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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-89.241748
Energy at 298.15K-89.245484
HF Energy-89.241748
Nuclear repulsion energy137.202022
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/CEP-121G*
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 3350 3027 0.72      
2 A 1560 1409 15.57      
3 A 1435 1297 31.77      
4 A 1249 1129 256.39      
5 A 1169 1056 97.49      
6 A 912 824 98.69      
7 A 494 446 0.87      
8 A 335 302 1.94      
9 A 176 159 0.83      
10 A 83 75 0.90      
11 B 3360 3036 21.47      
12 B 1480 1337 11.31      
13 B 1356 1225 47.62      
14 B 1212 1095 37.89      
15 B 905 818 140.09      
16 B 468 423 18.05      
17 B 421 381 9.26      
18 B 358 323 15.11      

Unscaled Zero Point Vibrational Energy (zpe) 10161.7 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 9180.1 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 HF/CEP-121G*
ABC
0.09954 0.05953 0.03874

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.223 0.735 0.396
C2 0.223 -0.735 0.396
H3 -1.297 0.826 0.351
H4 1.297 -0.826 0.351
F5 0.223 1.292 1.540
F6 -0.223 -1.292 1.540
Cl7 0.480 1.617 -0.975
Cl8 -0.480 -1.617 -0.975

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53571.07872.17831.34842.32761.77532.7344
C21.53572.17831.07872.32761.34842.73441.7753
H31.07872.17833.07431.98482.65552.35422.8969
H42.17831.07873.07432.65551.98482.89692.3542
F51.34842.32761.98482.65552.62232.54933.9094
F62.32761.34842.65551.98482.62233.90942.5493
Cl71.77532.73442.35422.89692.54933.90943.3733
Cl82.73441.77532.89692.35423.90942.54933.3733

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 111.666 C1 C2 F6 107.444
C1 C2 Cl8 111.145 C2 C1 H3 111.666
C2 C1 F5 107.444 C2 C1 Cl7 111.145
H3 C1 F5 109.217 H3 C1 Cl7 108.682
H4 C2 F6 109.217 H4 C2 Cl8 108.682
F5 C1 Cl7 108.623 F6 C2 Cl8 108.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.226      
2 C 0.226      
3 H 0.210      
4 H 0.210      
5 F -0.300      
6 F -0.300      
7 Cl -0.136      
8 Cl -0.136      


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 -0.480 0.480
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.171 -2.841 0.000
y -2.841 -49.507 0.000
z 0.000 0.000 -49.870
Traceless
 xyz
x 6.518 -2.841 0.000
y -2.841 -2.986 0.000
z 0.000 0.000 -3.531
Polar
3z2-r2-7.063
x2-y26.336
xy-2.841
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.197 0.691 0.000
y 0.691 6.418 0.000
z 0.000 0.000 6.904


<r2> (average value of r2) Å2
<r2> 151.032
(<r2>)1/2 12.290