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: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-637.094031
Energy at 298.15K-637.096197
HF Energy-637.094031
Nuclear repulsion energy144.095989
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 PBEPBEultrafine/6-311G*
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' 3165 3132 10.50      
2 A' 3125 3093 3.98      
3 A' 1669 1651 60.64      
4 A' 1316 1303 23.28      
5 A' 1227 1214 31.45      
6 A' 1053 1042 97.78      
7 A' 790 782 19.15      
8 A' 644 637 23.40      
9 A' 189 187 1.11      
10 A" 826 818        
11 A" 717 710 53.91      
12 A" 445 441 10.45      

Unscaled Zero Point Vibrational Energy (zpe) 7583.8 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 7504.9 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 PBEPBEultrafine/6-311G*
ABC
0.54895 0.12062 0.09889

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.869 0.000
C2 1.256 0.418 0.000
Cl3 -1.392 -0.164 0.000
F4 1.580 -0.884 0.000
H5 -0.213 1.937 0.000
H6 2.124 1.082 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33481.73382.36041.08902.1350
C21.33482.71211.34232.11311.0928
Cl31.73382.71213.05882.40943.7312
F42.36041.34233.05883.34302.0405
H51.08902.11312.40943.34302.4887
H62.13501.09283.73122.04052.4887

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 123.697 C1 C2 H6 122.852
C2 C1 Cl3 123.696 C2 C1 H5 121.015
Cl3 C1 H5 115.288 F4 C2 H6 113.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.393      
2 C 0.083      
3 Cl -0.010      
4 F -0.160      
5 H 0.265      
6 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.031 1.874 0.000 2.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.333 2.268 0.000
y 2.268 -27.379 0.000
z 0.000 0.000 -30.914
Traceless
 xyz
x 0.814 2.268 0.000
y 2.268 2.244 0.000
z 0.000 0.000 -3.058
Polar
3z2-r2-6.116
x2-y2-0.954
xy2.268
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.268 0.558 0.000
y 0.558 4.570 0.000
z 0.000 0.000 2.396


<r2> (average value of r2) Å2
<r2> 105.503
(<r2>)1/2 10.271