Lanthanide-centered inorganic/organic hybrids from functionalized 2-pyrrolidinone-5-carboxylic acid bridge: Covalently bonded assembly and luminescence

A series organic-inorganic hybrid material with covalent bond have been prepared through the precursor (PDCA-Si) derived from 2-pyrrolidinone-5-carboxylic acid, which exhibits a self-organization under the coordination to RE3+ (Eu3+, Tb3+). Luminescence can be obtained for blue of PDCA-Si, green of Tb-PDCA-Si and red of Eu-PDCA-Si, respectively.