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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-14736.982865
Energy at 298.15K 
HF Energy-14736.982865
Nuclear repulsion energy1272.109529
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 B1B95/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 690 658 113.20 12.24 0.49 0.66
2 A1 353 337 0.11 14.98 0.02 0.04
3 A1 209 200 0.07 9.01 0.23 0.37
4 A1 106 101 0.05 3.47 0.62 0.77
5 A2 152 145 0.00 2.98 0.75 0.86
6 B1 660 630 89.00 14.90 0.75 0.86
7 B1 193 184 0.20 5.20 0.75 0.86
8 B2 692 661 104.94 3.19 0.75 0.86
9 B2 223 212 0.21 4.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1638.9 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 1565.0 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 B1B95/3-21G*
ABC
0.03818 0.01765 0.01532

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.669
Cl2 0.000 1.456 1.702
Cl3 0.000 -1.456 1.702
I4 1.783 0.000 -0.584
I5 -1.783 0.000 -0.584

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.78581.78582.17892.1789
Cl21.78582.91273.24433.2443
Cl31.78582.91273.24433.2443
I42.17893.24433.24433.5659
I52.17893.24433.24433.5659

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.277 Cl2 C1 I4 109.431
Cl2 C1 I5 109.431 Cl3 C1 I4 109.431
Cl3 C1 I5 109.431 I4 C1 I5 109.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.602      
2 Cl 0.104      
3 Cl 0.104      
4 I 0.197      
5 I 0.197      


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 -0.913 0.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -82.067 0.000 0.000
y 0.000 -87.774 0.000
z 0.000 0.000 -86.257
Traceless
 xyz
x 4.948 0.000 0.000
y 0.000 -3.611 0.000
z 0.000 0.000 -1.337
Polar
3z2-r2-2.673
x2-y25.706
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.676 0.000 0.000
y 0.000 10.605 0.000
z 0.000 0.000 12.022


<r2> (average value of r2) Å2
<r2> 599.724
(<r2>)1/2 24.489