Nature Communications (Jul 2018)
Facile transformation of imine covalent organic frameworks into ultrastable crystalline porous aromatic frameworks
Abstract
Despite recent success in developing new covalent organic frameworks (COFs) materials, synthesis of chemically stable COFs still remains challenging. Here the authors demonstrate a facile strategy that transforms imine-linked COFs into robust porous aromatic frameworks by kinetically fixing the reversible imine linkage via an aza-Diels-Alder cycloaddition reaction.