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: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-997.707225
Energy at 298.15K-997.709145
Nuclear repulsion energy186.652173
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 BLYP/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 A1 3112 3088 1.53      
2 A1 1615 1602 70.30      
3 A1 1373 1362 0.96      
4 A1 566 562 17.30      
5 A1 289 287 0.04      
6 A2 667 662 0.00      
7 B1 836 829 44.13      
8 B1 449 446 2.62      
9 B2 3207 3182 0.11      
10 B2 1056 1047 98.29      
11 B2 718 713 123.42      
12 B2 368 365 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 7126.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 7071.9 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 BLYP/6-31G**
ABC
0.24182 0.10849 0.07489

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.771
C2 0.000 0.000 0.431
H3 0.000 0.939 2.324
H4 0.000 -0.939 2.324
Cl5 0.000 1.482 -0.525
Cl6 0.000 -1.482 -0.525

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.33951.08981.08982.73282.7328
C21.33952.11282.11281.76391.7639
H31.08982.11281.87812.90043.7388
H41.08982.11281.87813.73882.9004
Cl52.73281.76392.90043.73882.9640
Cl62.73281.76393.73882.90042.9640

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 122.839 C1 C2 Cl6 122.839
C2 C1 H3 120.498 C2 C1 H4 120.498
H3 C1 H4 119.004 Cl5 C2 Cl6 114.322
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.164      
2 C -0.153      
3 H 0.125      
4 H 0.125      
5 Cl 0.033      
6 Cl 0.033      


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 1.440 1.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.122 0.000 0.000
y 0.000 -36.175 0.000
z 0.000 0.000 -33.517
Traceless
 xyz
x -3.276 0.000 0.000
y 0.000 -0.356 0.000
z 0.000 0.000 3.632
Polar
3z2-r27.263
x2-y2-1.947
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 138.996
(<r2>)1/2 11.790