Topochemical cross-linking of diacetylene in a highly interpenetrated three-dimensional covalent organic framework

Abstract

Topochemical polymerization is a highly promising and effective method for constructing complex three-dimensional structures and functionalized polymers. Herein, we presented for the first time the topochemical reaction of diacetylene within a meticulously designed covalent organic framework (ZNUC-1). Our experimental results revealed that ZNUC-1 underwent a 1,4-addition reaction under thermal induction, and forming an ene-yne-conjugated structure.