A new 3-D two-fold interpenetrated framework with sqp net based on Cu6I6 and Cu8I8 cluster nodes

With Cu6I6 and Cu8I8 clusters as 5-connected nodes, a new 3-D network [Cu14I14 (dabco)(5)(py)] (1) (dabco = 1,4-diazabicyclo[2.2.2] octane, py = pyridine) with a two-fold interpenetrated sqp-(4(4).6(6)) topology has been hydrothermally synthesized. The solid-state luminescence spectrum displays a strong yellow-light emission with lambda(max) = 591 nm at room temperature.