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Zhao Z, Zhang L, Zhao Y, Li Y, Shi J, Zhi J, Dong Y. Helical Self-Assembly and Fe 3+ Detection of V-Shaped AIE-Active Chiral Tetraphenylbutadiene-Based Polyamides. Chemistry 2023; 29:e202301035. [PMID: 37200207 DOI: 10.1002/chem.202301035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/07/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
Chiral aggregation-induced emission (AIE) molecules have drawn attention for their helical self-assembly and special optical properties. The helical self-assembly of AIE-active chiral non-linear main-chain polymers can produce some desired optical features. In this work, a series of V-shaped chiral AIE-active polyamides P1-C3, P1-C6, P1-C12 and linear P2-C3, P2-C6, bearing n-propyl/hexyl/dodecyl side-chains, based on tetraphenylbutadiene (TPB), were prepared. All target main-chain polymers exhibit distinct AIE characteristics. The polymer P1-C6 with moderate length alkyl chains shows better AIE properties. The V-shaped main-chains and the chiral induction of (1R,2R)-(+)-1,2-cyclohexanediamine in each repeating unit promote the polymer chains display helical conformation, and multiple helical polymer chains induce nano-fibers helicity when the polymer chains aggregate and self-assemble in THF/H2 O mixtures. Simultaneously, the helical conformation polymer chains and helical nano-fibers cause P1-C6 produce strong circular dichroism (CD) signals with positive Cotton effect. Moreover, P1-C6 could also occur fluorescence quenching response to Fe3+ selectively with a low detection limit of 3.48 μmol/L.
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Affiliation(s)
- Zixuan Zhao
- School of Chemistry and Chemical Engineering Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Lulu Zhang
- School of Chemistry and Chemical Engineering Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Ying Zhao
- School of Chemistry and Chemical Engineering Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Yanji Li
- School of Chemistry and Chemical Engineering Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Jianbing Shi
- School of Materials Science and Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Junge Zhi
- School of Chemistry and Chemical Engineering Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Yuping Dong
- School of Materials Science and Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
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Pasch P, Killa M, Junghans HL, Schmidt M, Schmidt S, Voskuhl J, Hartmann L. Take your Positions and Shine: Effects of Positioning Aggregation-Induced Emission Luminophores within Sequence-Defined Macromolecules. Chemistry 2021; 27:10186-10192. [PMID: 33876476 PMCID: PMC8362002 DOI: 10.1002/chem.202101086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Indexed: 12/17/2022]
Abstract
A luminophore with aggregation‐induced emission (AIE) is employed for the conjugation onto supramolecular ligands to allow for detection of ligand binding. Supramolecular ligands are based on the combination of sequence‐defined oligo(amidoamine) scaffolds and guanidiniocarbonyl‐pyrrole (GCP) as binding motif. We hypothesize that AIE properties are strongly affected by positioning of the luminophore within the ligand scaffold. Therefore, we systematically investigate the effects placing the AIE luminophore at different positions within the overall construct, for example, in the main or side chain of the olig(amidoamine). Indeed, we can show that the position within the ligand structure strongly affects AIE, both for the ligand itself as well as when applying the ligand for the detection of different biological and synthetic polyanions.
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Affiliation(s)
- Peter Pasch
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Matthias Killa
- Faculty of chemistry (Organic chemistry) and CENIDE, University of Duisburg Essen, Universitätsstrasse 7, 45141, Essen, Germany
| | - Hauke Lukas Junghans
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Melanie Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Stephan Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
| | - Jens Voskuhl
- Faculty of chemistry (Organic chemistry) and CENIDE, University of Duisburg Essen, Universitätsstrasse 7, 45141, Essen, Germany
| | - Laura Hartmann
- Department for Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Duesseldorf, Universitätsstraße 1, Düsseldorf, 40225, Germany
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