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: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-997.845272
Energy at 298.15K-997.847402
Nuclear repulsion energy184.867395
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 mPW1PW91/6-311G**
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 3255 3114 1.55      
2 A1 1683 1610 38.64      
3 A1 1225 1172 0.01      
4 A1 732 701 23.01      
5 A1 170 162 0.23      
6 A2 916 876 0.00      
7 A2 426 407 0.00      
8 B1 720 688 76.61      
9 B2 3234 3094 15.35      
10 B2 1326 1268 23.37      
11 B2 873 836 104.42      
12 B2 584 559 4.93      

Unscaled Zero Point Vibrational Energy (zpe) 7571.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 7243.3 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 mPW1PW91/6-311G**
ABC
0.39384 0.08221 0.06801

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 0.954
C2 0.000 -0.663 0.954
H3 0.000 1.211 1.885
H4 0.000 -1.211 1.885
Cl5 0.000 1.655 -0.448
Cl6 0.000 -1.655 -0.448

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32501.08052.09211.71752.7085
C21.32502.09211.08052.70851.7175
H31.08052.09212.42222.37453.6953
H42.09211.08052.42223.69532.3745
Cl51.71752.70852.37453.69533.3100
Cl62.70851.71753.69532.37453.3100

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 120.511 C1 C2 Cl6 125.300
C2 C1 H3 120.511 C2 C1 Cl5 125.300
H3 C1 Cl5 114.189 H4 C2 Cl6 114.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.180      
2 C -0.180      
3 H 0.194      
4 H 0.194      
5 Cl -0.014      
6 Cl -0.014      


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 1.996 1.996
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.941 0.000 0.000
y 0.000 -37.711 0.000
z 0.000 0.000 -32.755
Traceless
 xyz
x -3.708 0.000 0.000
y 0.000 -1.863 0.000
z 0.000 0.000 5.570
Polar
3z2-r211.141
x2-y2-1.230
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.857 0.000 0.000
y 0.000 8.792 0.000
z 0.000 0.000 6.416


<r2> (average value of r2) Å2
<r2> 148.949
(<r2>)1/2 12.204