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

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 C2H 1AG
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-1189.629871
Energy at 298.15K-1189.630166
HF Energy-1189.629871
Nuclear repulsion energy340.092942
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 Ag 1768 1752 0.00      
2 Ag 1134 1123 0.00      
3 Ag 599 593 0.00      
4 Ag 380 377 0.00      
5 Ag 265 262 0.00      
6 Au 352 349 0.32      
7 Au 128 127 0.00      
8 Bg 548 543 0.00      
9 Bu 1256 1244 204.06      
10 Bu 762 755 187.40      
11 Bu 377 374 0.20      
12 Bu 162 161 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 3864.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3829.7 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 PBEPBE/3-21G
ABC
0.13236 0.04810 0.03528

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.105 0.657 0.000
C2 0.105 -0.657 0.000
F3 -1.321 1.246 0.000
F4 1.321 -1.246 0.000
Cl5 1.321 1.773 0.000
Cl6 -1.321 -1.773 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33131.35122.37831.81082.7176
C21.33132.37831.35122.71761.8108
F31.35122.37833.63202.69483.0185
F42.37831.35123.63203.01852.6948
Cl51.81082.71762.69483.01854.4222
Cl62.71761.81083.01852.69484.4222

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 124.889 C1 C2 Cl6 118.951
C2 C1 F3 124.889 C2 C1 Cl5 118.951
F3 C1 Cl5 116.160 F4 C2 Cl6 116.160
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 0.027      
2 C 0.027      
3 F -0.178      
4 F -0.178      
5 Cl 0.151      
6 Cl 0.151      


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 -46.436 0.172 0.000
y 0.172 -47.083 0.000
z 0.000 0.000 -45.988
Traceless
 xyz
x 0.100 0.172 0.000
y 0.172 -0.872 0.000
z 0.000 0.000 0.772
Polar
3z2-r21.544
x2-y20.648
xy0.172
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.934 2.629 0.000
y 2.629 8.227 0.000
z 0.000 0.000 1.869


<r2> (average value of r2) Å2
<r2> 259.950
(<r2>)1/2 16.123