8 B1 741 718 73.99      
9 B2 3227 3128 10.58      
10 B2 1327 1286 33.07      
11 B2 768 744 44.93      
12 B2 513 497 8.14      

Unscaled Zero Point Vibrational Energy (zpe) 7412.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 7184.2 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
0.33849 0.07917 0.06417

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 1.043
C2 0.000 -0.664 1.043
H3 0.000 1.257 1.949
H4 0.000 -1.257 1.949
Cl5 0.000 1.688 -0.483
Cl6 0.000 -1.688 -0.483

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32731.08342.12381.83712.8026
C21.32732.12381.08342.80261.8371
H31.08342.12382.51392.46973.8189
H42.12381.08342.51393.81892.4697
Cl51.83712.80262.46973.81893.3750
Cl62.80261.83713.81892.46973.3750

picture of Ethene, 1,2-dichloro-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 123.203 C1 C2 Cl6 123.872
C2 C1 H3 123.203 C2 C1 Cl5 123.872
H3 C1 Cl5 112.925 H4 C2 Cl6 112.925
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability