Binuclear and polymeric manganese(II) salicylate complexes: synthesis, crystal structure and catalytic activity of [Mn2(Hsal)4(H2O)4] and [{Mn2(sal)2(Hsal)(H2O)-(H3O)(py)4·2py}n](H2sal = salicylic acid, py = pyridine)

Abstract

The two air-stable manganese(II) salicylate complexes [Mn₂(Hsal)₄(H₂O)₄]1 and polymeric [{Mn₂(sal)₂(Hsal)(H₂O)(H₃O)(py)₄·2py}_n]2(H₂sal = salicylic acid and py = pyridine) have been synthesised easily, and their crystal structures determined. Both contain unsymmetrically bridging salicylate ligands. In the presence of added pyridine 1 and 2 vigorously catalyse the disproportionation of H₂O₂.