Abstract
Three new silver-chalcogenide clusters protected by naphthyl ligands are described in this work, namely [Ag-14(SCH2C10H7)(6)(CF3COO)(8)(DMAc)(6)] (1), [Ag-30(SCH2C10H7)(18)(CrO4)(2)(DMAc)(2) (CF3COO)(8)] (DMAc = dimethylacetamide) (2) and {Ag-12(SCH2C10H7)(6)(CF3COO)(4)(CH3CN)(6)(Cr2O7)}(n) (3). Their crystal structures were studied by X-ray crystallography, and they show hollow-core-shell (1), template-core-shell (2) and 1D infinite (3) structures, respectively. The luminescence properties of cluster 1 were investigated, which showed interesting thermochromic variation from red to bright yellow. Moreover, the chromate ions were proven to act as templates in forming the silver clusters through a series of experiments to prepare compounds 2 and 3, which could be considered as derivatives of cluster 1.