A Chromo-Fluorogenic Tetrazole-Based CoBr₂ Coordination Polymer Gel as a Highly Sensitive and Selective Chemosensor for Volatile Gases Containing Chloride

摘要

Catching chloride: A tetrazole-based ligand without long alkyl chains is used to form a coordination polymer gel with CoBr₂ (1). Gel 1 has a spherical structure with a 20–30 nm diameter. More interestingly, gel 1 selectively recognizes toxic gases, such as HCl, SOCl₂, (COCl)₂, and COCl₂ that contain chloride atoms.