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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: B3LYP/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-58.292498
Energy at 298.15K 
HF Energy-58.292498
Nuclear repulsion energy75.651292
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/CEP-31G
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 634 614 176.44 10.84 0.75 0.86
2 A1 321 311 0.00 23.16 0.04 0.09
3 A1 192 186 0.05 17.07 0.33 0.50
4 A1 109 106 0.23 9.50 0.68 0.81
5 A2 148 143 0.00 8.49 0.75 0.86
6 B1 591 572 174.58 13.22 0.75 0.86
7 B1 184 178 0.05 12.68 0.75 0.86
8 B2 646 626 152.82 5.43 0.75 0.86
9 B2 225 217 0.59 13.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1524.3 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 1476.1 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/CEP-31G
ABC
0.03566 0.01662 0.01451

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.649
Cl2 0.000 1.524 1.755
Cl3 0.000 -1.524 1.755
I4 1.832 0.000 -0.600
I5 -1.832 0.000 -0.600

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.88321.88322.21662.2166
Cl21.88323.04763.35003.3500
Cl31.88323.04763.35003.3500
I42.21663.35003.35003.6637
I52.21663.35003.35003.6637

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 108.027 Cl2 C1 I4 109.321
Cl2 C1 I5 109.321 Cl3 C1 I4 109.321
Cl3 C1 I5 109.321 I4 C1 I5 111.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.761      
2 Cl 0.091      
3 Cl 0.091      
4 I 0.290      
5 I 0.290      


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 -1.483 1.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -65.633 0.000 0.000
y 0.000 -72.067 0.000
z 0.000 0.000 -70.786
Traceless
 xyz
x 5.793 0.000 0.000
y 0.000 -3.858 0.000
z 0.000 0.000 -1.936
Polar
3z2-r2-3.871
x2-y26.434
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.445 0.000 0.000
y 0.000 7.991 0.000
z 0.000 0.000 10.199


<r2> (average value of r2) Å2
<r2> 172.733
(<r2>)1/2 13.143