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: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-538.101767
Energy at 298.15K-538.104510
Nuclear repulsion energy88.592824
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 B3PW91/6-31G*
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' 3284 3142 3.02      
2 A' 3242 3101 5.27      
3 A' 3190 3051 0.08      
4 A' 1697 1624 53.02      
5 A' 1421 1359 8.09      
6 A' 1322 1265 10.83      
7 A' 1052 1006 21.01      
8 A' 729 697 41.42      
9 A' 401 384 0.27      
10 A" 982 939 40.48      
11 A" 916 877 34.25      
12 A" 639 611 11.58      

Unscaled Zero Point Vibrational Energy (zpe) 9436.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9027.8 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 B3PW91/6-31G*
ABC
1.92488 0.19864 0.18005

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 0.000
C2 1.296 1.042 0.000
Cl3 -0.628 -0.863 0.000
H4 -0.784 1.509 0.000
H5 2.062 0.273 0.000
H6 1.614 2.081 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6
C11.32721.73821.08502.11822.0867
C21.32722.70772.13191.08531.0861
Cl31.73822.70772.37642.91953.7000
H41.08502.13192.37643.10242.4651
H52.11821.08532.91953.10241.8628
H62.08671.08613.70002.46511.8628

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 122.491 C1 C2 H6 119.353
C2 C1 Cl3 123.528 C2 C1 H4 123.894
Cl3 C1 H4 112.578 H5 C2 H6 118.155
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252     -0.116
2 C -0.339     -0.356
3 Cl -0.011     -0.085
4 H 0.217     0.185
5 H 0.196     0.197
6 H 0.188     0.176


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.666 1.442 0.000 1.588
CHELPG        
AIM        
ESP 0.654 1.501 0.000 1.637


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.962 -0.093 0.000
y -0.093 -22.586 0.000
z 0.000 0.000 -26.653
Traceless
 xyz
x 1.658 -0.093 0.000
y -0.093 2.221 0.000
z 0.000 0.000 -3.879
Polar
3z2-r2-7.758
x2-y2-0.376
xy-0.093
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> 68.586
(<r2>)1/2 8.282