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 CHFCHClz ((Z)-1-Chloro-2-fluoroethene)

using model chemistry: B3LYP/CEP-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/CEP-31G*
 hartrees
Energy at 0K-51.574491
Energy at 298.15K-51.576642
HF Energy-51.574491
Nuclear repulsion energy57.216016
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/CEP-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' 3244 3132 13.66      
2 A' 3203 3093 5.65      
3 A' 1725 1666 67.16      
4 A' 1323 1278 28.36      
5 A' 1238 1195 44.45      
6 A' 1067 1030 99.58      
7 A' 799 772 23.22      
8 A' 638 616 22.05      
9 A' 190 184 1.27      
10 A" 829 800 0.00      
11 A" 732 707 72.45      
12 A" 433 418 10.05      

Unscaled Zero Point Vibrational Energy (zpe) 7709.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 7445.3 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/CEP-31G*
ABC
0.53363 0.11955 0.09767

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.888 0.000
C2 1.276 0.419 0.000
Cl3 -1.400 -0.165 0.000
F4 1.577 -0.897 0.000
H5 -0.211 1.958 0.000
H6 2.156 1.070 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.35921.75162.38211.09072.1640
C21.35922.73821.35002.13991.0954
Cl31.75162.73823.06542.43353.7643
F42.38211.35003.06543.36882.0507
H51.09072.13992.43353.36882.5281
H62.16401.09543.76432.05072.5281

picture of (Z)-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 123.101 C1 C2 H6 123.315
C2 C1 Cl3 122.844 C2 C1 H5 121.335
Cl3 C1 H5 115.821 F4 C2 H6 113.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 C -0.051      
3 Cl -0.101      
4 F -0.129      
5 H 0.274      
6 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.016 2.216 0.000 2.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.292 2.802 0.000
y 2.802 -26.112 0.000
z 0.000 0.000 -29.952
Traceless
 xyz
x 0.740 2.802 0.000
y 2.802 2.510 0.000
z 0.000 0.000 -3.250
Polar
3z2-r2-6.500
x2-y2-1.180
xy2.802
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.195 0.363 0.000
y 0.363 4.319 0.000
z 0.000 0.000 2.356


<r2> (average value of r2) Å2
<r2> 74.342
(<r2>)1/2 8.622