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Redox-active, photoluminescent porous polymers based on spirofluorene-bridged N-heterotriangulenes and their feasibility as organic cathode materials

Novel microporous polymers were synthesized through Yamamoto polymerization of selectively brominated spirofluorene-bridged N-heterotriangulenes. Extensive characterization, including combustion analysis, ToF-SIMS, IR, and Raman spectroscopy, confirmed the elemental composition and integrity of the...

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Bibliographic Details
Main Authors: Jocic, Angelina (Author) , Wickenhäuser, Tom (Author) , Lindenthal, Sebastian (Author) , Zhang, Wen-Shan (Author) , Zaumseil, Jana (Author) , Schröder, Rasmus R. (Author) , Klingeler, Rüdiger (Author) , Kivala, Milan (Author)
Format: Article (Journal)
Language:English
Published: 2024
In: Chemical science
Year: 2024, Volume: 15, Issue: 45, Pages: 19094-19103
ISSN:2041-6539
DOI:10.1039/D4SC04276J
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1039/D4SC04276J
Verlag, kostenfrei, Volltext: https://pubs.rsc.org/en/content/articlelanding/2024/sc/d4sc04276j
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Author Notes:Angelina Jocic, Tom Wickenhäuser, Sebastian Lindenthal, Wen-Shan Zhang, Jana Zaumseil, Rasmus Schröder, Rüdiger Klingeler, and Milan Kivala
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Summary:Novel microporous polymers were synthesized through Yamamoto polymerization of selectively brominated spirofluorene-bridged N-heterotriangulenes. Extensive characterization, including combustion analysis, ToF-SIMS, IR, and Raman spectroscopy, confirmed the elemental composition and integrity of the polymers. The amorphous polymers, observed by scanning electron microscopy as globular particles aggregating into larger structures, exhibited remarkable thermal stability (decomposition temperatures > 400 °C) and BET surface areas up to 690 m2 g−1. Dispersions of the tert-butyl-substituted polymer in different solvents displayed bathochromically shifted emission with remarkable solvatochromism. The polymer is reversibly oxidized at +3.81 V (vs. Li/Li+) in composite electrodes with carbon black and reaches specific capacities up to 26 mA h g−1 and excellent cycling stability when implemented as cathode material in lithium-ion batteries. Our results highlight the potential of spirofluorene-bridged N-heterotriangulenes as versatile building blocks for the development of functional redox-active porous polymers.
Item Description:Online veröffentlicht: 23.10.2024
Gesehen am 21.05.2025
Physical Description:Online Resource
ISSN:2041-6539
DOI:10.1039/D4SC04276J

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