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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at G4
 hartrees
Energy at 0K-1197.155610
Energy at 298.15K-1197.148433
HF Energy-1197.493011
Nuclear repulsion energy375.821648
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 A 3106 2997 0.39      
2 A 1397 1348 9.67      
3 A 1288 1243 9.12      
4 A 1140 1101 209.85      
5 A 1065 1028 45.15      
6 A 813 785 89.11      
7 A 448 432 3.23      
8 A 310 299 1.26      
9 A 161 156 0.50      
10 A 74 71 0.61      
11 B 3118 3009 12.12      
12 B 1348 1301 5.99      
13 B 1222 1179 32.71      
14 B 1112 1073 20.96      
15 B 799 772 105.87      
16 B 434 419 10.93      
17 B 382 368 6.00      
18 B 325 314 9.64      

Unscaled Zero Point Vibrational Energy (zpe) 9271.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8946.7 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
0.09771 0.05944 0.03851

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.216 0.736 0.399
C2 0.216 -0.736 0.399
H3 -1.300 0.835 0.320
H4 1.300 -0.835 0.320
F5 0.216 1.288 1.554
F6 -0.216 -1.288 1.554
Cl7 0.516 1.610 -0.983
Cl8 -0.516 -1.610 -0.983

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53391.09192.18471.35092.33021.79132.7392
C21.53392.18471.09192.33021.35092.73921.7913
H31.09192.18473.09062.00682.68442.36552.8792
H42.18471.09193.09062.68442.00682.87922.3655
F51.35092.33022.00682.68442.61172.57483.9203
F62.33021.35092.68442.00682.61173.92032.5748
Cl71.79132.73922.36552.87922.57483.92033.3812
Cl82.73921.79132.87922.36553.92032.57483.3812

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 112.313 C1 C2 F6 107.456
C1 C2 Cl8 112.456 C2 C1 H3 112.313
C2 C1 F5 107.456 C2 C1 Cl7 112.456
H3 C1 F5 108.870 H3 C1 Cl7 107.733
H4 C2 F6 108.870 H4 C2 Cl8 107.733
F5 C1 Cl7 107.879 F6 C2 Cl8 107.879
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 0.085      
2 C 0.085      
3 H 0.159      
4 H 0.159      
5 F -0.101      
6 F -0.101      
7 Cl -0.143      
8 Cl -0.143      


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 0.099 0.099
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> 247.790
(<r2>)1/2 15.741