title: Metal-chelate dye-controlled organization of Cd32S14(SPh)40(4-) nanoclusters into three-dimensional molecular and covalent open architecture.
abstract: Chalcogenide II-VI nanoclusters are usually prepared as isolated clusters and have defied numerous efforts to join them into covalent open-framework architecture with conventional templating methods such as protonated amines or inorganic cations commonly used to direct the formation of porous frameworks. Herein, we report the first templated synthesis of II-VI covalent superlattices from large II-VI tetrahedral clusters (i.e., [Cd32S14(SPh)38]2-). Our method takes advantage of low charge density of metal-chelate dyes that is a unique match with three-dimensional II-VI semiconductor frameworks in charge density, surface hydrophilicity-hydrophobicity, and spatial organization. In addition, metal-chelate dyes also serve to tune the optical properties of resulting dye semiconductor composite materials.
authors.affiliation: Department of Chemistry, University of California, Riverside, California 92521, USA.
authors.forename: Nanfeng
authors.initials: N
authors.lastname: Zheng
authors.forename: Haiwei
authors.initials: H
authors.lastname: Lu
authors.forename: Xianhui
authors.initials: X
authors.lastname: Bu
authors.forename: Pingyun
authors.initials: P
authors.lastname: Feng