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 CH2CCl2 (Ethene, 1,1-dichloro-)

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-995.893125
Energy at 298.15K-995.895415
Nuclear repulsion energy190.415769
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 HF/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 3320 3016 0.87      
2 A1 1826 1659 66.58      
3 A1 1522 1383 0.08      
4 A1 646 586 19.06      
5 A1 324 295 0.00      
6 A2 773 702 0.00      
7 B1 1053 957 52.69      
8 B1 515 468 8.06      
9 B2 3417 3104 0.02      
10 B2 1203 1093 113.50      
11 B2 864 785 90.85      
12 B2 409 372 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 7935.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 7209.8 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 HF/6-311G**
ABC
0.25216 0.11282 0.07795

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.733
C2 0.000 0.000 0.424
H3 0.000 0.925 2.277
H4 0.000 -0.925 2.277
Cl5 0.000 1.453 -0.515
Cl6 0.000 -1.453 -0.515

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.30891.07291.07292.67652.6765
C21.30892.07072.07071.73011.7301
H31.07292.07071.84972.84103.6670
H41.07292.07071.84973.66702.8410
Cl52.67651.73012.84103.66702.9064
Cl62.67651.73013.66702.84102.9064

picture of Ethene, 1,1-dichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl5 122.863 C1 C2 Cl6 122.863
C2 C1 H3 120.455 C2 C1 H4 120.455
H3 C1 H4 119.091 Cl5 C2 Cl6 114.274
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 C -0.193      
3 H 0.153      
4 H 0.153      
5 Cl -0.017      
6 Cl -0.017      


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 1.849 1.849
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.387 0.000 0.000
y 0.000 -37.468 0.000
z 0.000 0.000 -33.970
Traceless
 xyz
x -3.668 0.000 0.000
y 0.000 -0.790 0.000
z 0.000 0.000 4.458
Polar
3z2-r28.916
x2-y2-1.918
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.776 0.000 0.000
y 0.000 7.073 0.000
z 0.000 0.000 7.752


<r2> (average value of r2) Å2
<r2> 135.057
(<r2>)1/2 11.621