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Authors: CARMEN COMSA, RICHARD A. VARGA, CRISTIAN SILVESTRU.
Reaction of MeSnCl3 with the β-ketimine OC(Me)CHC(Me)NH(C6H3iPr2-2’,6’)-4, in 1:1 and 1:2 molar ratio, gave the new methyltin(IV) trichloride adducts MeSnCl3[OC(Me)CHC(Me)NH(C6H3iPr2-2’,6’)-4]n [n = 1 (1), n = 2 (2)]. The compounds were characterized by multinuclear NMR studies in solution. The crystal and molecular structure of 1 and 2 was established by single-crystal X-ray diffraction. The crystals contain discrete molecules in which the β-ketimine ligand is coordinated to a metal center through its oxygen atom. This results in trigonal bypyramidal CSnCl3O and octahedral CSnCl3O2 cores in 1 and 2, respectively. In the crystals intermolecular Cl···H contacts result in supramolecular architectures.
Keywords: methyltin(IV), trichloride complexes, β-ketimine, solution NMR studies, single-crystal X-ray diffraction.
