A Unique Mixed-Valence Cu super(II)/Cu super(I) Organic-Inorganic Hybrid Supramolecular Cluster: Syntheses, Crystal Structure, Luminescence and 2,4,6-Trinitrophenol Sensing Properties

A unique mixed-valence Cu super(II)/Cu super(I) organic-inorganic hybrid supramolecular cluster {[Cu(DMSO) sub(5)][Cu sub(4)I sub(6)(DMSO)]} sub(n (1) has been achieved in the presence of CuI under the acid condition, and characterized by X-ray single and powder crystal diffractions, elemental analysis, IR, UV-vis, thermogravimetric analysis. 1 has an unusual five DMSO coordinated bivalent copper cation [Cu(DMSO)) sub(5) super(2+); while the anionic architecture of 1 exhibits a 1-D wavelike Cu super(I) iodide hybrid cluster chain, constructed by [Cu sub(4)I sub(6)(DMSO)] super(2-) repeated cluster units linking each other through shared mu sub(2)-I and mu sub(3)-I atoms. The solvent-coordinated cations interact with the 1-D anionic cluster chains to form a 3-D supramolecular framework through hydrogen bonds. Moreover, the luminescence and 2,4,6-trinitrophenol (TNP) sensing properties of 1 were explored in 2-propanol suspension, which revealed that 1 exhibits highly sensitive for TNP detection through energy transfer process.