Designing One-Dimensional Covalent Organic Frameworks: Novel Post-Synthetic Modification on Hydroxyl Groups and Ratiometric Detection of Chemical Warfare Agent Mimics

A post-synthetic modification based on substitution reaction of the hydroxyl group in COFs is utilized to construct a dual-emission hybrid material for real-time detection of 2-chloroethyl ethyl sulfide (2-CEES) and diethyl cyanophosphonate (DCNP), mimics of chemical warfare agents.