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 C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-637.112846
Energy at 298.15K-637.115161
HF Energy-637.112846
Nuclear repulsion energy150.033964
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 HSEh1PBE/6-31G(2df,p)
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' 3324 3184 0.52      
2 A' 3214 3078 5.16      
3 A' 1753 1679 153.59      
4 A' 1405 1345 5.78      
5 A' 1228 1176 187.19      
6 A' 974 933 25.50      
7 A' 707 677 46.38      
8 A' 438 419 1.16      
9 A' 373 357 0.13      
10 A" 858 821 57.76      
11 A" 732 701 0.15      
12 A" 553 530 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 7778.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 7449.8 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 HSEh1PBE/6-31G(2df,p)
ABC
0.35854 0.17117 0.11586

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.457 0.000
C2 -1.025 1.290 0.000
F3 1.255 0.847 0.000
Cl4 -0.134 -1.257 0.000
H5 -0.842 2.357 0.000
H6 -2.037 0.916 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.32031.31431.71962.07782.0884
C21.32032.32252.69851.08241.0795
F31.31432.32252.52102.58423.2932
Cl41.71962.69852.52103.68282.8893
H52.07781.08242.58423.68281.8720
H62.08841.07953.29322.88931.8720

picture of 1-chloro-1-fluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.387 C1 C2 H6 120.636
C2 C1 F3 123.651 C2 C1 Cl4 124.651
F3 C1 Cl4 111.697 H5 C2 H6 119.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.303      
2 C -0.459      
3 F -0.080      
4 Cl -0.108      
5 H 0.168      
6 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.903 0.775 0.000 1.190
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.273 -1.051 0.000
y -1.051 -26.875 0.000
z 0.000 0.000 -29.868
Traceless
 xyz
x 0.098 -1.051 0.000
y -1.051 2.196 0.000
z 0.000 0.000 -2.294
Polar
3z2-r2-4.589
x2-y2-1.399
xy-1.051
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.103 -0.865 0.000
y -0.865 6.836 0.000
z 0.000 0.000 2.953


<r2> (average value of r2) Å2
<r2> 94.295
(<r2>)1/2 9.711