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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP2/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/cc-pVTZ-PP
 hartrees
Energy at 0K-1547.157129
Energy at 298.15K 
HF Energy-1546.190729
Nuclear repulsion energy561.942025
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 MP2/cc-pVTZ-PP
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 738 738 90.96 7.59 0.39 0.56
2 A1 360 360 0.00 10.84 0.02 0.04
3 A1 212 212 0.00 6.80 0.21 0.34
4 A1 113 113 0.07 2.62 0.61 0.76
5 A2 157 157 0.00 2.22 0.75 0.86
6 B1 661 661 79.59 9.35 0.75 0.86
7 B1 198 198 0.07 3.45 0.75 0.86
8 B2 774 774 81.75 1.31 0.75 0.86
9 B2 233 233 0.37 3.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1722.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1722.8 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 MP2/cc-pVTZ-PP
ABC
0.03899 0.01806 0.01568

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.660
Cl2 0.000 1.442 1.684
Cl3 0.000 -1.442 1.684
I4 1.762 0.000 -0.577
I5 -1.762 0.000 -0.577

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.76871.76872.15332.1533
Cl21.76872.88483.20913.2091
Cl31.76872.88483.20913.2091
I42.15333.20913.20913.5244
I52.15333.20913.20913.5244

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.277 Cl2 C1 I4 109.426
Cl2 C1 I5 109.426 Cl3 C1 I4 109.426
Cl3 C1 I5 109.426 I4 C1 I5 109.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability