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An Ideal Detector Composed of Two‐Dimensional Cd(II)–Triazole Frameworks for Nitro‐Compound Explosives and Potassium Dichromate
Author(s) -
Wang Ying,
Cheng Lin,
Liu ZhengYu,
Wang XiuGuang,
Ding Bo,
Yin Long,
Zhou BingBing,
Li MingShu,
Wang JiaXuan,
Zhao XiaoJun
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502167
Subject(s) - nitromethane , picric acid , nitrobenzene , ligand (biochemistry) , isophthalic acid , nitro , metal organic framework , chemistry , hydroxymethyl , crystallography , medicinal chemistry , inorganic chemistry , stereochemistry , organic chemistry , catalysis , biochemistry , alkyl , receptor , adsorption , polyester , terephthalic acid
The two‐dimensional (2D) metal–organic framework (MOF) [Cd(TPTZ)(H 2 O) 2 (HCOOH)(IPA) 2 ] n ( 1 ; TPTZ={4‐[4‐(1 H ‐1,2,4‐triazol‐1‐yl)phenyl]phenyl}‐1 H ‐1,2,4‐triazole, IPA=isophthalic acid) has been constructed with the π‐electron‐rich aromatic ligand TPTZ, auxiliary ligand IPA, and the metal Cd 2+ ion with a d 10 configuration under solvothermal conditions. Complex 1 exhibits a strong ligand‐originated photoluminescence emission, which is selectively sensitive toward electron‐deficient nitroaromatic compounds, such as nitrobenzene (NB), 1,3‐dinitrobenzene ( m ‐DNB), and 1,4‐dinitrobenzene ( p ‐DNB), and nitro‐aliphatic compounds, such as nitromethane (NM) and tris(hydroxymethyl)nitromethane. This property makes complex 1 a potential fluorescence sensor for these chemicals. Single‐crystal X‐ray diffraction studies revealed that dinuclear cadmium building units were further bridged by TPTZ ligands to give a four‐connected uninodal net with the Schläfli symbol of [4.6 3 .4.6 3 .6 2 .6 4 ].