Assembly of Two Isostructural Metal-organic Frameworks Based on Hetero-N,O Donor Ligand for Detecting Nitro Explosives

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 762-766
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s40242-019-9099-0

摘要

Two isostructural metal-organic frameworks,[NO3][M3(H2O)3O(TBA)3]·2DMF·6H2O(1 and 2)[M=In and Fe,H2TBA=4-(1H-tetrazol-5-yl)-benzoic acid],have been successfully sy nthesized.Compounds 1 and 2 have three-dimensional structures bridged via the typical 6-connected tri-nuclear cluster units M3O(COO)6 and linear l inker H2TBA.The whole 3D framework possesses a 6-connected acs topology.Notably,by the fluorescence technique,compound 1 can detect nitro explosives through fluorescence quenching effect,especially for 2A,6-trinitrophenol(TNP,Ksv=3.64×104 L/mol).Furthermore,the fluorescence spectrum red shifts as the number of —NO2 group increases.Based on the aforementioned consideration,compound 1 can be considered as a potential luminescent probe for the detection of TNP.