Selective sensing of dihydrogen phosphate anion by a fluorescent tetranuclear pentacoordinated zinc(ii) complex
作者:Zhanfen Chen、Xiaoyong Wang、Jingwen Chen、Xiaoliang Yang、Yizhi Li、Zijian Guo
DOI:10.1039/b616451j
日期:——
has been synthesized and characterized. The coordination of ZnII ions with L gives a novel tetranuclear complex, [ZnII4(L−3H)2](ClO4)2·3.5H2O (I), which crystallizes in a triclinic system with space group P, a = 12.261(5) Å, b = 13.887(6) Å, c = 20.738(8) Å, α = 89.996(7)°, β = 88.163(7)° and γ = 85.016(7)°. The cationic core of I is formed by four ZnII cations bridged by two cresolic and four phenolic
甲酚氧桥联 配体, 2,6-双[((2-羟基苄基)(2-羟乙基)氨基]甲基} -4-甲基苯酚(L),已经合成并表征。Zn II离子与L的配位产生一种新的四核络合物[Zn II 4(L -3H)2 ](ClO 4)2 ·3.5H 2 O(I),该晶体在空间群为P的三斜晶系中结晶,a = 12.261(5)Å,b = 13.887(6)Å,c = 20.738(8)Å,α = 89.996(7)°,β = 88.163(7)°和γ = 85.016(7)°。I的阳离子核由四个Zn形成由两个甲酚和四个酚氧原子桥接的II型阳离子配体。所有四个Zn II中心都是五坐标的,并采用了扭曲的方锥几何形状。能源管理系统 和 1 H NMR数据表明,我是稳定在溶液中,将荧光测量表明,它具有强的荧光λ EX = 298纳米。荧光配合物可以选择性地检测磷酸二氢根中的阴离子甲醇,并且可以通过紫外可见吸收变化和