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: B2PLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-637.248063
Energy at 298.15K-637.250158
HF Energy-637.001767
Nuclear repulsion energy140.458906
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 B2PLYP/6-311+G(3df,2p)
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 3244 1.23      
2 A' 3239 3239 13.68      
3 A' 1697 1697 26.93      
4 A' 1333 1333 0.69      
5 A' 1250 1250 2.67      
6 A' 1144 1144 190.26      
7 A' 890 890 54.45      
8 A' 454 454 1.58      
9 A' 274 274 5.78      
10 A" 930 930 57.16      
11 A" 827 827 7.67      
12 A" 274 274 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 7778.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7778.2 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 B2PLYP/6-311+G(3df,2p)
ABC
1.82563 0.08234 0.07879

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.475 0.000
C2 1.017 -0.370 0.000
Cl3 -1.628 -0.087 0.000
F4 2.278 0.084 0.000
H5 0.129 1.546 0.000
H6 0.946 -1.447 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32301.72302.31181.07792.1426
C21.32302.66091.34042.11191.0788
Cl31.72302.66093.91062.39902.9116
F42.31181.34043.91062.59932.0292
H51.07792.11192.39902.59933.1021
H62.14261.07882.91162.02923.1021

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 120.446 C1 C2 H6 125.969
C2 C1 Cl3 121.191 C2 C1 H5 122.870
Cl3 C1 H5 115.940 F4 C2 H6 113.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.337      
2 C 0.545      
3 Cl -0.169      
4 F -0.373      
5 H 0.162      
6 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.024 -0.157 0.000 0.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.468 -1.010 0.000
y -1.010 -26.650 0.000
z 0.000 0.000 -30.849
Traceless
 xyz
x -4.719 -1.010 0.000
y -1.010 5.509 0.000
z 0.000 0.000 -0.790
Polar
3z2-r2-1.579
x2-y2-6.818
xy-1.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.193 -0.344 0.000
y -0.344 5.379 0.000
z 0.000 0.000 4.310


<r2> (average value of r2) Å2
<r2> 124.715
(<r2>)1/2 11.168