一种基于苯基噌啉类铱配合物的新型汞离子探针

A new Hg^(2+) probe based on a cylcometalated Ir(Ⅲ) complex of phenylcinnoline derivative

以3,4-二苯基噌啉为环金属配体,6,7-二氰基二吡啶并喹喔啉为解离配体合成了一种新型环金属铱配合物。配合物的结构通过红外、质谱、核磁进行了表征。配合物的最大发射波长为603 nm,磷光寿命为1.17μs。在与金属阳离子的作用中,该配合物表现出了对Hg2+的选择性磷光淬灭性能,能作为Hg2+的磷光探针。

A novel cylcometalated Ir（ Ⅲ ） complex has been synthesized with cylcometalated ligand of 3,4-diphenylcinno- line and assistant ligand of 6,7-dicyanodipyridoquinoxaline. New complex of Ir was characterized by FT-IR, NMR and mass spectroscopies. The Ir complex showed a strong emission band centered at 603 nm with a lifetime of 1.17 μs. New Ir complex is a phosphorescent ＂ turn-off＂ probe for Hg^2＋ with high selectivity.