Synthesis and characterization of lead(II) complexes with substituted 2,2′-bipyridines, trifluoroacetate, and furoyltrifluoroacetonate

Abstract

Two substituted 2,2′-bipyridine lead(II) complexes, [Pb(5,5′-dm-2,2′-bpy)(tfac)2] n (1) (5,5′-dm-2,2′-bpy = 5,5′-dimethyl-2,2′-bipyridine and tfac = trifluoroacetate) and [Pb2(4,4′-dmo-2,2′-bpy)2(ftfa)4] (2) (4,4′-dmo-2,2′-bpy = 4,4′-dimethoxy-2,2′-bipyridine and ftfa = furoyltrifluoroacetonate), have been synthesized and characterized by elemental analysis, IR, 1H NMR, and 13C NMR spectroscopies, thermal behavior, and X-ray crystallography. Complexes 1 and 2 are 1D coordination polymer and dinuclear complex, respectively. The supramolecular features in these complexes are guided by weak directional intermolecular interactions.