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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: PM6

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM6
 hartrees
Energy at 0K 
Energy at 298.15K0.071474
HF Energy0.071474
Nuclear repulsion energy110.551597
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 PM6
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 772 821 239.27      
2 A1 381 405 2.52      
3 A1 202 215 0.00      
4 A1 83 88 0.02      
5 A2 108 114 0.00      
6 B1 631 670 162.42      
7 B1 163 173 0.01      
8 B2 789 838 257.15      
9 B2 182 193 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 1655.0 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 1758.3 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 PM6
ABC
0.03760 0.01839 0.01548

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.706
Cl2 0.000 1.404 1.750
Cl3 0.000 -1.404 1.750
I4 1.752 0.000 -0.601
I5 -1.752 0.000 -0.601

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.74981.74982.18562.1856
Cl21.74982.80793.25083.2508
Cl31.74982.80793.25083.2508
I42.18563.25083.25083.5036
I52.18563.25083.25083.5036

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 106.712 Cl2 C1 I4 110.909
Cl2 C1 I5 110.909 Cl3 C1 I4 110.909
Cl3 C1 I5 110.909 I4 C1 I5 106.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability