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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: MP3/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/cc-pVTZ-PP
 hartrees
Energy at 0K-1547.182688
Energy at 298.15K 
HF Energy-1546.190763
Nuclear repulsion energy560.957734
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/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 757 757 82.42      
2 A1 364 364 0.03      
3 A1 214 214 0.06      
4 A1 115 115 0.06      
5 A2 160 160 0.00      
6 B1 681 681 62.99      
7 B1 199 199 0.22      
8 B2 790 790 77.34      
9 B2 235 235 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 1756.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1756.9 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/cc-pVTZ-PP
ABC
0.03897 0.01794 0.01559

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/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 1.443 1.685
Cl3 0.000 -1.443 1.685
I4 1.769 0.000 -0.578
I5 -1.769 0.000 -0.578

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.77121.77122.15712.1571
Cl21.77122.88573.21373.2137
Cl31.77122.88573.21373.2137
I42.15713.21373.21373.5376
I52.15713.21373.21373.5376

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.093 Cl2 C1 I4 109.392
Cl2 C1 I5 109.392 Cl3 C1 I4 109.392
Cl3 C1 I5 109.392 I4 C1 I5 110.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability