A fluorescent cross-linked supramolecular network formed by orthogonal metal-coordination and host–guest interactions for multiple ratiometric sensing

Xu, Luonan; Chen, Dong; Zhang, Qian; Tian, He; Lu, Chenjie; Shen, Xi; Tang, Danting; Qiu, Huayu; Zhang, Mingming; Yin, Shouchun

doi:10.1039/c7py01788j

Cited by 37 publications

(24 citation statements)

References 48 publications

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“…1 Due to the involvement of non- covalent interactions, they possess good structural versatility and stimuli-driven responsiveness towards microenvironment changes, such as pH, 2 temperature, 3 pressure 4 , and light illumination. 5 In addition, they inherit the emission characteristics originating from the chromophores incorporated into the polymer, resulting in widespread applications as self-healing materials, 6 chemical sensors 7 , light-emitting materials, 8 etc. Generally, the properties of fluorescent supramolecular polymers are dependent on the fluorophore installed on the building blocks and the nature of the non-covalent interactions which tailor the connection of those building blocks.…”

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confidence: 99%

Metallacycle-Cored Supramolecular Polymers: Fluorescence Tuning by Variation of Substituents

Shen

Zhou

et al. 2018

J. Am. Chem. Soc.

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Herein, we present a method for the preparation of supramolecular polymers with tunable fluorescence via the combination of metal-ligand coordination and phenanthrene-21-crown-7(P21C7)- based host-guest interaction. A suite of rhomboidal metallacycles with different substituents were prepared via the coordination-driven self-assembly of a P21C7- based 60° diplatinum (II) acceptor and 120° dipyridyl donors. By the variation of the substituents on the dipyridyl donors, the metallacycles exhibit emission wavelengths spanning the visible region (λmax = 427–593 nm). Metallacycle-cored supramolecular polymers were obtained via host-guest interactions between bisammonium salts and P21C7. The supramolecular polymers exhibit similar emission wavelengths of the individual metallacycles and higher fluorescent efficiency in solution and thin films. Utilizing a yellow-emitting supramolecular polymer thin film with high quantum yield (0.22), a white-light-emitting LED was fabricated by painting the thin film onto an ultra violet-LED. This study presents an efficient approach for tuning the properties of fluorescent supramolecular polymers and potential of metallacycle-cored supramolecular polymers as a platform for the fabrication of light-emitting materials with good processability and tunability.

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confidence: 99%

Metallacycle-Cored Supramolecular Polymers: Fluorescence Tuning by Variation of Substituents

Shen

Zhou

et al. 2018

J. Am. Chem. Soc.

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“…Employing the above-mentioned method, Xu et al ( 2018a ) prepared a polystyrene polymer 26 bearing coumarin moieties and dialkylammonium salts and combined this with a TPE derivative 27 bearing a DB24C8 unit and a terpyridine moiety at each side. A supramolecular network was constructed by the simple mixing of 26 , 27 , and Zn(OTf) 2 through DB24C8/dialkylammonium salt and terpyridine/Zn recognition moieties ( Figure 8A ).…”

Section: Crown Ether-based Fluorescent Supramolecular Polymers Constrmentioning

confidence: 99%

“…The insets show the plots of I 460 / I 390 vs. the amount of (C) TBACl, (D) Et 3 N, and (E) cyclen added. Adapted with permission from Xu et al ( 2018a ); copyright 2018, Royal Society of Chemistry.…”

Section: Crown Ether-based Fluorescent Supramolecular Polymers Constrmentioning

confidence: 99%

Fluorescent Supramolecular Polymers Formed by Crown Ether-Based Host-Guest Interaction

et al. 2020

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Inspired by the vast array of assemblies present in nature, supramolecular chemistry has attracted significant attention on account of its diverse supra-structures, which include micelles, vesicles, and fibers, in addition to its extensive applications in luminescent materials, sensors, bioimaging, and drug delivery over the past decades. Supramolecular polymers, which represent a combination of supramolecular chemistry and polymer science, are constructed by non-covalent interactions, such as host-guest interactions, hydrogen bonding, hydrophobic or hydrophilic interactions, metal-ligand interactions, π-π stacking, and electrostatic interactions. To date, numerous host-guest recognition systems have been reported, including crown ethers, cyclodextrins, calixarenes, cucurbituril, pillararenes, and other macrocyclic hosts. Among them, crown ethers, as the first generation of macrocyclic hosts, provide a promising and facile alternative route to supramolecular polymers. In addition, the incorporation of fluorophores into supramolecular polymers could endow them with multiple properties and functions, thereby presenting potential advantages in the context of smart materials. Thus, this review focuses on the fabrication strategies, interesting properties, and potential applications of fluorescent supramolecular polymers based on crown ethers. Typical examples are presented and discussed in terms of three different types of building blocks, namely covalently bonded low-molecular-weight compounds, polymers modified by hosts or guests, and supramolecular coordination complexes.

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“…Supramolecular network A15 was made up of Zn 2+ , a polystyrene-based polymer and a TPE-based molecule via metal coordination and host-guest interactions [59]. RIR of TPE in network A15 causes it to emit bright blue fluorescence in the gel state.…”

Section: Sensing Of Halides and Halogen-containing Anionsmentioning

confidence: 99%

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

et al. 2019

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The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen- containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants.

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A fluorescent cross-linked supramolecular network formed by orthogonal metal-coordination and host–guest interactions for multiple ratiometric sensing

Abstract: A supramolecular network can be used for the ratiometric sensing of pH, cyclen and Cl− due to the incorporation of two fluorophores and two non-covalent interactions.

Cited by 37 publications

References 48 publications

Metallacycle-Cored Supramolecular Polymers: Fluorescence Tuning by Variation of Substituents

Metallacycle-Cored Supramolecular Polymers: Fluorescence Tuning by Variation of Substituents

Fluorescent Supramolecular Polymers Formed by Crown Ether-Based Host-Guest Interaction

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

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