Journal article Open Access

A π-conjugated, covalent phosphinine framework

Huang, Jieyang; Tarábek, Ján; Kulkarni, Ranjit; Wang, Cui; Dračínský, Martin; Smales, Glen J.; Tian, Yu; Ren, Shijie; Pauw, Brian R.; Resch-Genger, Ute; Bojdys, Michael J.


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    "description": "<p>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, we expand the toolbox available to polymer and materials chemists by one additional nonmetal, phosphorus. Starting with a building block that contains a &lambda;<sup>5</sup>-phosphinine (C<sub>5</sub>P) moiety, we evaluate a number of polymerisation protocols, finally obtaining a &pi;-conjugated, covalent phosphinine-based framework (CPF-1) <em>via</em> Suzuki-Miyaura coupling. CPF-1 is a weakly porous polymer glass (72.4&nbsp;m<sup>2</sup>&nbsp;g<sup>-1</sup> N<sub>2</sub> BET at 77&nbsp;K) with green fluorescence (&lambda;<sub>max</sub> 546&nbsp;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&nbsp;&mu;mol&nbsp;h<sup>-1</sup>&nbsp;g<sup>-1</sup>. Our 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 that might spark future interest in their applications in light-emitting devices and heterogeneous catalysis.</p>", 
    "language": "ang", 
    "title": "A \u03c0-conjugated, covalent phosphinine framework", 
    "license": {
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        "title": "Layered functional materials - beyond 'graphene'", 
        "acronym": "BEGMAT", 
        "program": "H2020", 
        "funder": {
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    "keywords": [
      "phosphinine", 
      "conjugated microporous polymer", 
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      "heteroatom"
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    "publication_date": "2019-07-19", 
    "creators": [
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        "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
        "name": "Huang, Jieyang"
      }, 
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        "affiliation": "Institute of Organic Chemistry and Biochemistry of the CAS", 
        "name": "Tar\u00e1bek, J\u00e1n"
      }, 
      {
        "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
        "name": "Kulkarni, Ranjit"
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        "affiliation": "Bundesanstalt f\u00fcr Materialforschung und -pr\u00fcfung (BAM)", 
        "name": "Wang, Cui"
      }, 
      {
        "affiliation": "Institute of Organic Chemistry and Biochemistry of the CAS", 
        "name": "Dra\u010d\u00ednsk\u00fd, Martin"
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      {
        "affiliation": "Federal Institute for Materials Research and Testing (BAM)", 
        "name": "Smales, Glen J."
      }, 
      {
        "affiliation": "Sichuan University", 
        "name": "Tian, Yu"
      }, 
      {
        "affiliation": "Sichuan University", 
        "name": "Ren, Shijie"
      }, 
      {
        "affiliation": "Federal Institute for Materials Research and Testing (BAM)", 
        "name": "Pauw, Brian R."
      }, 
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        "affiliation": "Bundesanstalt f\u00fcr Materialforschung und -pr\u00fcfung (BAM)", 
        "name": "Resch-Genger, Ute"
      }, 
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        "orcid": "0000-0002-2592-4168", 
        "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
        "name": "Bojdys, Michael J."
      }
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