pH stable cationic luminescence Metal−Organic framework material with nitrate guests as high selective sensor for detecting 2, 4, 6-trinitrophenol.

This work reports a new luminescent metal−organic framework Material {[Cd 3 (BPDPE) 3 (suc)(HCOO) 2 (H 2 O) 2 ·(NO 3) 2 } n (1), which was synthesized by 4,4-dipyridyldiphenyl ether (BPDPE) and succinic acid (suc) under solvothermal conditions. It is initially the 2D network constructed by succinic acid, and further connected by BPDPE forming 3D cationic framework with free nitrate anions. It is worthy noting that complex 1 exhibits excellent structural stability in the pH range of 2–12. The detection of NACs demonstrates that the complex could be acted as a functional probe material for sensing 2,4,6-trinitrophenol (TNP) with high sensitivity and selectivity, the detection limit (LOD) for TNP was up to 1.52 ​× ​10−7 ​M. Further more, the probable detect mechanisms were studied both experiments and calculations. A new 3 dimensional cationic luminescent framework material with free nitrate anions {[Cd 3 (BPDPE) 3 (suc)(HCOO) 2 (H 2 O) 2 ·(NO 3) 2 } n (1) was synthesized under solvothermal condition. Complex 1 exhibits excellent structural stability in the pH range of 2–12, it also can be acted as a functional probe for sensing 2,4,6-trinitrophenol (TNP) with high sensitivity and selectivity. Further more, the probable detect mechanisms were studied both experiments and calculations. Image 1 [ABSTRACT FROM AUTHOR]