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A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
Synthesis and Characterization of Novel Photoactive Metal-Organic Frameworks for Fluorescence Sensing of Fe3
Jing Li1, Hongjiang Ren1, Yunhui Zhai1
1The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, Key Laboratory of Chemistry of New Material of Functional Inorganic Composites, School of Chemical Engineering, Xi'an University, Xi'an, Shaanxi, China.
Abstract:
Coordination polymers (CPs) have garnered attention for their versatile structures and applications in fluorescence sensing and photochromic materials. Addressing the need for sensitive and selective detection of Fe3+, a crucial ion in biological, environmental, and industrial systems, this study synthesized two novel CPs, [Zn (cmmb)(bpy)1/2] (CP1) and [Cd5(μ3-OH)2(cmmb)4] (CP2) [bpy = 4,4'-bipyridine], via hydrothermal reactions with 4-(carboxymethyl)-2-methoxybenzoic acid (H2cmmb). Structural analysis confirmed their frameworks, which facilitate strong host-guest interactions and electron transfer modulation. Both CPs exhibited excellent Fe3+ sensing capabilities, with fluorescence quenching constants of 4.922 × 104 M-1 (CP1) and 3.294 × 104 M-1 (CP2), outperforming their responses to other ions. These results underscore the potential of CP1 and CP2 as effective materials for Fe3+ detection, providing valuable insights for designing functional CPs for ion sensing applications.
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