Synthesis and Characterization of Methoxylated Oligosilyl Group 4 Metallocenes

Aileen Sauermoser, Thomas Lainer, Gabriel Glotz, Frank Czerny, Bettina Schweda, Roland C. Fischer, Michael Haas*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

New methoxylated oligosilyl-substituted metallocenes were synthesized by the reaction of two oligosilanides with different metallocene dichlorides (M = Ti, Zr, and Hf). The first investigated tris(trimethoxysilyl)silanide [(MeO)3Si]3SiK (1) underwent a selective monosubstitution to the respective oligosilyl-decorated metallocenes [(MeO)3Si]3SiMClCp2(2-4). Surprisingly, the attempted disilylation with this silanide was not possible. However, in the case of titanocene dichloride, a stable radical [(MeO)3Si]3SiTiCp2(5) was formed. The unsuccessful isolation of bisilylated metallocenes encouraged us to investigate the reactivity of another silanide. Therefore, we synthesized a hitherto unknown disilanide K[(MeO)3Si]2Si(SiMe2)2Si[(MeO)3Si]2K (8), which was accessible in good yields. The reaction of compound 8 and different metallocene dichlorides (M = Ti, Zr, and Hf) gave rise to the formation of heterocyclic compounds 9-11 in good yields.

Original languageEnglish
Pages (from-to)14742-14751
Number of pages10
JournalInorganic Chemistry
Volume61
Issue number37
DOIs
Publication statusPublished - 19 Sep 2022

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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