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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1197.447456
Energy at 298.15K-1197.450940
HF Energy-1197.447456
Nuclear repulsion energy378.689734
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 mPW1PW91/6-31G(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 3129 2988 0.47      
2 A 1408 1345 12.15      
3 A 1298 1239 7.72      
4 A 1169 1116 214.88      
5 A 1089 1039 44.54      
6 A 840 802 82.74      
7 A 462 442 2.10      
8 A 313 299 1.13      
9 A 162 155 0.48      
10 A 77 73 0.63      
11 B 3142 3000 11.48      
12 B 1354 1293 6.34      
13 B 1230 1174 28.06      
14 B 1142 1090 22.32      
15 B 831 793 102.67      
16 B 439 420 10.25      
17 B 391 373 6.00      
18 B 329 314 10.47      

Unscaled Zero Point Vibrational Energy (zpe) 9402.9 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 8976.9 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 mPW1PW91/6-31G(2df,p)
ABC
0.09894 0.06062 0.03916

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.216 0.733 0.397
C2 0.216 -0.733 0.397
H3 -1.301 0.825 0.323
H4 1.301 -0.825 0.323
F5 0.216 1.284 1.545
F6 -0.216 -1.284 1.545
Cl7 0.503 1.592 -0.977
Cl8 -0.503 -1.592 -0.977

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52781.09152.17551.34442.32071.77222.7153
C21.52782.17551.09152.32071.34442.71531.7722
H31.09152.17553.08092.00072.66852.35122.8578
H42.17551.09153.08092.66852.00072.85782.3512
F51.34442.32072.00072.66852.60422.55623.8915
F62.32071.34442.66852.00072.60423.89152.5562
Cl71.77222.71532.35122.85782.55623.89153.3386
Cl82.71531.77222.85782.35123.89152.55623.3386

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 111.221 C1 C2 F6 107.630
C1 C2 Cl8 110.520 C2 C1 H3 111.221
C2 C1 F5 107.630 C2 C1 Cl7 110.520
H3 C1 F5 110.008 H3 C1 Cl7 108.011
H4 C2 F6 110.008 H4 C2 Cl8 108.011
F5 C1 Cl7 109.446 F6 C2 Cl8 109.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.056      
2 C 0.056      
3 H 0.184      
4 H 0.184      
5 F -0.116      
6 F -0.116      
7 Cl -0.124      
8 Cl -0.124      


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 0.066 0.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.884 -2.301 0.000
y -2.301 -48.905 0.000
z 0.000 0.000 -48.781
Traceless
 xyz
x 4.959 -2.301 0.000
y -2.301 -2.572 0.000
z 0.000 0.000 -2.387
Polar
3z2-r2-4.774
x2-y25.021
xy-2.301
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.808 0.732 0.000
y 0.732 7.320 0.000
z 0.000 0.000 7.441


<r2> (average value of r2) Å2
<r2> 243.964
(<r2>)1/2 15.619