An Isolable Bis(Germylene)-Stabilized Plumbylone

Ming Chen, Zhaoyin Zhang, Zihao Qiao, Lili Zhao, Zhenbo Mo

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14 Scopus citations

Abstract

We report herein the synthesis of a stable plumbylone (3) by reduction of a bromodigermylplumbylene (2) with 2.2 equiv of potassium graphite (KC8). The molecular structure of 3 was established by a single-crystal X-ray diffraction study and features a two-coordinated Pb center with an acute Ge−Pb−Ge bond angle. Computational studies showed that this complex (3) possesses a singlet electronic ground state with a Pb0 center. Its high thermal stability can be most likely ascribed to the delocalization of π electrons over the Ge−Pb−Ge moiety. A preliminary reactivity study demonstrates that complex 3 can deliver Pb0 atoms to an organic azide producing a tetrameric imido complex [(PbNDipp)4] (Dipp=2,6-iPr-C6H3, 4) and perform a metathesis reaction with GeCl2⋅dioxane to produce a bis(germylene)-stabilized germylone (5), highlighting the synthetic utility of 3.

Original languageEnglish
Article numbere202215146
JournalAngewandte Chemie - International Edition
Volume62
Issue number4
DOIs
StatePublished - 23 Jan 2023

Keywords

  • Bis(Germylene) Ligand
  • Carboranes
  • Germylone
  • Plumbylone
  • Zerovalent

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