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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-981.233496
Energy at 298.15K 
HF Energy-981.233496
Nuclear repulsion energy211.026123
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 B3LYP/SDD
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 628 604 152.54 5.65 0.75 0.86
2 A1 321 308 0.00 19.42 0.06 0.11
3 A1 195 187 0.02 14.27 0.30 0.47
4 A1 112 108 0.26 9.19 0.69 0.81
5 A2 151 145 0.00 6.77 0.75 0.86
6 B1 592 569 163.63 5.83 0.75 0.86
7 B1 185 178 0.03 10.66 0.75 0.86
8 B2 635 610 129.29 3.86 0.75 0.86
9 B2 225 216 0.41 10.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1521.3 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 1462.4 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 B3LYP/SDD
ABC
0.03599 0.01678 0.01461

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.648
Cl2 0.000 1.512 1.750
Cl3 0.000 -1.512 1.750
I4 1.825 0.000 -0.598
I5 -1.825 0.000 -0.598

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.87061.87062.20962.2096
Cl21.87063.02333.33593.3359
Cl31.87063.02333.33593.3359
I42.20963.33593.33593.6493
I52.20963.33593.33593.6493

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 107.818 Cl2 C1 I4 109.404
Cl2 C1 I5 109.404 Cl3 C1 I4 109.404
Cl3 C1 I5 109.404 I4 C1 I5 111.335
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.705      
2 Cl 0.096      
3 Cl 0.096      
4 I 0.256      
5 I 0.256      


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 -1.334 1.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.300 0.000 0.000
y 0.000 -73.394 0.000
z 0.000 0.000 -71.654
Traceless
 xyz
x 5.223 0.000 0.000
y 0.000 -3.916 0.000
z 0.000 0.000 -1.307
Polar
3z2-r2-2.614
x2-y26.093
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.180 0.000 0.000
y 0.000 7.726 0.000
z 0.000 0.000 10.105


<r2> (average value of r2) Å2
<r2> 280.173
(<r2>)1/2 16.738