Synthesis of different copper iodide/sulfide clusters via regulating the amount of ligand added

Abstract

Abstract Here, we successfully reported two copper iodide/sulfide clusters, Cu6S2I4(C5NS)4 (CIS-1) and Cu6(C5NS)4(CN)2 (CS-2), via changing the amount of ligand (C5H5NS) to regulate its decomposing degree. Interestingly, in CIS-1, 4-pyridinethiol only acted as sulfur source, not as linker between clusters. Oppositely, in another open framework CS-2 containing 4-pyridinethiol, the coordinating capability of N/S from ligand was taken full advantage to connect surrounding clusters via Cu–N and Cu–S bond. UV–vis diffuse reflectance spectroscopy and photocurrent response were performed to research the photoelectric properties about these compounds, whose results demonstrate these hybrid materials belong to semiconductor. That makes them expected as potential semiconducting materials to apply in photoelectric devices.