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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-979.296656
Energy at 298.15K 
HF Energy-979.034192
Nuclear repulsion energy209.263491
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/SDD
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 647 625 79.73 2.79 0.29 0.44
2 A1 315 304 0.01 13.33 0.12 0.21
3 A1 198 191 0.11 9.77 0.38 0.55
4 A1 116 112 0.28 7.48 0.71 0.83
5 A2 154 148 0.00 6.26 0.75 0.86
6 B1 621 600 93.52 0.36 0.75 0.86
7 B1 188 182 0.25 7.98 0.75 0.86
8 B2 650 628 64.09 4.08 0.75 0.86
9 B2 227 219 0.38 9.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1558.1 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1504.1 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 MP2/SDD
ABC
0.03548 0.01662 0.01448

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.635
Cl2 0.000 1.526 1.762
Cl3 0.000 -1.526 1.762
I4 1.832 0.000 -0.601
I5 -1.832 0.000 -0.601

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.89671.89672.21012.2101
Cl21.89673.05133.35693.3569
Cl31.89673.05133.35693.3569
I42.21013.35693.35693.6636
I52.21013.35693.35693.6636

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 107.098 Cl2 C1 I4 109.415
Cl2 C1 I5 109.415 Cl3 C1 I4 109.415
Cl3 C1 I5 109.415 I4 C1 I5 111.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability