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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-14735.344842
Energy at 298.15K 
HF Energy-14735.344842
Nuclear repulsion energy1254.229209
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/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 656 631 120.34 12.12 0.52 0.68
2 A1 341 328 0.29 15.73 0.02 0.04
3 A1 203 195 0.01 10.55 0.21 0.34
4 A1 106 102 0.08 4.05 0.60 0.75
5 A2 152 146 0.00 3.13 0.75 0.86
6 B1 625 601 100.75 14.59 0.75 0.86
7 B1 188 181 0.03 6.01 0.75 0.86
8 B2 649 624 109.88 3.57 0.75 0.86
9 B2 221 213 0.49 4.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1569.8 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1510.2 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/3-21G*
ABC
0.03734 0.01710 0.01486

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.673
Cl2 0.000 1.472 1.722
Cl3 0.000 -1.472 1.722
I4 1.813 0.000 -0.591
I5 -1.813 0.000 -0.591

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.80721.80722.21002.2100
Cl21.80722.94343.28663.2866
Cl31.80722.94343.28663.2866
I42.21003.28663.28663.6258
I52.21003.28663.28663.6258

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.045 Cl2 C1 I4 109.386
Cl2 C1 I5 109.386 Cl3 C1 I4 109.386
Cl3 C1 I5 109.386 I4 C1 I5 110.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.533      
2 Cl 0.084      
3 Cl 0.084      
4 I 0.183      
5 I 0.183      


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 -0.915 0.915
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -82.382 0.000 0.000
y 0.000 -88.120 0.000
z 0.000 0.000 -86.647
Traceless
 xyz
x 5.002 0.000 0.000
y 0.000 -3.606 0.000
z 0.000 0.000 -1.396
Polar
3z2-r2-2.792
x2-y25.738
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 15.118 0.000 0.000
y 0.000 10.760 0.000
z 0.000 0.000 12.264


<r2> (average value of r2) Å2
<r2> 616.099
(<r2>)1/2 24.821