An ionic vinylene-linked three-dimensional covalent organic framework for selective and efficient trapping of ReO4 − or 99TcO4 −

Abstract

The synthesis of ionic olefin linked threedimensional covalent organic frameworks (3D COFs) is challenging because of the difficulties in forming stable carbon-carbon double bonds. Here, the authors report a general synthesis of an ionic sp2 carbon linked COFs and demonstrate selective capture of ReO4 − ions.