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: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-637.490629
Energy at 298.15K-637.492727
HF Energy-637.490629
Nuclear repulsion energy140.606197
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 B1B95/TZVP
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' 3261 3120 7.76      
2 A' 3248 3108 6.59      
3 A' 1736 1662 25.50      
4 A' 1333 1276 0.30      
5 A' 1249 1195 0.58      
6 A' 1167 1116 203.25      
7 A' 893 855 59.47      
8 A' 456 436 1.68      
9 A' 272 260 6.40      
10 A" 937 897 62.45      
11 A" 821 786 11.33      
12 A" 276 264 1.35      

Unscaled Zero Point Vibrational Energy (zpe) 7823.7 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 7486.5 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 B1B95/TZVP
ABC
1.83660 0.08245 0.07891

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.474 0.000
C2 1.022 -0.357 0.000
Cl3 -1.628 -0.104 0.000
F4 2.274 0.106 0.000
H5 0.113 1.546 0.000
H6 0.960 -1.435 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.31701.72712.30351.07782.1366
C21.31702.66121.33522.10871.0795
Cl31.72712.66123.90712.39842.9094
F42.30351.33523.90712.59662.0252
H51.07782.10872.39842.59663.0987
H62.13661.07952.90942.02523.0987

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 120.575 C1 C2 H6 125.846
C2 C1 Cl3 121.313 C2 C1 H5 123.105
Cl3 C1 H5 115.582 F4 C2 H6 113.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 C 0.085      
3 Cl -0.068      
4 F -0.185      
5 H 0.192      
6 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.019 -0.186 0.000 0.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.213 -1.035 0.000
y -1.035 -26.174 0.000
z 0.000 0.000 -30.397
Traceless
 xyz
x -4.928 -1.035 0.000
y -1.035 5.631 0.000
z 0.000 0.000 -0.703
Polar
3z2-r2-1.406
x2-y2-7.039
xy-1.035
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.310 -0.329 0.000
y -0.329 4.482 0.000
z 0.000 0.000 3.080


<r2> (average value of r2) Å2
<r2> 124.303
(<r2>)1/2 11.149