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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-87.869191
Energy at 298.15K-87.869868
HF Energy-87.869191
Nuclear repulsion energy118.498185
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 1927 1758 0.00      
2 Ag 1248 1139 0.00      
3 Ag 649 592 0.00      
4 Ag 437 399 0.00      
5 Ag 293 267 0.00      
6 Au 387 353 5.96      
7 Au 144 132 0.46      
8 Bg 619 564 0.00      
9 Bu 1259 1149 299.24      
10 Bu 912 832 153.27      
11 Bu 426 389 9.20      
12 Bu 181 165 3.91      

Unscaled Zero Point Vibrational Energy (zpe) 4240.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 3869.6 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
0.13951 0.04786 0.03563

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 -0.057 0.658 0.000
C2 0.057 -0.658 0.000
F3 -1.281 1.250 0.000
F4 1.281 -1.250 0.000
Cl5 1.281 1.798 0.000
Cl6 -1.281 -1.798 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.32111.35962.33041.75802.7443
C21.32112.33041.35962.74431.7580
F31.35962.33043.57962.62043.0478
F42.33041.35963.57963.04782.6204
Cl51.75802.74432.62043.04784.4156
Cl62.74431.75803.04782.62044.4156

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 120.755 C1 C2 Cl6 125.465
C2 C1 F3 120.755 C2 C1 Cl5 125.465
F3 C1 Cl5 113.780 F4 C2 Cl6 113.780
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 0.110      
2 C 0.110      
3 F -0.232      
4 F -0.232      
5 Cl 0.122      
6 Cl 0.122      


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 -48.347 3.152 0.000
y 3.152 -47.361 0.000
z 0.000 0.000 -44.639
Traceless
 xyz
x -2.347 3.152 0.000
y 3.152 -0.868 0.000
z 0.000 0.000 3.215
Polar
3z2-r26.429
x2-y2-0.986
xy3.152
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.461 2.310 0.000
y 2.310 8.432 0.000
z 0.000 0.000 2.569


<r2> (average value of r2) Å2
<r2> 145.799
(<r2>)1/2 12.075