Fluorescent Cadmium Bipillared-Layer Open Frameworks: Synthesis, Structures, Sensing of Nitro Compounds, and Capture of Volatile Iodine
作者:Tang-Ching Chen、Meng-Jung Tsai、Jing-Yun Wu
DOI:10.1002/chem.201804673
日期:2019.1.24
metal–organic frameworks (MOFs), [Cd2(dicarboxylate)2(NI‐bpy‐44)2] (dicarboxylate=benzene‐1,4‐dicarboxylate (1,4‐bdc, 1), 2‐bromobenzene‐1,4‐dicarboxylate (Br‐1,4‐bdc, 2), 2‐nitrobenzene‐1,4‐dicarboxylate (NO2‐1,4‐bdc, 3), biphenyl‐4,4′‐dicarboxylate (bpdc, 4); NI‐bpy‐44=N‐(pyridin‐4‐yl)‐4‐(pyridin‐4‐yl)‐1,8‐naphthalimide)), featuring non‐ and twofold interpenetrating pcu‐type bipillared‐layer open structures
荧光Cd金属-有机骨架(MOF),[Cd 2(二羧酸)2(NI-bpy-44)2 ](二羧酸=苯-1,4-二羧酸(1,4-bdc,1),2-溴苯-1,4-二羧酸酯(BR-1,4-BDC,2),2-硝基苯-1,4-二羧酸酯(NO 2 -1,4- BDC,3),联苯基-4,4'-二羧酸酯(BPDC,4); NI-bpy-44 = N-(吡啶-4-基)-4-(吡啶-4-基)-1,8-萘二甲酰亚胺)),具有非穿透和双重互穿的pcu型双毛层开放式水(溶剂)热合成了分别具有58.4%,51.4%,51.5%和41.4%的足够自由孔隙的结构。MOF 1 –4种在447±7 nm处发出的固态蓝色或青绿色荧光发射,主要是由NI-bpy-44引起的,并且取决于所结合的溶剂。浸渍晶体样品在不同溶剂中,也就是后,H 2 O和DMSO(1和2),以及硝基苯和苯酚(1 - 4),它们表现出显着的荧光淬灭效应,而ö二甲