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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-1189.872780
Energy at 298.15K-1189.873215
HF Energy-1189.872780
Nuclear repulsion energy346.298264
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 1718 1638 0.00      
2 Ag 1162 1108 0.00      
3 Ag 617 588 0.00      
4 Ag 409 390 0.00      
5 Ag 281 268 0.00      
6 Au 358 342 0.15      
7 Au 133 127 0.18      
8 Bg 578 551 0.00      
9 Bu 1227 1170 184.51      
10 Bu 833 795 181.32      
11 Bu 399 381 0.25      
12 Bu 169 161 3.45      

Unscaled Zero Point Vibrational Energy (zpe) 3942.0 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 3758.7 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
0.13416 0.05053 0.03670

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 -0.073 0.666 0.000
C2 0.073 -0.666 0.000
F3 -1.297 1.264 0.000
F4 1.297 -1.264 0.000
Cl5 1.297 1.717 0.000
Cl6 -1.297 -1.717 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.34091.36192.36741.72682.6793
C21.34092.36741.36192.67931.7268
F31.36192.36743.62222.63352.9810
F42.36741.36193.62222.98102.6335
Cl51.72682.67932.63352.98104.3038
Cl62.67931.72682.98102.63354.3038

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 122.305 C1 C2 Cl6 121.194
C2 C1 F3 122.305 C2 C1 Cl5 121.194
F3 C1 Cl5 116.501 F4 C2 Cl6 116.501
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 0.085      
2 C 0.085      
3 F -0.195      
4 F -0.195      
5 Cl 0.110      
6 Cl 0.110      


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 -45.304 1.769 0.000
y 1.769 -45.581 0.000
z 0.000 0.000 -45.543
Traceless
 xyz
x 0.257 1.769 0.000
y 1.769 -0.157 0.000
z 0.000 0.000 -0.100
Polar
3z2-r2-0.201
x2-y20.276
xy1.769
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.871 2.287 0.000
y 2.287 8.409 0.000
z 0.000 0.000 2.465


<r2> (average value of r2) Å2
<r2> 250.280
(<r2>)1/2 15.820