A flexible tripodal ligand linking octametallic terbium rings into luminescent polymeric chains

摘要

Six bidentate building blocks have been used to form a tripodal ligand with a flexible C_3 symmetric spacer to direct the assembly of large octametallic clusters covalently linked to form a 1-D highly luminescent terbium tube-like polymer.rnInfinite metal-organic frameworks containing lanthanide ions are attracting increasing attention due to their fascinating structural topologies and the variety of potential technological applications. In particular, the attractive light-emitting properties (characteristic sharp emission, long lifetime, large Stokes shift) of 4f elements make lanthanide-based coordination polymers particularly suitable for the development of optical devices and sensors.