Metal-controlled reactivity of a pincer-type, σ-coordinated naphthyl radical anion

Christian M. Frech, Yehoshoa Ben-David, Lev Weiner, David Milstein

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Reduction of the new, naphthalene-based pincer complex [(C10H5(CH2PiPr2)2)Rh(η1-N2)] with potassium metal gave the corresponding σ-coordinated naphthyl radical anion complex, with a ring-centered radical and no change in the formal metal oxidation state. This paramagnetic complex can be reoxidized to the diamagnetic one with [Cp2Fe][BF4], the structural integrity being retained. Unexpectedly, treatment of a THF solution of the reduced complex with water leads to the immediate evolution of dihydrogen, with reoxidation to the starting complex. This is in striking contrast with the well-known reactivity of the naphthide radical anion, which undergoes ring protonation by water to form 1,4-dihydronaphthalene and naphthalene in a 1:1 ratio.

Original languageEnglish
Pages (from-to)7128-7129
Number of pages2
JournalJournal of the American Chemical Society
Volume128
Issue number22
DOIs
Publication statusPublished - Jun 7 2006

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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