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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B2PLYP/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 B2PLYP/3-21G
 hartrees
Energy at 0K-14733.081562
Energy at 298.15K 
HF Energy-14732.990690
Nuclear repulsion energy1231.899585
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 B2PLYP/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 641 641 117.64 13.05 0.49 0.66
2 A1 312 312 0.37 20.24 0.03 0.06
3 A1 195 195 0.34 11.49 0.32 0.49
4 A1 110 110 0.09 6.18 0.67 0.81
5 A2 148 148 0.00 5.55 0.75 0.86
6 B1 643 643 97.57 8.48 0.75 0.86
7 B1 185 185 0.75 7.95 0.75 0.86
8 B2 621 621 115.11 10.91 0.75 0.86
9 B2 221 221 0.22 8.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1538.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1538.3 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 B2PLYP/3-21G
ABC
0.03584 0.01647 0.01439

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.608
Cl2 0.000 1.518 1.755
Cl3 0.000 -1.518 1.755
I4 1.844 0.000 -0.598
I5 -1.844 0.000 -0.598

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.90271.90272.20292.2029
Cl21.90273.03613.35263.3526
Cl31.90273.03613.35263.3526
I42.20293.35263.35263.6871
I52.20293.35263.35263.6871

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 105.846 Cl2 C1 I4 109.269
Cl2 C1 I5 109.269 Cl3 C1 I4 109.269
Cl3 C1 I5 109.269 I4 C1 I5 113.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.821      
2 Cl 0.085      
3 Cl 0.085      
4 I 0.326      
5 I 0.326      


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 -1.823 1.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -83.055 0.000 0.000
y 0.000 -90.632 0.000
z 0.000 0.000 -89.590
Traceless
 xyz
x 7.056 0.000 0.000
y 0.000 -4.310 0.000
z 0.000 0.000 -2.747
Polar
3z2-r2-5.493
x2-y27.578
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.530 0.000 0.000
y 0.000 8.218 0.000
z 0.000 0.000 9.871


<r2> (average value of r2) Å2
<r2> 638.272
(<r2>)1/2 25.264