Lanthanide coordination polymers: Synthesis, diverse structure and luminescence properties
作者:Xue-Qin Song、Yao-Kun Lei、Xiao-Run Wang、Meng-Meng Zhao、Yun-Qiao Peng、Guo-Quan Cheng
DOI:10.1016/j.jssc.2014.06.025
日期:2014.10
and used as building blocks for constructing lanthanide coordination polymers with luminescent properties. The series of lanthanide nitrate complexes have been characterized by elemental analysis, IR spectroscopy, and X-ray diffraction analysis. The semirigid ligand L, as a bridging ligand, reacts with lanthanide nitrates forming three distinct structure types: chiral noninterpenetrated two-dimensional
合成了新的半刚性的外双齿配体,其结合有糠基水杨酰胺末端基团,即1,4-双[((2'-糠基氨基甲酰基)苯氧基]甲基} -2,5-双甲基苯(L),并用作构建镧系元素的基础具有发光性能的配位聚合物。该系列硝酸镧系元素络合物已通过元素分析,红外光谱和X射线衍射分析进行了表征。半刚性配体L作为桥连配体,与硝酸镧系元素反应形成三种不同的结构类型:手性非互穿的二维(2D)蜂窝状(6,3)(hcb,Schläfli符号6 3,顶点符号为6 6 6),拓扑结构为I型,一维锯齿形链为II型,一维梯形梯形链为III型。结构多样性表明,镧系元素的收缩效应在结构自组装过程中起着重要作用。详细讨论了Eu III,Tb III和Dy III配合物的发光性质。由于配体的最低三线态与镧系元素离子的共振能级之间的良好匹配,Eu III,Tb III和Dy III配合物中的镧系元素离子可以被配体有效地敏化。