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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-1547.311969
Energy at 298.15K 
HF Energy-1546.190747
Nuclear repulsion energy562.223851
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 MP3=FULL/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 761 761 80.20      
2 A1 366 366 0.02      
3 A1 215 215 0.06      
4 A1 115 115 0.06      
5 A2 161 161 0.00      
6 B1 682 682 60.51      
7 B1 200 200 0.22      
8 B2 797 797 75.52      
9 B2 236 236 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 1766.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1766.2 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 MP3=FULL/cc-pVTZ-PP
ABC
0.03916 0.01801 0.01566

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.657
Cl2 0.000 1.439 1.681
Cl3 0.000 -1.439 1.681
I4 1.765 0.000 -0.576
I5 -1.765 0.000 -0.576

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.76601.76602.15352.1535
Cl21.76602.87843.20633.2063
Cl31.76602.87843.20633.2063
I42.15353.20633.20633.5307
I52.15353.20633.20633.5307

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.165 Cl2 C1 I4 109.384
Cl2 C1 I5 109.384 Cl3 C1 I4 109.384
Cl3 C1 I5 109.384 I4 C1 I5 110.124
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability