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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: TPSSh/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/Def2TZVPP
 hartrees
Energy at 0K-1553.782248
Energy at 298.15K 
HF Energy-1553.782248
Nuclear repulsion energy558.177270
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 TPSSh/Def2TZVPP
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 681 681 126.87 18.14 0.36 0.53
2 A1 347 347 0.02 14.15 0.01 0.02
3 A1 198 198 0.09 10.30 0.19 0.32
4 A1 104 104 0.06 3.68 0.59 0.74
5 A2 148 148 0.00 2.60 0.75 0.86
6 B1 599 599 113.12 19.08 0.75 0.86
7 B1 184 184 0.05 5.45 0.75 0.86
8 B2 714 714 113.46 1.80 0.75 0.86
9 B2 219 219 0.34 3.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1597.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1597.1 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 TPSSh/Def2TZVPP
ABC
0.03853 0.01777 0.01542

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.675
Cl2 0.000 1.446 1.696
Cl3 0.000 -1.446 1.696
I4 1.778 0.000 -0.582
I5 -1.778 0.000 -0.582

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.77041.77042.17732.1773
Cl21.77042.89253.23133.2313
Cl31.77042.89253.23133.2313
I42.17733.23133.23133.5558
I52.17733.23133.23133.5558

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.552 Cl2 C1 I4 109.447
Cl2 C1 I5 109.447 Cl3 C1 I4 109.447
Cl3 C1 I5 109.447 I4 C1 I5 109.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 Cl -0.039      
3 Cl -0.039      
4 I 0.017      
5 I 0.017      


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 -0.406 0.406
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 17.603 0.000 0.000
y 0.000 12.634 0.000
z 0.000 0.000 14.462


<r2> (average value of r2) Å2
<r2> 397.932
(<r2>)1/2 19.948