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All results from a given calculation for C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: PBEPBE/3-21G

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/3-21G
 hartrees
Energy at 0K-633.844577
Energy at 298.15K-633.846717
HF Energy-633.844577
Nuclear repulsion energy144.372813
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/3-21G
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' 3245 3216 1.05      
2 A' 3141 3113 7.20      
3 A' 1704 1688 127.65      
4 A' 1432 1419 3.97      
5 A' 1178 1167 182.66      
6 A' 960 952 20.04      
7 A' 593 588 63.63      
8 A' 395 391 0.25      
9 A' 341 337 0.75      
10 A" 877 869 95.93      
11 A" 701 695 0.21      
12 A" 514 509 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 7540.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 7471.8 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 PBEPBE/3-21G
ABC
0.33578 0.15647 0.10673

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.517 0.000
C2 -1.091 1.273 0.000
F3 1.286 0.945 0.000
Cl4 -0.115 -1.319 0.000
H5 -1.000 2.360 0.000
H6 -2.079 0.819 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.32711.35511.84042.09682.1003
C21.32712.39912.77031.09091.0872
F31.35512.39912.66272.68833.3667
Cl41.84042.77032.66273.78472.9033
H52.09681.09092.68833.78471.8813
H62.10031.08723.36672.90331.8813

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 119.943 C1 C2 H6 120.578
C2 C1 F3 126.871 C2 C1 Cl4 121.146
F3 C1 Cl4 111.983 H5 C2 H6 119.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058      
2 C -0.431      
3 F -0.198      
4 Cl 0.081      
5 H 0.245      
6 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.045 1.443 0.000 1.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.270 -1.304 0.000
y -1.304 -27.812 0.000
z 0.000 0.000 -30.764
Traceless
 xyz
x 1.018 -1.304 0.000
y -1.304 1.705 0.000
z 0.000 0.000 -2.723
Polar
3z2-r2-5.446
x2-y2-0.458
xy-1.304
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.360 -0.760 0.000
y -0.760 6.418 0.000
z 0.000 0.000 1.416


<r2> (average value of r2) Å2
<r2> 100.853
(<r2>)1/2 10.043