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-, (E)-)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-997.791104
Energy at 298.15K-997.792934
Nuclear repulsion energy174.997700
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 B3LYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3237 3123 0.00      
2 Ag 1653 1595 0.00      
3 Ag 1300 1254 0.00      
4 Ag 845 816 0.00      
5 Ag 351 339 0.00      
6 Au 939 906 46.77      
7 Au 214 206 0.61      
8 Bg 795 767 0.00      
9 Bu 3233 3120 15.46      
10 Bu 1213 1171 19.94      
11 Bu 817 789 130.43      
12 Bu 235 227 3.75      

Unscaled Zero Point Vibrational Energy (zpe) 7415.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 7156.0 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 B3LYP/6-31G(2df,p)
ABC
1.77163 0.05083 0.04941

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 0.000
C2 0.000 -0.663 0.000
H3 0.895 1.271 0.000
H4 -0.895 -1.271 0.000
Cl5 -1.480 1.571 0.000
Cl6 1.480 -1.571 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 H4 Cl5 Cl6
C11.32611.08152.13061.73632.6796
C21.32612.13061.08152.67961.7363
H31.08152.13063.10802.39372.9010
H42.13061.08153.10802.90102.3937
Cl51.73632.67962.39372.90104.3164
Cl62.67961.73632.90102.39374.3164

picture of Ethene, 1,2-dichloro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 124.182 C1 C2 Cl6 121.516
C2 C1 H3 124.182 C2 C1 Cl5 121.516
H3 C1 Cl5 114.302 H4 C2 Cl6 114.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.051      
2 C -0.051      
3 H 0.164      
4 H 0.164      
5 Cl -0.112      
6 Cl -0.112      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.667 2.803 0.000
y 2.803 -36.754 0.000
z 0.000 0.000 -37.906
Traceless
 xyz
x 0.664 2.803 0.000
y 2.803 0.532 0.000
z 0.000 0.000 -1.196
Polar
3z2-r2-2.392
x2-y20.088
xy2.803
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.807 -2.821 0.000
y -2.821 8.829 0.000
z 0.000 0.000 3.803


<r2> (average value of r2) Å2
<r2> 191.651
(<r2>)1/2 13.844