Wei Chen , Xiangyang Li , Wei Yao , Vladimir P. Fedin , Enjun Gao
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引用次数: 0
Abstract
The escalating development of the national industry has led to a growing apprehension regarding water pollution. Therefore, there is an urgent need to develop a rapid, convenient, and highly sensitive method for detecting water pollutants. In this study, we successfully prepared a novel Keggin-type polyacid hybrid material with zero-dimensional structure [Zn2(C10H6NO2)2(C10H7NO2)4][ZnCl(C10H7NO2)3]2[HPMo12O40]2 (1) through steam heating using 2,3-quinoline dicarboxylic acid, phosphomolybdic acid and Zn(NO3)2 along as precursors. However, it was observed that 2,3-quinoline dicarboxylic acid (H2L = C11H7NO4) loses a carboxyl group from a new quinoline-3-carboxylic acid ligand (HL1 = C10H7NO2) during the synthesis process of 1. Our investigations have revealed two distinct forms for Zn2+, form A involves coordination with one Zn ion, three ligands and one chloride ion while form B forms a binuclear cluster [Zn2(C10H6NO2)2(C10H7NO2)4]2+ by coordinating with two L1−1 and four HL1 ligands. These structures are further extended into 3D supramolecular architectures via π-π packing between one-dimensional chains formed by connecting the Keggin-type polyoxometalates through multiple hydrogen bonds. Additionally, we explore the fluorescence and electrochemical properties of compound 1. These results demonstrate its exceptional selectivity and high sensitivity towards Fe3+, HPO42− and CrO42− as a fluorescence probe and excellent electrochemical activity towards NaNO2. Furthermore, the reaction mechanism was thoroughly examined.
期刊介绍：
Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry.
Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.
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