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: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-634.297511
Energy at 298.15K-634.299692
HF Energy-634.297511
Nuclear repulsion energy142.959486
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 BLYP/3-21G*
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' 3187 3166 8.74      
2 A' 3128 3108 4.19      
3 A' 1658 1647 37.24      
4 A' 1365 1357 12.99      
5 A' 1255 1247 10.66      
6 A' 1045 1039 57.25      
7 A' 767 762 12.06      
8 A' 625 621 26.68      
9 A' 187 186 1.14      
10 A" 903 897 0.05      
11 A" 745 740 53.58      
12 A" 451 448 8.24      

Unscaled Zero Point Vibrational Energy (zpe) 7657.6 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 7607.8 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 BLYP/3-21G*
ABC
0.51568 0.12187 0.09858

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.905 0.000
C2 1.253 0.442 0.000
Cl3 -1.385 -0.181 0.000
F4 1.572 -0.898 0.000
H5 -0.228 1.967 0.000
H6 2.115 1.110 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.33571.76042.39221.08612.1249
C21.33572.71091.37742.12581.0909
Cl31.76042.71093.04332.43983.7310
F42.39221.37743.04333.38362.0805
H51.08612.12582.43983.38362.4946
H62.12491.09093.73102.08052.4946

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 123.690 C1 C2 H6 121.915
C2 C1 Cl3 121.622 C2 C1 H5 122.412
Cl3 C1 H5 115.966 F4 C2 H6 114.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.362      
2 C 0.122      
3 Cl 0.025      
4 F -0.216      
5 H 0.229      
6 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.092 1.890 0.000 2.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.077 2.159 0.000
y 2.159 -26.911 0.000
z 0.000 0.000 -30.412
Traceless
 xyz
x 0.585 2.159 0.000
y 2.159 2.333 0.000
z 0.000 0.000 -2.918
Polar
3z2-r2-5.836
x2-y2-1.165
xy2.159
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.635 0.440 0.000
y 0.440 4.251 0.000
z 0.000 0.000 1.712


<r2> (average value of r2) Å2
<r2> 105.601
(<r2>)1/2 10.276