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 C2H3Cl (Ethene, chloro-)

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-538.190157
Energy at 298.15K-538.192894
Nuclear repulsion energy88.271282
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**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3268 3140 3.34      
2 A' 3229 3102 5.23      
3 A' 3172 3048 0.02      
4 A' 1687 1621 51.31      
5 A' 1414 1359 8.28      
6 A' 1312 1261 12.99      
7 A' 1044 1003 18.36      
8 A' 708 680 43.92      
9 A' 399 384 0.36      
10 A" 979 940 37.09      
11 A" 919 883 27.08      
12 A" 635 611 9.79      

Unscaled Zero Point Vibrational Energy (zpe) 9383.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 9015.9 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 B3LYP/6-31G**
ABC
1.91721 0.19693 0.17858

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.765 0.000
C2 1.296 1.051 0.000
Cl3 -0.627 -0.870 0.000
H4 -0.788 1.510 0.000
H5 2.062 0.284 0.000
H6 1.611 2.090 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6
C11.32691.75131.08392.11722.0853
C21.32692.71802.13351.08431.0853
Cl31.75132.71802.38482.92593.7104
H41.08392.13352.38483.10212.4679
H52.11721.08432.92593.10211.8613
H62.08531.08533.71042.46791.8613

picture of Ethene, chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 122.510 C1 C2 H6 119.318
C2 C1 Cl3 123.422 C2 C1 H4 124.196
Cl3 C1 H4 112.382 H5 C2 H6 118.172
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C -0.198      
3 Cl -0.029      
4 H 0.149      
5 H 0.129      
6 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.669 1.464 0.000 1.609
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.166 -0.104 0.000
y -0.104 -22.795 0.000
z 0.000 0.000 -26.611
Traceless
 xyz
x 1.537 -0.104 0.000
y -0.104 2.093 0.000
z 0.000 0.000 -3.630
Polar
3z2-r2-7.260
x2-y2-0.371
xy-0.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.683 1.465 0.000
y 1.465 5.492 -0.001
z 0.000 -0.001 2.049


<r2> (average value of r2) Å2
<r2> 69.066
(<r2>)1/2 8.311