A Stable N-Hetero-Rh-Metallacyclic Silylene

Shintaro Takahashi, Ekaterina Bellan, Antoine Baceiredo, Nathalie Saffon-Merceron, Stéphane Massou, Norio Nakata, Daisuke Hashizume, Vicenç Branchadell, Tsuyoshi Kato

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16 Citations (Scopus)


© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim A cyclic (amino)metal-substituted dicoordinated silylene derivative has been synthesized and fully characterized. Of particular interest is that the N-hetero-RhI-metallacyclic silylene exhibits a distorted tetrahedral geometry around the rhodium atom and a considerably shortened Si−Rh bond (2.138 Å) compared to classical Si−Rh single bonds (ca. 2.30–2.35 Å). A theoretical investigation reveals that the geometrical deviation around the rhodium center from the classical square-planar to a tetrahedral geometry increases the π-donating and σ-accepting character of the rhodium atom, thereby efficiently stabilizing the silylene moiety.
Original languageEnglish
Pages (from-to)10310-10314
JournalAngewandte Chemie - International Edition
Publication statusPublished - 22 Jul 2019


  • metallacycles
  • N-heterocyclic silylenes
  • rhodium
  • silylenes
  • structure elucidation


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