return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-996.377320
Energy at 298.15K-996.379212
HF Energy-995.829813
Nuclear repulsion energy175.278909
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3303 3100 0.00      
2 Ag 1718 1612 0.00      
3 Ag 1353 1270 0.00      
4 Ag 897 842 0.00      
5 Ag 362 340 0.00      
6 Au 958 899 67.41      
7 Au 220 206 0.67      
8 Bg 795 746 0.00      
9 Bu 3298 3096 13.19      
10 Bu 1285 1206 18.67      
11 Bu 868 815 103.88      
12 Bu 246 231 4.09      

Unscaled Zero Point Vibrational Energy (zpe) 7651.5 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 7181.7 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 MP3/6-31G*
ABC
1.76886 0.05102 0.04959

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.366 0.555 0.000
C2 0.366 -0.555 0.000
H3 -1.449 0.560 0.000
H4 1.449 -0.560 0.000
Cl5 0.366 2.123 0.000
Cl6 -0.366 -2.123 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32961.08242.13021.73062.6773
C21.32962.13021.08242.67731.7306
H31.08242.13023.10662.39492.8929
H42.13021.08243.10662.89292.3949
Cl51.73062.67732.39492.89294.3079
Cl62.67731.73062.89292.39494.3079

picture of Ethene, 1,2-dichloro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 123.729 C1 C2 Cl6 121.511
C2 C1 H3 123.729 C2 C1 Cl5 121.511
H3 C1 Cl5 114.760 H4 C2 Cl6 114.760
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability