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: TPSSh/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 TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-637.435922
Energy at 298.15K-637.438186
HF Energy-637.435922
Nuclear repulsion energy149.208362
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 TPSSh/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' 3299 3183 0.11      
2 A' 3192 3080 2.64      
3 A' 1720 1659 142.74      
4 A' 1415 1365 3.60      
5 A' 1201 1159 181.44      
6 A' 966 932 31.34      
7 A' 686 662 49.83      
8 A' 425 410 0.97      
9 A' 362 349 0.17      
10 A" 846 816 55.73      
11 A" 726 701 0.23      
12 A" 539 520 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 7687.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 7418.7 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 TPSSh/6-31G(2df,p)
ABC
0.35465 0.16921 0.11455

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.460 0.000
C2 -1.023 1.302 0.000
F3 1.267 0.846 0.000
Cl4 -0.140 -1.264 0.000
H5 -0.837 2.368 0.000
H6 -2.038 0.935 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.32511.32421.73012.08372.0927
C21.32512.33532.71381.08241.0795
F31.32422.33532.53602.59733.3064
Cl41.73012.71382.53603.69872.9044
H52.08371.08242.59733.69871.8705
H62.09271.07953.30642.90441.8705

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 119.540 C1 C2 H6 120.646
C2 C1 F3 123.643 C2 C1 Cl4 124.787
F3 C1 Cl4 111.570 H5 C2 H6 119.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.312      
2 C -0.454      
3 F -0.087      
4 Cl -0.113      
5 H 0.167      
6 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.905 0.827 0.000 1.226
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.164 -0.849 0.000
y -0.849 6.962 0.000
z 0.000 0.000 2.963


<r2> (average value of r2) Å2
<r2> 95.126
(<r2>)1/2 9.753