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: 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-637.413908
Energy at 298.15K-637.415970
HF Energy-637.413908
Nuclear repulsion energy139.553695
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' 3250 3123 8.82      
2 A' 3230 3104 5.84      
3 A' 1725 1657 23.34      
4 A' 1334 1282 0.09      
5 A' 1244 1195 2.66      
6 A' 1171 1125 166.20      
7 A' 872 838 57.93      
8 A' 448 431 1.69      
9 A' 272 261 5.83      
10 A" 933 896 48.03      
11 A" 798 767 14.97      
12 A" 274 263 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 7775.8 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 7471.0 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
1.81475 0.08115 0.07768

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 0.477 0.000
C2 1.032 -0.359 0.000
Cl3 -1.641 -0.107 0.000
F4 2.291 0.111 0.000
H5 0.110 1.553 0.000
H6 0.969 -1.441 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32801.74152.32001.08232.1490
C21.32802.68491.34322.12271.0845
Cl31.74152.68493.93772.41322.9312
F42.32001.34323.93772.61462.0385
H51.08232.12272.41322.61463.1153
H62.14901.08452.93122.03853.1153

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 120.570 C1 C2 H6 125.640
C2 C1 Cl3 121.432 C2 C1 H5 123.124
Cl3 C1 H5 115.444 F4 C2 H6 113.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 C 0.247      
3 Cl -0.010      
4 F -0.263      
5 H 0.159      
6 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.336 -0.130 0.000 0.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.206 -0.924 0.000
y -0.924 -26.109 0.000
z 0.000 0.000 -29.992
Traceless
 xyz
x -4.156 -0.924 0.000
y -0.924 4.990 0.000
z 0.000 0.000 -0.834
Polar
3z2-r2-1.668
x2-y2-6.097
xy-0.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.045 -0.303 0.000
y -0.303 4.165 0.000
z 0.000 0.000 2.214


<r2> (average value of r2) Å2
<r2> 125.661
(<r2>)1/2 11.210