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Novel fluorescent supramolecular polymer metallogel based on Al 3+ coordinated cross‐linking of quinoline functionalized‐ pillar[5]arene act as multi‐stimuli‐responsive materials
Author(s) -
He JunXia,
Zhang YouMing,
Hu JianPeng,
Li YingJie,
Zhang Qi,
Qu WenJuan,
Yao Hong,
Wei TaiBao,
Lin Qi
Publication year - 2020
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.5519
Subject(s) - chemistry , fluorescence , quinoline , trifluoroacetic acid , supramolecular chemistry , aggregation induced emission , pillar , polymer , triethylamine , polymer chemistry , combinatorial chemistry , molecule , organic chemistry , physics , structural engineering , quantum mechanics , engineering
A novel supramolecular polymer metallogel ( QP5‐AlG ) has been constructed by cross‐linking of bis‐8‐hydroxyquinoline functionalized pillar[5]arene with Al 3+ . The metallogel QP5‐AlG shows light blue aggregation induced emission (AIE) in DMSO/H 2 O binary solution. Interestingly, the QP5‐AlG shown multiple external stimuli‐responsive behaviors such as temperature, guest compounds, acid, base and so on. The QP5‐AlG can be used as a fluorescent material for detection of Fe 3+ , F ‐ , trifluoroacetic acid (TFA) and triethylamine (TEA) by different fluorescence states (“on” or “off”). The (limits of lowest detection) LOQs of the QP5‐AlG for Fe 3+ , F ‐ , TFA and TEA are in the range of 4.39 × 10 ‐9 ‐1.82 × 10 ‐7 M. More interestingly, a QP5‐AlG ‐based rewritable and erasable fluorescent platform was demonstrated, which offers a potential testbed for performing “write‐erase‐write” cycles multiple times. This study provides insight into the development of novel multifunctional supramolecular materials.

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