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: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-996.305609
Energy at 298.15K-996.307565
HF Energy-995.830259
Nuclear repulsion energy175.827082
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 CISD/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 3357 3108 0.00      
2 Ag 1768 1637 0.00      
3 Ag 1381 1279 0.00      
4 Ag 914 846 0.00      
5 Ag 370 343 0.00      
6 Au 999 925 68.29      
7 Au 227 210 0.77      
8 Bg 847 784 0.00      
9 Bu 3351 3103 14.17      
10 Bu 1309 1212 20.30      
11 Bu 883 817 114.58      
12 Bu 252 233 4.22      

Unscaled Zero Point Vibrational Energy (zpe) 7829.1 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 7248.2 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 CISD/6-31G*
ABC
1.79109 0.05130 0.04987

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 0.000
C2 0.000 -0.661 0.000
H3 0.897 1.259 0.000
H4 -0.897 -1.259 0.000
Cl5 -1.470 1.567 0.000
Cl6 1.470 -1.567 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32131.07802.11871.72662.6687
C21.32132.11871.07802.66871.7266
H31.07802.11873.09132.38642.8833
H42.11871.07803.09132.88332.3864
Cl51.72662.66872.38642.88334.2965
Cl62.66871.72662.88332.38644.2965

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 123.707 C1 C2 Cl6 121.660
C2 C1 H3 123.707 C2 C1 Cl5 121.660
H3 C1 Cl5 114.633 H4 C2 Cl6 114.633
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability