Two-semiconductive-component hybrid coordination polymers with controllable photo-induced electron-transfer properties†
Abstract
Two semiconductive inorganic–organic hybrid coordination polymers constructed from metal iodide clusters and naphthalene diimide semiconductive components, [Cu2I2(DPNDI)]n (1) and [PbI2(DPNDI)]n (2) (DPNDI = N,N′-di-(4-pyridyl)-1,4,5,8-naphthalene diimide), have been synthesized and characterized. Although possessing similar 2D heterostructures, hybrids 1–2 exhibited different photo-induced electron-transfer properties. Due to the higher HOMO energy level of the [Cu2I2]n chain than that of the [PbI2]n cluster, only hybrid 1 can easily undergo intramolecular electron transfer to form a long-lived charge separated state, which may be applied in artificial photosynthesis.