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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-1194.578610
Energy at 298.15K-1194.582202
HF Energy-1194.578610
Nuclear repulsion energy371.350083
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 HF/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 3399 3069 1.10      
2 A 1540 1391 3.45      
3 A 1414 1277 26.24      
4 A 1245 1124 69.96      
5 A 1147 1035 170.76      
6 A 853 770 90.47      
7 A 460 416 2.06      
8 A 324 293 2.44      
9 A 172 155 1.67      
10 A 82 74 1.49      
11 B 3411 3080 1.34      
12 B 1456 1314 8.23      
13 B 1362 1230 38.97      
14 B 1159 1046 16.17      
15 B 837 756 151.80      
16 B 443 400 24.87      
17 B 397 358 14.22      
18 B 353 319 21.60      

Unscaled Zero Point Vibrational Energy (zpe) 10025.9 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 9052.4 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 HF/6-31G
ABC
0.09552 0.05814 0.03749

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.239 0.714 0.409
C2 0.239 -0.714 0.409
H3 -1.305 0.803 0.382
H4 1.305 -0.803 0.382
F5 0.239 1.299 1.572
F6 -0.239 -1.299 1.572
Cl7 0.451 1.653 -0.999
Cl8 -0.451 -1.653 -0.999

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.50611.07052.16491.38662.32461.82812.7628
C21.50612.16491.07052.32461.38662.76281.8281
H31.07052.16493.06502.01162.63982.39152.9444
H42.16491.07053.06502.63982.01162.94442.3915
F51.38662.32462.01162.63982.64072.60453.9752
F62.32461.38662.63982.01162.64073.97522.6045
Cl71.82812.76282.39152.94442.60453.97523.4273
Cl82.76281.82812.94442.39153.97522.60453.4273

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 113.234 C1 C2 F6 106.880
C1 C2 Cl8 111.549 C2 C1 H3 113.234
C2 C1 F5 106.880 C2 C1 Cl7 111.549
H3 C1 F5 109.232 H3 C1 Cl7 108.333
H4 C2 F6 109.232 H4 C2 Cl8 108.333
F5 C1 Cl7 107.436 F6 C2 Cl8 107.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.062      
2 C 0.062      
3 H 0.271      
4 H 0.271      
5 F -0.393      
6 F -0.393      
7 Cl 0.061      
8 Cl 0.061      


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 -0.772 0.772
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.653 -3.800 0.000
y -3.800 -53.183 0.000
z 0.000 0.000 -54.017
Traceless
 xyz
x 8.946 -3.800 0.000
y -3.800 -3.848 0.000
z 0.000 0.000 -5.098
Polar
3z2-r2-10.196
x2-y28.530
xy-3.800
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.104 1.018 0.000
y 1.018 5.535 0.000
z 0.000 0.000 6.561


<r2> (average value of r2) Å2
<r2> 255.092
(<r2>)1/2 15.972