2D Metal‐Organic Framework Based on the Functionalized Anthracene Derivative as A Dual‐Functional Luminescent Probe for Fe3+ and Ascorbic Acid

Abstract

AbstractTwo‐dimensional (2D) materials are newly developed for their thickness‐dependent physical and chemical properties. The major characteristic of this type of material is that the planar structure flaunts a large surface‐to‐volume ratio, thereby providing a platform for straightforward and easy functionalization with chemical moieties, which prompting us to use it as a chemical sensor. We designed and synthesized two types of 2D metal‐organic frameworks based on the functionalized anthracene derivative 4,4′‐(anthracene‐9,10‐diylbis(ethyne‐2,1‐diyl))dibenzoic acid (H2L), [Pb(L)(DMF)] (denoted as Pb‐MOF) and [Sm(L)(HCO2)(DMF)] (denoted as Sm‐MOF). These two materials are great sensors for probing Fe3+ and ascorbic acid (AA) with the low concentration according to “color‐change recover” effect. Fe3+ was captured by MOF and this quenching mechanism was investigated using luminescence, UV‐vis, XPS, and lifetime studies.