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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-1196.867017
Energy at 298.15K-1196.870526
HF Energy-1196.867017
Nuclear repulsion energy377.778335
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 PBE1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3156 3008 0.73      
2 A 1427 1360 12.51      
3 A 1327 1265 20.32      
4 A 1171 1116 213.36      
5 A 1105 1053 50.35      
6 A 850 810 91.16      
7 A 465 443 2.46      
8 A 315 301 1.22      
9 A 164 156 0.71      
10 A 81 77 0.65      
11 B 3168 3019 14.61      
12 B 1370 1306 7.64      
13 B 1258 1199 30.86      
14 B 1146 1092 24.77      
15 B 837 798 116.25      
16 B 439 419 11.11      
17 B 392 374 7.61      
18 B 335 320 12.35      

Unscaled Zero Point Vibrational Energy (zpe) 9501.7 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 9056.1 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 PBE1PBE/6-31G**
ABC
0.09854 0.06036 0.03892

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.223 0.730 0.395
C2 0.223 -0.730 0.395
H3 -1.311 0.811 0.344
H4 1.311 -0.811 0.344
F5 0.223 1.280 1.550
F6 -0.223 -1.280 1.550
Cl7 0.470 1.609 -0.980
Cl8 -0.470 -1.609 -0.980

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52611.09272.17461.35392.31751.77312.7244
C21.52612.17461.09272.31751.35392.72441.7731
H31.09272.17463.08322.00652.64762.35802.8838
H42.17461.09273.08322.64762.00652.88382.3580
F51.35392.31752.00652.64762.59782.56333.9017
F62.31751.35392.64762.00652.59783.90172.5633
Cl71.77312.72442.35802.88382.56333.90173.3517
Cl82.72441.77312.88382.35803.90172.56333.3517

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 111.200 C1 C2 F6 107.008
C1 C2 Cl8 111.113 C2 C1 H3 111.200
C2 C1 F5 107.008 C2 C1 Cl7 111.113
H3 C1 F5 109.729 H3 C1 Cl7 108.390
H4 C2 F6 109.729 H4 C2 Cl8 108.390
F5 C1 Cl7 109.381 F6 C2 Cl8 109.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.025      
2 C 0.025      
3 H 0.236      
4 H 0.236      
5 F -0.256      
6 F -0.256      
7 Cl -0.005      
8 Cl -0.005      


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 -0.014 0.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.130 -2.331 0.000
y -2.331 -49.515 0.000
z 0.000 0.000 -49.162
Traceless
 xyz
x 5.209 -2.331 0.000
y -2.331 -2.869 0.000
z 0.000 0.000 -2.340
Polar
3z2-r2-4.680
x2-y25.386
xy-2.331
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.966 0.748 0.000
y 0.748 6.358 0.000
z 0.000 0.000 6.789


<r2> (average value of r2) Å2
<r2> 245.349
(<r2>)1/2 15.664