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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-1196.976506
Energy at 298.15K-1196.979810
HF Energy-1196.976506
Nuclear repulsion energy374.774714
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 PBEPBE/cc-pVTZ
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 3027 3006 0.16      
2 A 1332 1323 5.11      
3 A 1231 1223 5.07      
4 A 1079 1071 155.53      
5 A 1024 1017 111.35      
6 A 789 784 98.84      
7 A 439 436 2.39      
8 A 300 298 1.03      
9 A 157 156 0.41      
10 A 71 71 0.52      
11 B 3040 3019 10.94      
12 B 1282 1273 4.28      
13 B 1177 1169 23.38      
14 B 1035 1028 28.99      
15 B 778 772 92.28      
16 B 419 416 9.86      
17 B 370 368 6.25      
18 B 313 311 9.27      

Unscaled Zero Point Vibrational Energy (zpe) 8931.0 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 8869.4 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 PBEPBE/cc-pVTZ
ABC
0.09632 0.05983 0.03843

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.220 0.734 0.402
C2 0.220 -0.734 0.402
H3 -1.312 0.830 0.338
H4 1.312 -0.830 0.338
F5 0.220 1.309 1.566
F6 -0.220 -1.309 1.566
Cl7 0.496 1.598 -0.991
Cl8 -0.496 -1.598 -0.991

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53341.09762.19071.37062.35121.78862.7309
C21.53342.19071.09762.35121.37062.73091.7886
H31.09762.19073.10492.02072.69682.37152.8863
H42.19071.09763.10492.69682.02072.88632.3715
F51.37062.35122.02072.69682.65392.58793.9371
F62.35121.37062.69682.02072.65393.93712.5879
Cl71.78862.73092.37152.88632.58793.93713.3471
Cl82.73091.78862.88632.37153.93712.58793.3471

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 111.674 C1 C2 F6 107.993
C1 C2 Cl8 110.347 C2 C1 H3 111.674
C2 C1 F5 107.993 C2 C1 Cl7 110.347
H3 C1 F5 109.412 H3 C1 Cl7 108.105
H4 C2 F6 109.412 H4 C2 Cl8 108.105
F5 C1 Cl7 109.285 F6 C2 Cl8 109.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.154      
2 C 0.154      
3 H 0.097      
4 H 0.097      
5 F -0.146      
6 F -0.146      
7 Cl -0.105      
8 Cl -0.105      


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 -0.200 0.200
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.655 -2.170 0.000
y -2.170 -49.557 0.000
z 0.000 0.000 -49.636
Traceless
 xyz
x 4.941 -2.170 0.000
y -2.170 -2.412 0.000
z 0.000 0.000 -2.529
Polar
3z2-r2-5.059
x2-y24.902
xy-2.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.123 0.726 0.000
y 0.726 7.856 0.000
z 0.000 0.000 8.164


<r2> (average value of r2) Å2
<r2> 248.431
(<r2>)1/2 15.762