Bifunctional rhodium complex featuring a silyl1,8-naphthyridine si,n-chelate ligand: Cooperation of metal and pendant base for capture and bond-weakening of BH3

Keita Sato, Takashi Komuro, Hisako Hashimoto, Hiromi Tobita

Research output: Contribution to journalArticlepeer-review

Abstract

A dirhodium complex bearing a newly-designed silyl1,8-naphthyridine ligand (napySi), [Rh(κ2Si,N-napySi)(H)(μ-Cl)]2 (1), was synthesized. Reaction of complex 1 with excess BH3• SMe2 afforded a mononuclear borane adduct Rh[κ4Si,N,H,HnapySi(BH3)](H)Cl (2), revealing that rhodium and the uncoordinated naphthyridine nitrogen cooperatively captured BH3 and weakened its two BH bonds. Complex 2 contains a Rh(μ-H)2B core composed of two RhHB 3-center 2-electron (3c-2e) bonds where one RhH interaction is considerably weakened by strong trans-influence of the silyl ligand moiety.

Original languageEnglish
Pages (from-to)1431-1434
Number of pages4
JournalChemistry Letters
Volume49
Issue number11
DOIs
Publication statusPublished - 2020 Nov

Keywords

  • 1,8-Naphthyridine backbone
  • Bifunctional complex
  • Silyl ligand

ASJC Scopus subject areas

  • Chemistry(all)

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