Abstract
AbstractThe reactions of the new nitrilotriacetic acid N′,N′,N′‐tri(salicyloyl)trihydrazide (Ntash) with the corresponding metal salts gave four new complexes [Pb4(bshz)2]·2DMF (1), [Co2(bshz)(C5H5N)6]·2ClO4·(C5H5N)·2H2O (2), [Cu3(fshz)2(C5H5N)2] (3), and [Zn3(fshz)2(C5H5N)3]n·2DMF (4), in which two multidentate ligands, namely N,N′‐disalicyloylhydrazine (H4bshz) and N‐formylsalicylhydrazide (H3fshz) were generated in situ from Ntash. The structures of these complexes were determined by single‐crystal X‐ray diffraction analysis. Complex 1 presents a novel tetranuclear lead(II) cluster structure with the four lead(II) cations in “hemidirected” coordination spheres. The neighboring tetranuclear clusters of 1 are connected by DMF molecules through weak Pb–O bonds, forming one‐dimensional ribbons. Complexes 2 and 3 show dinuclear and linear trinuclear structures with the corresponding CoIII and CuII ions in distorted octahedral and square‐planar coordination environments, respectively. Complex 4 exhibits a one‐dimensional zigzag chain structure. The magnetic properties of 3 and the photoluminescent properties of 4 were also investigated.
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