An Au(Ⅰ)-based coordination/hydrogen-bond hybrid open framework for luminescence sensing of temperature and benzene  

一例可用于温度和苯荧光传感的Au(Ⅰ)配位/氢键杂化多孔框架

作　　者：Hao-Yu Wang Jia-Wen Ye Xue-Wen Zhang Chao Wang Duo-Yu Lin Dong-Dong Zhou Jie-Peng Zhang 王好雨;叶嘉文;张学文;王超;林铎谕;周东东;张杰鹏(Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry,School of Chemistry,Sun Yat-Sen University,Guangzhou 510275,China;School of Biotechnology and Health Sciences,Wuyi University,Jiangmen 529000,China)

机构地区：[1]Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry,School of Chemistry,Sun Yat-Sen University,Guangzhou 510275,China [2]School of Biotechnology and Health Sciences,Wuyi University,Jiangmen 529000,China

出　　处：《Science Bulletin》2022年第12期1229-1232,M0003,共5页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(21731007,22090061,21821003,and 22071272);the Guangdong Pearl River Talents Program(2017BT01C161);the Fundamental Research Funds for the Central Universities,Sun Yat-Sen University(22lgqb20)。

摘　　要：Molecule-based porous materials sustained by coordination and/or covalent bonds have been extensively investigated[1,2].Hydrogen bonds and weaker supramolecular interactions can also serve as the links for porous frameworks,but successful examples showing permanent porosity and especially high stability are still rare[3,4].Cooperation of multiple weak interactions is the most effective strategy to enhance the stability of porous molecular crystals[5].受Au(Ⅰ)配合物有趣发光特性的启发,本文构筑了首例Au(Ⅰ)基多孔框架材料[Au_(3)(Hbpz)_(3)]·guest(MAF-98·g,H_(2)bpz=3,3′,5,5′-四甲基-4,4′-联吡唑),其中基于配位键的Au(Ⅰ)吡唑三聚体和基于氢键的吡唑三聚体通过二连接的Hbpz±连成(10,3)-b(ths)配位/氢键杂化网络.该结构存在二重穿插,但仍保留了孔径为4.8~6.6?和孔洞率为30.9%的一维“之”形孔道,可用N_(2)和CO_(2)吸附等温线证实.MAF-98具有强的疏水性,且在pH 2~14的水中稳定.更重要的是,MAF-98表现出显著的发光热致变色行为,在220~320 K具有超高的灵敏度(64%K^(-1))和良好的线性.而且,相比于其他芳烃和有机溶剂,MAF-98对苯具有特别高的主客体识别作用并带来极高的发光淬灭效率(99%),可用于环己烷和环己烯中苯的定量检测.

关 键 词：Au(Ⅰ) 主客体识别 荧光传感 吸附等温线 配位键 环己烯 热致变色 孔洞率 

分 类 号：O657.3[理学—分析化学] O641.4[理学—化学]