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: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-637.015997
Energy at 298.15K-637.018159
HF Energy-637.015997
Nuclear repulsion energy144.100213
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 PBEPBE/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' 3188 3143 9.10      
2 A' 3142 3097 4.30      
3 A' 1687 1662 57.48      
4 A' 1332 1312 24.25      
5 A' 1239 1222 31.24      
6 A' 1072 1057 74.30      
7 A' 798 786 18.69      
8 A' 647 638 20.83      
9 A' 190 187 0.95      
10 A" 829 817 0.01      
11 A" 724 714 43.03      
12 A" 442 436 7.60      

Unscaled Zero Point Vibrational Energy (zpe) 7644.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 7535.1 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 PBEPBE/6-31G*
ABC
0.54514 0.12118 0.09914

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.874 0.000
C2 1.259 0.416 0.000
Cl3 -1.390 -0.163 0.000
F4 1.572 -0.889 0.000
H5 -0.209 1.945 0.000
H6 2.130 1.080 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33941.73362.36201.09102.1395
C21.33942.71081.34212.11921.0948
Cl31.73362.71083.04952.41553.7320
F42.36201.34213.04953.34692.0458
H51.09102.11922.41553.34692.4936
H62.13951.09483.73202.04582.4936

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 123.496 C1 C2 H6 122.710
C2 C1 Cl3 123.287 C2 C1 H5 121.038
Cl3 C1 H5 115.676 F4 C2 H6 113.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.343      
2 C 0.166      
3 Cl 0.019      
4 F -0.209      
5 H 0.205      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.080 1.755 0.000 2.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.698 1.988 0.000
y 1.988 -26.709 0.000
z 0.000 0.000 -30.108
Traceless
 xyz
x 0.711 1.988 0.000
y 1.988 2.194 0.000
z 0.000 0.000 -2.905
Polar
3z2-r2-5.810
x2-y2-0.988
xy1.988
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.002 0.412 0.000
y 0.412 4.461 0.000
z 0.000 0.000 2.229


<r2> (average value of r2) Å2
<r2> 104.880
(<r2>)1/2 10.241