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: PBEPBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-637.074115
Energy at 298.15K-637.076301
HF Energy-637.074115
Nuclear repulsion energy147.711546
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 PBEPBE/aug-cc-pVDZ
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' 3239 3219 0.36      
2 A' 3126 3106 4.68      
3 A' 1664 1654 158.99      
4 A' 1337 1329 0.78      
5 A' 1130 1123 187.39      
6 A' 909 903 45.51      
7 A' 674 670 45.38      
8 A' 415 412 0.91      
9 A' 360 357 0.02      
10 A" 814 809 57.58      
11 A" 685 680 0.05      
12 A" 510 507 2.36      

Unscaled Zero Point Vibrational Energy (zpe) 7430.7 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 7385.4 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 PBEPBE/aug-cc-pVDZ
ABC
0.34738 0.16608 0.11236

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.457 0.000
C2 -1.003 1.341 0.000
F3 1.300 0.825 0.000
Cl4 -0.168 -1.272 0.000
H5 -0.778 2.413 0.000
H6 -2.040 0.997 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.33671.35101.73672.10512.1105
C21.33672.35932.74251.09521.0926
F31.35102.35932.56012.61483.3441
Cl41.73672.74252.56013.73462.9415
H52.10511.09522.61483.73461.8959
H62.11051.09263.34412.94151.8959

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 119.581 C1 C2 H6 120.291
C2 C1 F3 122.759 C2 C1 Cl4 125.836
F3 C1 Cl4 111.405 H5 C2 H6 120.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.413      
2 C 0.813      
3 F -0.407      
4 Cl -0.089      
5 H -0.378      
6 H -0.352      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.112 0.668 0.000 1.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.388 -1.260 0.000
y -1.260 -27.339 0.000
z 0.000 0.000 -30.928
Traceless
 xyz
x -0.254 -1.260 0.000
y -1.260 2.819 0.000
z 0.000 0.000 -2.565
Polar
3z2-r2-5.130
x2-y2-2.049
xy-1.260
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.332 -0.843 0.000
y -0.843 8.177 0.000
z 0.000 0.000 4.534


<r2> (average value of r2) Å2
<r2> 97.216
(<r2>)1/2 9.860