Fluorene‐based Lanthanide Coordination Polymer: Structure, Luminescence and Sensing of Picric Acid. (30th August 2019)

• Record Type: Journal Article
• Authors: Cheng, Jiahui; Liu, Zhipeng; Wang, Dingkang; Chen, Kaixuan; You, Yujian; Zhou, Xinhui
• Is Part Of: Applied organometallic chemistry. Volume 33:Number 11(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-08-30
• Subjects: coordination polymers -- fluorescence -- picric acid (PA) -- sensor; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.5168
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : Luminescent coordination polymers can be potential chemosensors and extensive efforts are being devoted to improve their selectivity and sensitivity. In this work, we report a new kind of fluorene‐based Tb‐CP, Tb4 L6 ·7DMF·5H2 O (Tb 4 L 6, H2 L = 4, 4′‐(9, 9‐dimethyl‐9 H ‐fluorene‐2, 7‐diyl)dibenzoic acid), showing 2D network and strong blue emission. Meanwhile, Tb 4 L 6 exhibits excellent selectivity and sensitivity for picric acid (PA). The quenching constant (Ksv ) ofTb 4 L 6 is equal to 4.5 × 10 4 L/mol during the concentration range of 0–30 μmol/L, which approaches the best reported CPs‐based on PA sensor up to now. Moreover, we went into depth on the possible mechanisms of luminescence quenching. Abstract : Luminescent CPs can be potential chemosensors and extensive efforts are being devoted to improve their selectivity and sensitivity. In this work, we report a new kind of fluorene‐based Ln‐CP, Tb 4 L 6 ·7DMF·5H 2 O, showing strong blue emission. Meanwhile, Tb 4 L 6 exhibits excellent selectivity and high efficiency for the detection of PA with Ksv value of 4.5 × 10 4 M −1 .