基于四唑功能位点的Tb3+配位聚合物的构筑及其金属离子荧光检测性能

doi:10.11944/j.issn.1000-0518.2017.09.170188

摘要/Abstract

摘要：

镧系金属配位聚合物因其独特的组成、结构和性质被广泛应用于荧光识别检测性质研究,但其功能导向构筑依然具有挑战性。本文基于双功能基团配体构筑策略构筑了一例Tb³⁺配位聚合物[Tb(TZI)(DMF)₂(H₂O)]·(H₂O)(1)((H₃TZI=5-(1-氢-5-四唑基)间苯二甲酸,DMF=N,N-二甲基甲酰胺)),在对其进行详细结构表征的基础上研究了其金属离子识别检测性质。结果表明,基于羧酸和四唑基团与Tb³⁺离子配位能力的不同,在确保Tb³⁺配位聚合物成功构筑的同时可将四唑作为识别位点引入配位聚合物框架,使得配合物1可展现出基于金属离子与四唑功能位点配位导致的荧光增强,可实现对Zn²⁺和Na⁺离子的识别检测。本文所报道的结果可为镧系金属配位聚合物的荧光识别检测性质导向构筑提供有价值的参考。

关键词: 配位聚合物, 镧系金属, 构筑, 荧光检测

Abstract:

Lanthanide coordination polymers have been widely investigated in fluorescent sensing owing to their characters in component, structure, and properties. However, the functional targeted construction of lanthanide coordination polymers is still a challenge. Herein, we report the construction, characterization, and properties investigation of a new Tb³⁺ coordination polymer, namely [Tb(TZI)(DMF)₂(H₂O)]·(H₂O)(1)(H₃TZI=5-(1H-tetrazol-5-yl)isophthalic acid and DMF=N,N-dimethylmethanamide). Utilizing the distinct affinities between Tb³⁺ ion and carboxylate/tetrazole groups, the construction of coordination polymer is well achieved, while the tetrazole group has been introduced into the framework of coordination polymer as sensing sites. As a result, complex 1 reveals ions dependent emissions enhancement owing to the coordination between the ions and the tetrazole sites, which could be utilized for the sensing of Zn²⁺ and Na⁺ ions. These results could be instructive for the fluorescent sensing function targeted construction of lanthanide coordination polymers.

Key words: coordination polymer, lanthanide metals, construction, fluorescent sensing

李娜, 常泽, 卜显和. 基于四唑功能位点的Tb³⁺配位聚合物的构筑及其金属离子荧光检测性能[J]. 应用化学, 2017, 34(9): 1046-1051.

LI Na, CHANG Ze, BU Xianhe. A Tb³⁺ Coordination Polymer with Tetrazol Functional Sites:Construction and Fluorescent Sensing Property Toward Metal Ions[J]. Chinese Journal of Applied Chemistry, 2017, 34(9): 1046-1051.

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基于四唑功能位点的Tb³⁺配位聚合物的构筑及其金属离子荧光检测性能

A Tb³⁺ Coordination Polymer with Tetrazol Functional Sites:Construction and Fluorescent Sensing Property Toward Metal Ions

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