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

using model chemistry: B2PLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-1190.890551
Energy at 298.15K-1190.893725
HF Energy-1190.717802
Nuclear repulsion energy366.320460
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 B2PLYP/3-21G
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 3210 3210 0.99      
2 A 1434 1434 3.54      
3 A 1297 1297 19.56      
4 A 1143 1143 144.23      
5 A 1058 1058 52.99      
6 A 748 748 76.43      
7 A 397 397 7.82      
8 A 277 277 0.86      
9 A 153 153 1.82      
10 A 75 75 0.87      
11 B 3224 3224 2.82      
12 B 1363 1363 1.56      
13 B 1242 1242 34.76      
14 B 1103 1103 6.13      
15 B 722 722 114.77      
16 B 397 397 18.32      
17 B 344 344 14.80      
18 B 311 311 9.65      

Unscaled Zero Point Vibrational Energy (zpe) 9248.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9248.1 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 B2PLYP/3-21G
ABC
0.08962 0.05840 0.03686

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.232 0.722 0.448
C2 0.232 -0.722 0.448
H3 -1.306 0.819 0.344
H4 1.306 -0.819 0.344
F5 0.232 1.323 1.613
F6 -0.232 -1.323 1.613
Cl7 0.538 1.610 -1.032
Cl8 -0.538 -1.610 -1.032

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51701.08422.18011.39022.35421.88962.7791
C21.51702.18011.08422.35421.39022.77911.8896
H31.08422.18013.08422.05622.71232.43332.8959
H42.18011.08423.08422.71232.05622.89592.4333
F51.39022.35422.05622.71232.68712.67814.0239
F62.35421.39022.71232.05622.68714.02392.6781
Cl71.88962.77912.43332.89592.67814.02393.3945
Cl82.77911.88962.89592.43334.02392.67813.3945

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 112.827 C1 C2 F6 108.066
C1 C2 Cl8 108.838 C2 C1 H3 112.827
C2 C1 F5 108.066 C2 C1 Cl7 108.838
H3 C1 F5 111.815 H3 C1 Cl7 106.661
H4 C2 F6 111.815 H4 C2 Cl8 106.661
F5 C1 Cl7 108.520 F6 C2 Cl8 108.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.039      
2 C -0.039      
3 H 0.287      
4 H 0.287      
5 F -0.257      
6 F -0.257      
7 Cl 0.009      
8 Cl 0.009      


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 0.540 0.540
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.122 -3.394 0.000
y -3.394 -52.294 0.000
z 0.000 0.000 -51.632
Traceless
 xyz
x 6.841 -3.394 0.000
y -3.394 -3.917 0.000
z 0.000 0.000 -2.924
Polar
3z2-r2-5.848
x2-y27.172
xy-3.394
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.138 1.102 0.000
y 1.102 5.430 0.000
z 0.000 0.000 6.862


<r2> (average value of r2) Å2
<r2> 258.820
(<r2>)1/2 16.088