Dichlorobis(3,5-dimethylpyrazole-N-2)-methylphenyltin(IV)

The title compound, [SnCl2 (CH3)(C6H5)(C5H8N2)(2)], was obtained by reactio n of dichloromethylphenyltin(IV) and 3,5-dimethylpyrazole (dmpz) in chlorof orm, and was recrystallized from acetone. The structure consists of octahed ral all-trans [SnMePhCl2 (dmpz)(2)] molecules, with the Sn atom coordinated to two C [Sn-C 2.127 (5) and 2.135 (4) Angstrom], two Cl [Sn-Cl 2.5753 (8) Angstrom] and two N atoms [Sn-N 2.357 (3) Angstrom]. The dmpz ligands, bou nd to the metal through their unprotonated N atoms, form weak intra- and in termolecular hydrogen bonds with the Cl ligands via their NH groups, giving rise to a polymeric chain along the c axis.