Fluorinated mercaptobenzothiazolates of lanthanides: Synthesis, structure and photoluminescence
作者:Vasily A. Ilichev、Lubov I. Blinova、Anton V. Rozhkov、Tatyana V. Balashova、Roman V. Rumyantcev、Georgy K. Fukin、Mikhail N. Bochkarev
DOI:10.1016/j.molstruc.2017.07.035
日期:2017.11
Abstract In search of new fully fluorinated ligands which effectively sensitized the lanthanide luminescence the 4,5,6,7-tetrafluoro-1,3-benzothiazol-2(3Н)-thione (HmbtF) was proposed. Based on this ligand a set of new complexes LnL3(THF)2 (Ln1) (Ln = Nd, Gd, Tb, Dy, Er, Yb) was synthesized and their luminescence were studied. The structure of the compounds was established with an example of Gd derivative
摘要 为了寻找有效敏化镧系元素发光的新型全氟化配体,提出了 4,5,6,7-四氟-1,3-苯并噻唑-2(3Н)-硫酮 (HmbtF)。基于该配体,合成了一组新的复合物 LnL3(THF)2 (Ln1)(Ln = Nd、Gd、Tb、Dy、Er、Yb)并研究了它们的发光。以Gd衍生物为例确定了化合物的结构。mbtF 的三重态能量被发现为 21500 cm-1,这使得共振能量转移到 Dy3+、Tb3+、Nd3+ 和 Er3+ 离子,并规定了一些配合物的金属中心发射。在 Yb1 的情况下,观察到的 Yb3+ 离子发光可能是由于非共振能量转移。