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 CHFCHCl ((E)-1-chloro-2-fluoroethene)

using model chemistry: wB97X-D/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/CEP-121G*
 hartrees
Energy at 0K-51.588694
Energy at 298.15K-51.590746
HF Energy-51.588694
Nuclear repulsion energy 
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 wB97X-D/CEP-121G*
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' 3242 3242 5.11      
2 A' 3234 3234 12.31      
3 A' 1707 1707 25.98      
4 A' 1323 1323 0.43      
5 A' 1254 1254 3.46      
6 A' 1158 1158 201.32      
7 A' 887 887 65.71      
8 A' 449 449 1.84      
9 A' 271 271 6.69      
10 A" 915 915 72.51      
11 A" 788 788 13.83      
12 A" 269 269 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 7748.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7748.5 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 wB97X-D/CEP-121G*
ABC
1.79253 0.08093 0.07743

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.482 0.000
C2 1.031 -0.361 0.000
Cl3 -1.643 -0.107 0.000
F4 2.295 0.108 0.000
H5 0.114 1.561 0.000
H6 0.970 -1.445 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33171.74522.32571.08452.1583
C21.33172.68541.34892.12911.0862
Cl31.74522.68543.94402.42252.9360
F42.32571.34893.94402.62062.0418
H51.08452.12912.42252.62063.1258
H62.15831.08622.93602.04183.1258

picture of (E)-1-chloro-2-fluoroethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 120.361 C1 C2 H6 126.113
C2 C1 Cl3 120.974 C2 C1 H5 123.243
Cl3 C1 H5 115.783 F4 C2 H6 113.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.221      
2 C 0.092      
3 Cl -0.089      
4 F -0.227      
5 H 0.245      
6 H 0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.086 -0.199 0.000 0.216
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.271 -1.085 0.000
y -1.085 -25.229 0.000
z 0.000 0.000 -29.817
Traceless
 xyz
x -4.747 -1.085 0.000
y -1.085 5.814 0.000
z 0.000 0.000 -1.067
Polar
3z2-r2-2.134
x2-y2-7.041
xy-1.085
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.389 -0.358 0.000
y -0.358 4.564 0.000
z 0.000 0.000 2.898


<r2> (average value of r2) Å2
<r2> 85.293
(<r2>)1/2 9.235