Self-Assembly Synthesis, Structural Features, and Photophysical Properties of Dilanthanide Complexes Derived from a Novel Amide Type Ligand: Energy Transfer from Tb(III) to Eu(III) in a Heterodinuclear Derivative
作者:Cunji Gao、Alexander M. Kirillov、Wei Dou、Xiaoliang Tang、Liangliang Liu、Xuhuan Yan、Yujie Xie、Peixian Zang、Weisheng Liu、Yu Tang
DOI:10.1021/ic402338q
日期:2014.1.21
beautifully populates Tb(III) emission (Φ = 52%), whereas the corresponding Eu(III) derivative 1 shows weak luminescence efficiency (Φ = 0.7%) because the triplet state of L has a poor match with 5D1 energy level of Eu(III). Furthermore, the photoluminescent properties of heterodinuclear complex 4 have been compared with those of the analogous homodinuclear compounds. The quantum yield and lifetime measurements
阿新的酰胺型配体苄基Ñ,Ñ N'-双[(2'- furfurylaminoformyl)苯氧基) -乙基] -胺(大号)已被设计和施加自组装代同双核镧系元素配位化合物[LN的2(μ 2 -L)2(NO 3)6(乙醇)2 ] [Ln为铕(1),TB(2)和Gd(3)]和一个异双核衍生物[EuTb(μ 2 -L)2(NO 3)6(乙醇)2 ](4)。所有配合物均已通过X射线单晶衍射分析进行了表征。它们是同构结构,在单斜空间群P 2 1 / c中结晶,并形成[2 + 2]矩形大环结构。化合物4是由酰胺型配体组装而成的[2 + 2]矩形大环杂双核EuTb络合物的第一个实例。在4,离散0D二聚体[EuTb(μ 2 -L)2(NO 3)6(乙醇)2]单元通过多个N–H··O氢键扩展成2D超分子网络,该网络在拓扑上被分类为具有sql [Shubnikov四边形平面网]拓扑的单节点4连接底层网络。三重态(