文献类型：期刊文献

英文题名：Real-Time Monitoring of Dissolved Oxygen with Inherent Oxygen-Sensitive Centers in Metal-Organic Frameworks

作者：Yang, Jian[1];Wang, Zhe[1];Li, Yongsheng[1];Zhuang, Qixin[1];Gu, Jinlou[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2016

卷号：28

期号：8

起止页码：2652

外文期刊名：CHEMISTRY OF MATERIALS

收录：;EI(收录号：20162102418892);WOS:【SCI-EXPANDED(收录号:WOS:000375244500022)】；

基金：This work was financially supported by the Natural Science Foundation of China (Grants 51072053 and 51372084), the Innovation Program of Shanghai Municipal Education Commission (13zz040), the Nano-Special Foundation for Shanghai Committee of Science and Technology (12 nm0502600), and the 111 Project (Grant B14018).

语种：英文

外文关键词：Organometallics - Crystalline materials - Platinum compounds - Phosphorescence - Catalysis

摘要：Despite that they are regarded as the ideal sensory platform, there are still no reports on luminescent metal organic frameworks (LMOFs) for dissolved oxygen (DO) measurement. Here, we reported the rational construction of a platinum(II) porphyrinic LMOF, PCN-224(Pt), as an novel porous matrix for the phosphorescent DO sensing with commercially available Pt(II) meso-tetra(4-carboxyphenyl)porphyrin as the bridging struts, oxygen-sensitive centers, and luminescent reporters. The newly developed probe featured excellent tolerance to harsh chemical environments, excellent photostability as well as pH-independent luminescence, rationalizing its suitability for DO sensing. Thanks to the homogeneous and well-isolated arrangement of the oxygen-accessible sites in the porous network, PCN-224(Pt) exhibited reversible phosphorescent response and excellent linear Stem-Volmer quenching behavior toward DO. A real-time analysis of DO during the process of enzyme-catalytic reaction exemplified its potentials in industrial and biological applications with oxygen involved.