Trichlorido(6-methyl-2,2′-bipyridine-κ2 N,N′)(dimethylsulfoxide-κO)indium(III)

In the title compound, [In(C11H10N2)Cl3(C2H6OS)], the InIII cation is six-coordinated in a distorted octahedral configuration by two N atoms from the chelating 6-methyl-2,2′-bipyridine ligand, one O atom from a dimethylsulfoxide group and three Cl− anions. Weak intermolecular C—H⋯O and C—H⋯Cl hydrogen bonds and intramolecular C—H⋯Cl hydrogen bonds are present in the structure.

In the title compound, [In(C 11 H 10 N 2 )Cl 3 (C 2 H 6 OS)], the In III cation is six-coordinated in a distorted octahedral configuration by two N atoms from the chelating 6-methyl-2,2 0bipyridine ligand, one O atom from a dimethylsulfoxide group and three Cl À anions. Weak intermolecular C-HÁ Á ÁO and C-HÁ Á ÁCl hydrogen bonds and intramolecular C-HÁ Á ÁCl hydrogen bonds are present in the structure.
In the title compound, (Fig. 1), the In III atom is six-coordinated in a distorted octahedral configuration by two N atoms from the chelating 6-methyl-2,2′-bipyridine ligand, one O atom from a dimethyl sulfoxide and three Cl atoms. The In-Cl, In-N and In-O bond lengths and angles are collected in Table 1. In the crystal structure, intermolecular C-H···O and C-H···Cl hydrogen bonds and π-π contact (Table 2 & Fig. 2) between the pyridine rings, Cg3-Cg3 i [symmetry cods: (i) -X,2-Y,-Z, where Cg3 is centroid of the ring (N2/C6-C10)] may stabilize the structure, with centroid-centroid distance 3.774 (2) Å.
The suitable crystals for X-ray diffraction experiment were obtained by methanol diffusion to a colorless solution in DMSO. Suitable crystals were isolated after one week (yield; 0.56 g, 72.3%).

Refinement
All H atoms were positioned geometrically with C-H = 0.93 and 0.96 Å and constrained to ride on their parent atoms with U iso (H) = 1.5U eq (C) for methyl H atoms and 1.2U eq (C) for the others.

Figure 1
The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.   Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > σ(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.