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

Publication date: Available online 22 April 2019Source: Chinese Chemical LettersAuthor(s): Tianchi Feng, Xuezhao Li, Jinguo Wu, Cheng He, Chunying DuanAbstractThe design and preparation of luminescent M2L3 metal-organic cage via the coordination-driven self-assembly 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 (ESI-MS), isothermal titration microcalorimetry (ITC).Graphical AbstractSelf-assembly of luminescent M2L3 metal-organic cage by V-shaped carbazole-based ligands is described. The higher emission quenching efficiency towards picric acid than other nitroaromatic explosives depending on whether there formed the host-guest molecules are well explored.
Source: Chinese Chemical Letters - Category: Chemistry Source Type: research