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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP4/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 MP4/cc-pVTZ-PP
 hartrees
Energy at 0K-1547.248230
Energy at 298.15K 
HF Energy-1546.190478
Nuclear repulsion energy557.859633
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 MP4/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 711 711        
2 A1 348 348        
3 A1 206 206        
4 A1 111 111        
5 A2 154 154        
6 B1 637 637        
7 B1 193 193        
8 B2 746 746        
9 B2 228 228        

Unscaled Zero Point Vibrational Energy (zpe) 1665.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1665.8 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 MP4/cc-pVTZ-PP
ABC
0.03845 0.01779 0.01545

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.663
Cl2 0.000 1.453 1.695
Cl3 0.000 -1.453 1.695
I4 1.775 0.000 -0.581
I5 -1.775 0.000 -0.581

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.78271.78272.16802.1680
Cl21.78272.90623.23233.2323
Cl31.78272.90623.23233.2323
I42.16803.23233.23233.5510
I52.16803.23233.23233.5510

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.195 Cl2 C1 I4 109.416
Cl2 C1 I5 109.416 Cl3 C1 I4 109.416
Cl3 C1 I5 109.416 I4 C1 I5 109.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability