Chiral Coordination Assembly-Induced Phosphorescent Frameworks for Circularly Polarized Phosphorescence

Abstract

Achieving circularly polarized luminescence (CPL) with room-temperature phosphorescence (RTP) is a significant but challenging issue. Here, a simple method for preparing circularly polarized phosphorescent (CPP) materials is adopted through the chiral coordination assembly. One enantiomeric pair of chiral coordination polymers (DCF-13 and LCF-13) is synthesized by introducing a phosphorescent linker. DCF-13 and LCF-13 with RTP lifetimes of 132.45 and 137.36 ms can emit CPP with g lum values of −5.0 × 10 −3 and +5.0 × 10 −3 at 450 nm. This work provides a perspective for constructing CPP materials.

Host–Guest Metal–Organic Frameworks-Based Long-Afterglow Luminescence Materials

“…Metal-Organic frameworks (MOFs) as a class of inorganic-organic coordination hybrid materials, have micro/nanosized structures connected with metal ions or clusters through organic ligands [35]. As organic-inorganic hybrid materials, MOFs can provide luminescence in groups, and charge transfer between metals and ligands can cause a specific luminescence [36,37]. Compared with only inorganic and organic long-afterglow materials, MOFs are emerging as room-temperature phosphorescence (RTP) materials because of their intrinsic structure features [38]; for example, high-crystalline frameworks [39], various metal cluster units [40], strong coordination interactions between metal and organic ligands [41] and the controllable formation of dense frameworks [42].…”