Tris(μ₄-azepane-1-carbodithioato)bis(μ₃-azepane-1-carbodithioato)-μ₉-bromido-tetra-μ₂-bromido-octacopper(I)copper(II)

Acta Cryst. (2013). E69, m275-m276 (http://doi.org/mvb)

There is much interest in the design and synthesis of this kind of compound; in particular, the establishment of a rational synthetic method for mixed-valence metal clusters is important in developing the chemistry of functional materials, because these complexes have potential applications as new opto-electronic materials based on carrier-transport properties, valence fluctuations and intervalence charge-transfer transitions. In this paper, a new mixed-valence nonanuclear Cu(I)/Cu(II) cluster, [Cu^I₈Cu^IIBr₅(Hm-dtc)₅] (Hm-dtc^- = azepane-1-carbodithioic acid) with a dithiocarbamate derivative, has been synthesized and structurally characterized.