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All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-1183.477086
Energy at 298.15K-1183.480021
HF Energy-1183.477086
Nuclear repulsion energy362.891601
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 B3PW91/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3303 2923 0.48      
2 A 1446 1280 15.68      
3 A 1318 1167 22.00      
4 A 1243 1100 111.19      
5 A 1035 916 3.00      
6 A 836 740 49.50      
7 A 453 401 6.71      
8 A 268 237 0.14      
9 A 139 123 0.66      
10 A 52 46 1.32      
11 B 3309 2929 0.47      
12 B 1404 1242 11.44      
13 B 1247 1104 33.07      
14 B 1245 1102 0.99      
15 B 831 735 74.48      
16 B 438 388 11.69      
17 B 375 332 5.13      
18 B 297 263 11.04      

Unscaled Zero Point Vibrational Energy (zpe) 9619.3 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 8513.0 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 B3PW91/STO-3G
ABC
0.08955 0.05568 0.03625

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.190 0.780 0.421
C2 0.190 -0.780 0.421
H3 -1.283 0.918 0.220
H4 1.283 -0.918 0.220
F5 0.190 1.358 1.613
F6 -0.190 -1.358 1.613
Cl7 0.694 1.592 -1.015
Cl8 -0.694 -1.592 -1.015

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.60631.12002.25711.37702.44761.87182.8187
C21.60632.25711.12002.44761.37702.81871.8718
H31.12002.25713.15522.07402.88372.42642.8585
H42.25711.12003.15522.88372.07402.85852.4264
F51.37702.44762.07402.88372.74172.68624.0479
F62.44761.37702.88372.07402.74174.04792.6862
Cl71.87182.81872.42642.85852.68624.04793.4729
Cl82.81871.87182.85852.42644.04792.68623.4729

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.500 C1 C2 F6 110.013
C1 C2 Cl8 108.029 C2 C1 H3 110.500
C2 C1 F5 110.013 C2 C1 Cl7 108.029
H3 C1 F5 111.905 H3 C1 Cl7 105.622
H4 C2 F6 111.905 H4 C2 Cl8 105.622
F5 C1 Cl7 110.624 F6 C2 Cl8 110.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.080      
2 C 0.080      
3 H 0.126      
4 H 0.126      
5 F -0.043      
6 F -0.043      
7 Cl -0.163      
8 Cl -0.163      


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 2.382 2.382
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.830 -3.506 0.000
y -3.506 -46.865 0.000
z 0.000 0.000 -45.333
Traceless
 xyz
x 4.270 -3.506 0.000
y -3.506 -3.284 0.000
z 0.000 0.000 -0.986
Polar
3z2-r2-1.972
x2-y25.035
xy-3.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.419 0.852 0.000
y 0.852 3.063 0.000
z 0.000 0.000 4.445


<r2> (average value of r2) Å2
<r2> 261.057
(<r2>)1/2 16.157