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/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-997.815587
Energy at 298.15K-997.817531
Nuclear repulsion energy187.564232
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/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 3095 3086 1.14      
2 A1 1598 1593 82.17      
3 A1 1369 1365 0.49      
4 A1 564 562 15.68      
5 A1 285 284 0.00      
6 A2 668 666 0.00      
7 B1 854 851 44.48      
8 B1 457 455 4.55      
9 B2 3185 3175 0.02      
10 B2 1059 1056 81.53      
11 B2 708 706 120.83      
12 B2 367 366 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 7104.3 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 7083.0 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 BLYP/cc-pVTZ
ABC
0.24375 0.10969 0.07565

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.763
C2 0.000 0.000 0.432
H3 0.000 0.935 2.314
H4 0.000 -0.935 2.314
Cl5 0.000 1.474 -0.523
Cl6 0.000 -1.474 -0.523

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.33161.08521.08522.72032.7203
C21.33162.10172.10171.75611.7561
H31.08522.10171.87032.88783.7219
H41.08522.10171.87033.72192.8878
Cl52.72031.75612.88783.72192.9477
Cl62.72031.75613.72192.88782.9477

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 122.940 C1 C2 Cl6 122.940
C2 C1 H3 120.490 C2 C1 H4 120.490
H3 C1 H4 119.019 Cl5 C2 Cl6 114.121
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 C 0.061      
3 H 0.131      
4 H 0.131      
5 Cl -0.056      
6 Cl -0.056      


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 1.274 1.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.559 0.000 0.000
y 0.000 -36.460 0.000
z 0.000 0.000 -34.206
Traceless
 xyz
x -3.226 0.000 0.000
y 0.000 -0.078 0.000
z 0.000 0.000 3.304
Polar
3z2-r26.608
x2-y2-2.099
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> 138.132
(<r2>)1/2 11.753