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-, (Z)-)

using model chemistry: B1B95/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-997.928844
Energy at 298.15K-997.930981
Nuclear repulsion energy186.233681
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 B1B95/cc-pVTZ
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 3252 3112 1.32      
2 A1 1681 1609 36.38      
3 A1 1207 1155 0.00      
4 A1 740 709 20.64      
5 A1 170 162 0.29      
6 A2 920 880 0.00      
7 A2 428 410 0.00      
8 B1 719 688 55.63      
9 B2 3230 3091 14.19      
10 B2 1318 1261 24.46      
11 B2 875 837 79.40      
12 B2 583 558 5.35      

Unscaled Zero Point Vibrational Energy (zpe) 7560.3 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 7236.0 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 B1B95/cc-pVTZ
ABC
0.39123 0.08453 0.06951

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.660 0.958
C2 0.000 -0.660 0.958
H3 0.000 1.211 1.885
H4 0.000 -1.211 1.885
Cl5 0.000 1.631 -0.449
Cl6 0.000 -1.631 -0.449

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32081.07752.08811.70962.6890
C21.32082.08811.07752.68901.7096
H31.07752.08812.42222.37113.6773
H42.08811.07752.42223.67732.3711
Cl51.70962.68902.37113.67733.2617
Cl62.68901.70963.67732.37113.2617

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 120.737 C1 C2 Cl6 124.585
C2 C1 H3 120.737 C2 C1 Cl5 124.585
H3 C1 Cl5 114.679 H4 C2 Cl6 114.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 C -0.114      
3 H 0.172      
4 H 0.172      
5 Cl -0.059      
6 Cl -0.059      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.877 1.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.128 0.000 0.000
y 0.000 -37.035 0.000
z 0.000 0.000 -32.351
Traceless
 xyz
x -3.435 0.000 0.000
y 0.000 -1.795 0.000
z 0.000 0.000 5.230
Polar
3z2-r210.461
x2-y2-1.093
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.053 0.000 0.000
y 0.000 9.338 0.000
z 0.000 0.000 6.991


<r2> (average value of r2) Å2
<r2> 145.961
(<r2>)1/2 12.081