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: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-92.124833
Energy at 298.15K-92.127672
Nuclear repulsion energy52.717035
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 HF/LANL2DZ
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' 3477 3129 17.75      
2 A' 3461 3114 0.65      
3 A' 3355 3019 1.32      
4 A' 1800 1620 54.48      
5 A' 1542 1388 10.21      
6 A' 1410 1269 25.57      
7 A' 1142 1028 21.86      
8 A' 687 618 54.12      
9 A' 416 375 1.19      
10 A" 1119 1007 66.43      
11 A" 1077 969 55.75      
12 A" 683 615 16.71      

Unscaled Zero Point Vibrational Energy (zpe) 10084.4 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9074.9 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 HF/LANL2DZ
ABC
1.87901 0.19197 0.17417

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.486 0.000
C2 -1.209 -0.050 0.000
Cl3 1.497 -0.517 0.000
H4 0.224 1.529 0.000
H5 -1.375 -1.109 0.000
H6 -2.072 0.589 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6
C11.32261.80181.06762.10552.0745
C21.32262.74612.13301.07161.0738
Cl31.80182.74612.41032.93213.7364
H41.06762.13302.41033.08512.4809
H52.10551.07162.93213.08511.8357
H62.07451.07383.73642.48091.8357

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 122.791 C1 C2 H6 119.551
C2 C1 Cl3 122.279 C2 C1 H4 126.009
Cl3 C1 H4 111.713 H5 C2 H6 117.658
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C -0.329      
3 Cl -0.117      
4 H 0.237      
5 H 0.219      
6 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.229 1.183 0.000 2.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.287 1.236 0.000
y 1.236 -22.717 0.000
z 0.000 0.000 -26.928
Traceless
 xyz
x -0.465 1.236 0.000
y 1.236 3.390 0.000
z 0.000 0.000 -2.926
Polar
3z2-r2-5.852
x2-y2-2.570
xy1.236
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.752 -0.305 0.000
y -0.305 3.502 0.000
z 0.000 0.000 1.386


<r2> (average value of r2) Å2
<r2> 53.511
(<r2>)1/2 7.315