fluorescence stability in the pH range of 2–13 in an aqueous solution. It was found that compound 1 could not only detect trivalent Fe3+, Cr3+ and Al3+ ions with high selectivity and recyclability but also serve as an excellent selective sensing material for PO43− ions among some anions. The detection of NACs demonstrated that compound 1 could also behave as a functional probe with high selectivity
基于混合
配体4-(
吡啶-3-基氧基)-
邻苯二甲酸(H)的发光Eu-MOF,即[Eu 2(ppda)2(npdc)(H 2 O)]·H 2 O(1)在溶剂热条件下合成了2 ppda)和
萘1,,4-二
羧酸(H 2 npdc)。化合物1最初是由[Ln(npdc)] 2的1D双核链构建的,并进一步通过ppda 2-
配体连接,形成2D分层结构。值得注意的是,化合物1在
水溶液的2-13的pH范围内表现出出色的荧光稳定性。发现化合物1不仅可以高选择性和可回收性检测三价Fe 3+,Cr 3+和Al 3+离子,而且还可以作为某些阴离子中PO 4 3-离子的优秀选择性传感材料。
NAC的检测表明,化合物1还可以作为具有高选择性,灵敏度和可回收性的功能探针使用,
TNP的检测限为2.97×10 -6M。此外,推测了不同分析物的发光传感机理。