Cavity-directed nitroaromatics sensing within a carbazole-based luminescent supramolecular M2L3 cage  

作　　者：Tianchi Feng Xuezhao Li Jinguo Wu Cheng He Chunying Duan 

机构地区：[1]State Key Laboratory of Fine Chemicals,Dalian University of Technology

出　　处：《Chinese Chemical Letters》2020年第1期95-98,共4页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China (Nos.21861132004 and 21701019);China Postdoctoral Science Foundation (No.2018M630286)

摘　　要：The design and preparation of luminescent M2L3 metal-organic cage via the coordination-driven selfassembly of carbazole-based ligand with a V-shaped geometry is described.The cage Zn-L1 with an open cavity which equipped aromatic rich ligands shows the highest emission quenching efficiency towards picric acid than other nitroaromatic explosives.The quenching ability depended on whether there formed the host-guest molecules are well explored by electrospray ionization mass spectrometry(ESIMS),and isothermal titration microcalorimetry(ITC).The design and preparation of luminescent M2L3 metal-organic cage via the coordination-driven selfassembly of carbazole-based ligand with a V-shaped geometry is described.The cage Zn-L1 with an open cavity which equipped aromatic rich ligands shows the highest emission quenching efficiency towards picric acid than other nitroaromatic explosives.The quenching ability depended on whether there formed the host-guest molecules are well explored by electrospray ionization mass spectrometry（ESIMS）,and isothermal titration microcalorimetry（ITC）.

关 键 词：Metal-organic cage Host-guest recognition Picric acid Fluorescence 

分 类 号：O641.4[理学—物理化学]