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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-1197.266345
Energy at 298.15K-1197.269804
HF Energy-1197.266345
Nuclear repulsion energy376.473127
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 B3PW91/6-31G**
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 3131 3001 0.54      
2 A 1410 1351 10.93      
3 A 1308 1254 15.75      
4 A 1152 1104 216.46      
5 A 1086 1041 48.44      
6 A 833 799 94.56      
7 A 457 438 2.93      
8 A 312 299 1.19      
9 A 163 156 0.70      
10 A 79 76 0.65      
11 B 3142 3012 14.51      
12 B 1355 1298 6.89      
13 B 1241 1190 30.73      
14 B 1127 1080 24.49      
15 B 820 786 116.19      
16 B 436 417 11.44      
17 B 387 371 7.50      
18 B 331 317 11.94      

Unscaled Zero Point Vibrational Energy (zpe) 9384.9 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 8994.4 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 B3PW91/6-31G**
ABC
0.09787 0.05991 0.03865

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.222 0.732 0.397
C2 0.222 -0.732 0.397
H3 -1.310 0.818 0.339
H4 1.310 -0.818 0.339
F5 0.222 1.285 1.555
F6 -0.222 -1.285 1.555
Cl7 0.478 1.613 -0.983
Cl8 -0.478 -1.613 -0.983

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52951.09282.17951.35772.32581.78132.7330
C21.52952.17951.09282.32581.35772.73301.7813
H31.09282.17953.08802.01092.66192.36182.8889
H42.17951.09283.08802.66192.01092.88892.3618
F51.35772.32582.01092.66192.60892.57223.9158
F62.32581.35772.66192.01092.60893.91582.5722
Cl71.78132.73302.36182.88892.57223.91583.3644
Cl82.73301.78132.88892.36183.91582.57223.3644

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 111.342 C1 C2 F6 107.182
C1 C2 Cl8 111.050 C2 C1 H3 111.342
C2 C1 F5 107.182 C2 C1 Cl7 111.050
H3 C1 F5 109.819 H3 C1 Cl7 108.117
H4 C2 F6 109.819 H4 C2 Cl8 108.117
F5 C1 Cl7 109.317 F6 C2 Cl8 109.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.073      
2 C 0.073      
3 H 0.195      
4 H 0.195      
5 F -0.257      
6 F -0.257      
7 Cl -0.012      
8 Cl -0.012      


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 0.001 0.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.040 -2.377 0.000
y -2.377 -49.454 0.000
z 0.000 0.000 -49.120
Traceless
 xyz
x 5.248 -2.377 0.000
y -2.377 -2.874 0.000
z 0.000 0.000 -2.373
Polar
3z2-r2-4.747
x2-y25.414
xy-2.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.014 0.767 0.000
y 0.767 6.443 0.000
z 0.000 0.000 6.883


<r2> (average value of r2) Å2
<r2> 246.847
(<r2>)1/2 15.711