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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at G4
 hartrees
Energy at 0K-1195.929082
Energy at 298.15K-1195.922237
HF Energy-1196.250368
Nuclear repulsion energy350.294431
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 B3LYP/6-31G(2df,p)
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 1778 1715 0.00      
2 Ag 1203 1161 0.00      
3 Ag 645 622 0.00      
4 Ag 425 410 0.00      
5 Ag 290 280 0.00      
6 Au 373 360 1.08      
7 Au 135 130 0.03      
8 Bg 559 540 0.00      
9 Bu 1262 1218 270.05      
10 Bu 866 835 184.96      
11 Bu 425 410 1.66      
12 Bu 176 170 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 4067.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3925.5 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 B3LYP/6-31G(2df,p)
ABC
0.14306 0.05024 0.03718

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.072 0.662 0.000
C2 0.072 -0.662 0.000
F3 -1.259 1.236 0.000
F4 1.259 -1.236 0.000
Cl5 1.259 1.748 0.000
Cl6 -1.259 -1.748 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33171.31812.31791.71802.6862
C21.33172.31791.31812.68621.7180
F31.31812.31793.52802.56932.9837
F42.31791.31813.52802.98372.5693
Cl51.71802.68622.56932.98374.3082
Cl62.68621.71802.98372.56934.3082

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 121.936 C1 C2 Cl6 123.356
C2 C1 F3 121.936 C2 C1 Cl5 123.356
F3 C1 Cl5 114.708 F4 C2 Cl6 114.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.137      
2 C 0.137      
3 F -0.042      
4 F -0.042      
5 Cl -0.095      
6 Cl -0.095      


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


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


<r2> (average value of r2) Å2
<r2> 247.155
(<r2>)1/2 15.721