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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: CCSD(T)=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 CCSD(T)=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-1547.369719
Energy at 298.15K 
HF Energy-1546.190742
Nuclear repulsion energy560.235398
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 CCSD(T)=FULL/cc-pVTZ-PP
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVTZ-PP
ABC
0.03884 0.01790 0.01556

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.662
Cl2 0.000 1.445 1.687
Cl3 0.000 -1.445 1.687
I4 1.770 0.000 -0.579
I5 -1.770 0.000 -0.579

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.77201.77202.16152.1615
Cl21.77202.89013.21813.2181
Cl31.77202.89013.21813.2181
I42.16153.21813.21813.5408
I52.16153.21813.21813.5408

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.268 Cl2 C1 I4 109.395
Cl2 C1 I5 109.395 Cl3 C1 I4 109.395
Cl3 C1 I5 109.395 I4 C1 I5 109.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability