{
  "abstract": "The one-electron reduction of a cyclic alkyl(amino)carbene (CAAC)-stabilised trifluoroborane with Li yields the stable difluoroboryl radical [(CAAC)BF₂]˙, which, although essentially CAAC-centred, reacts like a boron-centred one. Further reduction with Li or Na in THF yields the difluoroboryl anion [(CAAC)BF₂]M, which in non-coordinating solvents undergoes disproportionation to the linear diboracumulene (CAAC)₂B₂ and [(CAAC)BF₂]˙, the reaction being driven by the high lattice energy of the liberated MF equivalents. Reactions with iodoalkanes in Et₂O show that [(CAAC)BF₂]K acts as a boron nucleophile despite a positive partial charge at boron.",
  "abstract_shown": true,
  "affiliations": [
    "Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany h.braunschweig@uni-wuerzburg.de.",
    "Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany.",
    "Instituto de Ciências Exatas, Departamento de Química, Universidade Federal de Minas Gerais Belo Horizonte MG 31270-901 Brazil eufranio@ufmg.br.",
    "Siebold-Gymnasium Rennweger Ring 11 97070 Würzburg Germany."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Eduardo F S Guimarães",
      "orcid": "0000-0002-5345-3631"
    },
    {
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        0,
        1
      ],
      "name": "Andreas Sachs"
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    {
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        0,
        1
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      "name": "Johannes Röder"
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    {
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      ],
      "name": "Sophia M Schalk"
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    {
      "affs": [
        3
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      "name": "Lea Völker"
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    {
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        3
      ],
      "name": "Lenja Wilkens"
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    {
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      "name": "Merle Arrowsmith",
      "orcid": "0000-0003-1449-5932"
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    {
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        1
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      "name": "Ivo Krummenacher",
      "orcid": "0000-0001-9537-1506"
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    {
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      "name": "Sourav Kar",
      "orcid": "0000-0001-7477-7494"
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    {
      "affs": [
        2
      ],
      "name": "Eufrânio N da Silva Júnior",
      "orcid": "0000-0003-1281-5453"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Holger Braunschweig",
      "orcid": "0000-0001-9264-1726"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cz0451yj02dh3.bib",
  "cited_by": 0,
  "doi": "10.1039/d6sc05302e",
  "fulltext_url": "https://europepmc.org/articles/PMC13689737",
  "id": "cz0451yj02dh3",
  "issns": [
    "2041-6520",
    "2041-6539"
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  "landing_url": "https://europepmc.org/article/MED/42924222",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "1605|Organoboron and organosilicon chemistry"
    ]
  ],
  "openalex": "W7221113842",
  "pdf_url": "https://europepmc.org/articles/PMC13689737?pdf=render",
  "pmcid": "PMC13689737",
  "pmid": "42924222",
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cz0451yj02dh3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:33Z",
      "native_id": "MED:42924222",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42924222"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1605|Organoboron and organosilicon chemistry",
      "subfield": "organic"
    }
  ],
  "title": "A difluoroboryl radical and its boryl anion.",
  "title_text": "A difluoroboryl radical and its boryl anion.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:33Z",
  "url": "https://research.draconitic.com/paper/cz0451yj02dh3",
  "venue": "Chemical science",
  "versions": []
}