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-pVDZ

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-pVDZ
 hartrees
Energy at 0K-997.873747
Energy at 298.15K-997.875849
Nuclear repulsion energy185.028879
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-pVDZ
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 3126 0.83      
2 A1 1689 1623 38.19      
3 A1 1188 1142 0.04      
4 A1 739 710 22.82      
5 A1 167 161 0.25      
6 A2 890 855 0.00      
7 A2 421 404 0.00      
8 B1 707 680 54.82      
9 B2 3230 3104 14.49      
10 B2 1292 1242 25.01      
11 B2 869 835 84.78      
12 B2 580 558 4.99      

Unscaled Zero Point Vibrational Energy (zpe) 7511.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 7219.9 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 B1B95/cc-pVDZ
ABC
0.38730 0.08334 0.06858

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.666 0.962
C2 0.000 -0.666 0.962
H3 0.000 1.220 1.900
H4 0.000 -1.220 1.900
Cl5 0.000 1.642 -0.451
Cl6 0.000 -1.642 -0.451

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.33141.08912.10591.71832.7066
C21.33142.10591.08912.70661.7183
H31.08912.10592.44002.38883.7042
H42.10591.08912.44003.70422.3888
Cl51.71832.70662.38883.70423.2847
Cl62.70661.71833.70422.38883.2847

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 120.595 C1 C2 Cl6 124.639
C2 C1 H3 120.595 C2 C1 Cl5 124.639
H3 C1 Cl5 114.766 H4 C2 Cl6 114.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.041      
2 C -0.041      
3 H 0.073      
4 H 0.073      
5 Cl -0.032      
6 Cl -0.032      


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 1.848 1.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.019 0.000 0.000
y 0.000 -36.707 0.000
z 0.000 0.000 -32.153
Traceless
 xyz
x -3.589 0.000 0.000
y 0.000 -1.622 0.000
z 0.000 0.000 5.210
Polar
3z2-r210.421
x2-y2-1.311
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.799 0.000 0.000
y 0.000 8.442 0.000
z 0.000 0.000 6.356


<r2> (average value of r2) Å2
<r2> 147.516
(<r2>)1/2 12.146