Synthesis, crystal structures and luminescent properties of tetranuclear Zn molecular clusters with aroylhydrazone ligand

Abstract

Two kinds of tetranuclear Zn(II) molecular clusters with the designed aroylhydrazone Schiff base ligand (H3333L), [Zn4(HL)4]·3(DMF)·3(H2O) (1) and [Zn4(HL)2(CH3COO)4]·2(DMF)·2(CH3OH) (2), have been synthesized and studied. Molecular cluster 1 displayed a Zn4O4 boat-shaped core and 2 presented a discrete linear tetranuclear Zn(II) structure. The luminescent properties of the two molecular clusters have been investigated, which exhibit a wide range of photo-luminescence in different organic solvents.