Cyclic Disilyl- or Digermylated Germylenes

Johann Hlina, Judith Baumgartner*, Christoph Marschner*, Lena Albers, Thomas Müller*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The preparation of triethylphosphine adducts of cyclic disilylated or digermylated germylenes was achieved by reaction of 1,4-dipotassio-1,1,4,4-tetrakis(trimethylsilyl)tetramethyltetrasilane with GeBr2·(dioxane) and PEt3. Phosphine abstraction with B(C6F5)3 allowed formation of the base-free germylenes, which undergo 1,2-trimethylsilyl shifts to the germylene atom to form the respective silagermene or digermene, which further dimerize in [2 + 2] cycloadditions to tricyclic compounds. The reasons responsible for the germylenes’ completely different reactivities in comparison to the previously studied analogous stannylenes and plumbylenes were elucidated in a theoretical study.
Original languageEnglish
Pages (from-to)3404-3410
JournalOrganometallics
Volume32
Issue number11
DOIs
Publication statusPublished - 2013

Fields of Expertise

  • Advanced Materials Science

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