The crystal structure of a novel Pt(II) complex with 2-hydroxy-6-methylpyridine (Hmhp), trans-[PtCl2(dmso)(Hmhp)]·H2O.

A novel platinum(II) complex with 2-hydroxy-6-methylpyridine (Hmhp), trans-[PtCl2(dmso)(Hmhp)]·H2O, crystallizes in the space group P 2 1/n with a = 11.5505(1) Å, b = 8.9467(1) Å, c = 14.6047(2) Å and β = 112.3919(6)°. Platinum ion is in the expected square-planar environment. The 2-hydroxy-6-methylpyridine ligand is coordinated to the metal ion in a monodentate manner via nitrogen. The plane of the aromatic ligand is nearly perpendicular to the platinum coordination plane. Pt(II) ion is shielded with pyridine ortho substituents above and below the square coordination plane of platinum. Hydrogen bonding between the complex molecules and the H2O molecules of crystallization produces infinite two-dimensional layers. Weak intermolecular interactions of the C-H···Cl type link the layers into a three-dimensional structure.