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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B3PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/Def2TZVPP
 hartrees
Energy at 0K-1554.112847
Energy at 298.15K 
HF Energy-1554.112847
Nuclear repulsion energy560.331953
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 B3PW91/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 705 705 117.61 18.28 0.33 0.50
2 A1 356 356 0.02 13.37 0.01 0.02
3 A1 204 204 0.06 9.67 0.19 0.32
4 A1 108 108 0.07 3.41 0.59 0.74
5 A2 153 153 0.00 2.45 0.75 0.86
6 B1 617 617 104.56 19.12 0.75 0.86
7 B1 190 190 0.03 5.03 0.75 0.86
8 B2 743 743 105.26 1.43 0.75 0.86
9 B2 227 227 0.39 3.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1651.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1651.6 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 B3PW91/Def2TZVPP
ABC
0.03884 0.01790 0.01553

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.673
Cl2 0.000 1.441 1.689
Cl3 0.000 -1.441 1.689
I4 1.772 0.000 -0.580
I5 -1.772 0.000 -0.580

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.76241.76242.17002.1700
Cl21.76242.88143.21863.2186
Cl31.76242.88143.21863.2186
I42.17003.21863.21863.5432
I52.17003.21863.21863.5432

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.661 Cl2 C1 I4 109.428
Cl2 C1 I5 109.428 Cl3 C1 I4 109.428
Cl3 C1 I5 109.428 I4 C1 I5 109.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.023      
2 Cl -0.022      
3 Cl -0.022      
4 I 0.033      
5 I 0.033      


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 -0.398 0.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -80.158 0.000 0.000
y 0.000 -83.581 0.000
z 0.000 0.000 -82.370
Traceless
 xyz
x 2.818 0.000 0.000
y 0.000 -2.317 0.000
z 0.000 0.000 -0.501
Polar
3z2-r2-1.002
x2-y23.423
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 17.306 0.000 0.000
y 0.000 12.493 0.000
z 0.000 0.000 14.268


<r2> (average value of r2) Å2
<r2> 395.205
(<r2>)1/2 19.880