Abstract
On the interaction of naphthyl thiourea with palladium(II) chloride in methanol a penta-coordinate complex, [Pd(Ntu) 4Cl]Cl, was obtained. On further coordination of this species with 2,2′-dipyridyl, o-phenanthroline, pyridine, α, β and γ-picolines, 2–4 and 2–6 lutidines, quinoline, isoquinoline and acridine mixed ligand penta-coordinate complexes of the type [Pd(Ntu) 2 LCl]Cl and [Pd(Ntu) 2 L′ 2Cl]Cl (where L stands for 2,2′-dipyridyl and o-phenanthroline and L′ for pyridine, α, β and γ-picolines, 2–4 and 2–6 lutidines, quinoline, isoquinoline and acridine) were obtained. I.R. studies indicate that the coordination in mixed ligand complexes has taken place through the sulphur of naphthyl thiourea and nitrogen of the heterocyclic amines. The simple naphthyl thiourea complex, [Pd(NtU) 4Cl]Cl, shows the presence of sulphur-metal bond. The electrical conductance of all the above complexes in methyl alcohol indicates uni-univalent electrolytes.
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