Premium
Fluorene‐based Lanthanide Coordination Polymer: Structure, Luminescence and Sensing of Picric Acid
Author(s) -
Cheng Jiahui,
Liu Zhipeng,
Wang Dingkang,
Chen Kaixuan,
You Yujian,
Zhou Xinhui
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5168
Subject(s) - picric acid , fluorene , luminescence , chemistry , lanthanide , selectivity , quenching (fluorescence) , coordination polymer , polymer , fluorescence , photochemistry , inorganic chemistry , combinatorial chemistry , organic chemistry , optoelectronics , materials science , optics , ion , physics , catalysis
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, Tb 4 L 6 ·7DMF·5H 2 O ( Tb 4 L 6 , H 2 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 (K sv ) of Tb 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.