Self-assembly in dinuclear, cyclic homotetranuclear and cyclic heterotetranuclear complexes with a picolylhydrazone ligand |
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| Authors: | Dan Wang Shi-Xiong Liu |
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| Institution: | aDepartment of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China |
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| Abstract: | Reactions among Cu(ClO4)2 · 6H2O, Cu(acac)2/VO(acac)2 and 3-methoxysalicylaldehyde Picoloylhydrazone in different solvents give three complexes, Cu2L(acac)(H2O)2]ClO4 (1), Cu4L2(acac)2(py)2](ClO4)2 (2) and (VO2)2L2Cu2(acac)2 (3) (acac = acetyl acetonate and py = pyridine). There is an extended 2D structure in complex 1 constructed by hydrogen bonds between the binuclear complex cation and the ClO4? anion, and an extended 1D structure in complex 2 constructed by weak π π stacking interactions between neighboring cyclic tetranuclear complex molecules. Complex 3 is the first oxovanadium–copper complex with a bridging oxo oxygen atom between the V atom and the Cu atom. The solid-state photoluminescent properties of the three title complexes have been studied. There is an antiferromagnetic interaction in 1. |
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| Keywords: | Copper Dioxovanadium (V) Polynuclear complex Crystal structure Photoluminescent |
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