A glycine ligand coordinated hybrid complex constructed from hexanuclear copper clusters and octamolybdates

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Abstract

Self-assembly of the sodium molybdate, copper chloride and glycine in aqueous solution results in a novel compound, {[NaCu6(Gly)8(H2O)2][Mo8O26(GlyH)2(Cu(Gly)H2O)]2}{NaCu6(Gly)8(H2O)2}{Mo8O26(GlyH)2}·16H2O (1). Compound 1 contains a new unit of {[NaCu6(Gly)8(H2O)2][Mo8O26Cu(Gly)2]2}, in which the [Mo8O26Cu(Gly)2] polyoxometalate units are connected by the [NaCu6(Gly)8(H2O)2] hexanuclear copper cluster. The magnetic measurement of 1 shows that ferromagnetic coupling exists between the magnetic centers of the hexanuclear copper cluster.

Graphical abstract

A new POM/amino acid hybrid compound has been synthesized. The coordination complex contains a new unit of {[NaCu6(Gly)8(H2O)2][Mo8O26Cu(Gly)2]2}, in which two [Mo8O26Cu(Gly)2] polyoxometalate units are connected by the [NaCu6(Gly)8(H2O)2] hexanuclear copper cluster.

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Research highlights

► A novel compound contains hexanuclear copper cluster and octamolybdate cluster. ► The two types of clusters are combined by amino acid ligand. ► It is the first example of discrete structure with high-nuclear Na–Cu cluster as node.

Section snippets

Acknowledgment

This work was supported by the 973 key program of the MOST (2010CB933501), the National Natural Science Foundation of China (20821061, 20973173 and 91022008), the Chinese Academy of Sciences (KJCX2-YW-319), the Natural Science Foundation of Fujian Province (2007HZ0001-1, 2009HZ0004-1, 2009HZ0006-1, 2006J0183) and Fujian Provincial Key Laboratory of Nanomaterials.

Xiao-Yu Jiang, female, born in 1965, is an associate professor and majored in chemistry and materials science. She teaches in Fujian University of Technology, and has a concurrent post in Fuzhou University and Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China.

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    Xiao-Yu Jiang, female, born in 1965, is an associate professor and majored in chemistry and materials science. She teaches in Fujian University of Technology, and has a concurrent post in Fuzhou University and Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China.

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