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A π‐Conjugated, Covalent Phosphinine Framework
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SYSNO ASEP 0508939 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A π‐Conjugated, Covalent Phosphinine Framework Author(s) Huang, Jieyang (UOCHB-X)
Tarábek, Ján (UOCHB-X) RID, ORCID
Kulkarni, Ranjit (UOCHB-X)
Wang, C. (DE)
Dračínský, Martin (UOCHB-X) RID, ORCID
Smales, G. J. (DE)
Tian, Y. (CN)
Ren, S. (CN)
Pauw, B. R. (DE)
Resch-Genger, U. (DE)
Bojdys, Michael J. (UOCHB-X)Source Title Chemistry - A European Journal. - : Wiley - ISSN 0947-6539
Roč. 25, č. 53 (2019), s. 12342-12348Number of pages 8 s. Language eng - English Country DE - Germany Keywords fluorescence ; phosphinine ; polymers ; Suzuki-Miyaura coupling ; π-conjugated frameworks Subject RIV CF - Physical ; Theoretical Chemistry OECD category Polymer science Method of publishing Open access Institutional support UOCHB-X - RVO:61388963 UT WOS 000481112500001 EID SCOPUS 85070768874 DOI 10.1002/chem.201900281 Annotation Structural modularity of polymer frameworks is a key advantage of covalent organic polymers, however, only C, N, O, Si, and S have found their way into their building blocks so far. Here, the toolbox available to polymer and materials chemists is expanded by one additional nonmetal, phosphorus. Starting with a building block that contains a λ5‐phosphinine (C5P) moiety, a number of polymerization protocols are evaluated, finally obtaining a π‐conjugated, covalent phosphinine‐based framework (CPF‐1) through Suzuki–Miyaura coupling. CPF‐1 is a weakly porous polymer glass (72.4 m2 g−1 BET at 77 K) with green fluorescence (λmax=546 nm) and extremely high thermal stability. The polymer catalyzes hydrogen evolution from water under UV and visible light irradiation without the need for additional co‐catalyst at a rate of 33.3 μmol h−1 g−1. These results demonstrate for the first time the incorporation of the phosphinine motif into a complex polymer framework. Phosphinine‐based frameworks show promising electronic and optical properties, which might spark future interest in their applications in light‐emitting devices and heterogeneous catalysis. Workplace Institute of Organic Chemistry and Biochemistry Contact asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Year of Publishing 2020 Electronic address https://onlinelibrary.wiley.com/doi/full/10.1002/chem.201900281
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