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All results from a given calculation for CFClCClF (trans-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-88.020875
Energy at 298.15K-88.021674
HF Energy-88.020875
Nuclear repulsion energy121.186970
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 HF/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1946 1758 0.00      
2 Ag 1334 1205 0.00      
3 Ag 694 627 0.00      
4 Ag 461 416 0.00      
5 Ag 309 279 0.00      
6 Au 409 369 2.21      
7 Au 148 134 0.23      
8 Bg 623 563 0.00      
9 Bu 1352 1222 390.11      
10 Bu 961 868 210.80      
11 Bu 455 411 5.00      
12 Bu 189 171 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 4440.2 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 4011.2 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 HF/CEP-121G*
ABC
0.14566 0.05002 0.03724

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.065 0.655 0.000
C2 0.065 -0.655 0.000
F3 -1.249 1.230 0.000
F4 1.249 -1.230 0.000
Cl5 1.249 1.759 0.000
Cl6 -1.249 -1.759 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.31701.31662.29781.71582.6894
C21.31702.29781.31662.68941.7158
F31.31662.29783.50602.55352.9892
F42.29781.31663.50602.98922.5535
Cl51.71582.68942.55352.98924.3151
Cl62.68941.71582.98922.55354.3151

picture of trans-1,2-dichloro-1,2-difluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 121.505 C1 C2 Cl6 124.422
C2 C1 F3 121.505 C2 C1 Cl5 124.422
F3 C1 Cl5 114.074 F4 C2 Cl6 114.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.314      
2 C 0.314      
3 F -0.247      
4 F -0.247      
5 Cl -0.067      
6 Cl -0.067      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.371 2.618 0.000
y 2.618 -44.931 0.000
z 0.000 0.000 -44.174
Traceless
 xyz
x -0.819 2.618 0.000
y 2.618 -0.158 0.000
z 0.000 0.000 0.977
Polar
3z2-r21.954
x2-y2-0.440
xy2.618
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.539 1.972 0.000
y 1.972 8.770 0.000
z 0.000 0.000 3.636


<r2> (average value of r2) Å2
<r2> 139.657
(<r2>)1/2 11.818