Synthesis, structure, and luminescent property of the first mixed-valence Cu-halide complex constructed from novel D6R Cu6Cl6 cores

In this article, a Cu(I)-halide complex [Cu(II)Cu(I)3(1,10′-phen)Cl5]n (1) has been synthesized under hydrothermal reaction condition. Complex 1 is a three-dimensional supramolecular network composed by one-dimensional chains. To our interest, in the chain, there exists Cu6Cl6 building unit, which is seldom found in Cu(I)-halide complex. Furthermore, the Cu6Cl6 building unit is extended by Cu(II)(1,10′-phen)Cl2 unit. To our knowledge, this is the first mixed-valence Cu-halide complex composed from Cu6Cl6 building unit. Complex 1 exhibits strong luminescent property at room temperature.