Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands: Ni(η2-TEMPO)2

Derek Isrow, Burjor Captain

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The reaction of Ni(COD)2 with two equivalents of the TEMPO radical at 68 °C affords the 16 e- "bow-tie" complex Ni(η2-TEMPO)2, 1, in 78% yield. Compound 1 reacts with tert-butyl isocyanide and phenylacetylene at room temperature to yield the 16 e- distorted square planar nickel complexes Ni(η2- TEMPO)(η1-TEMPO)(CNtBu), 2, and Ni(η2- TEMPO)(η1-TEMPOH)(CCPh), 4, respectively. The facile reactivity of 1 is aided by the transition of the TEMPO ligand from an η2 to η1 binding mode. Complex 4 is an unusual example of hydrogen atom transfer from phenylacetylene to a coordinated TEMPO ligand.

Original languageEnglish (US)
Pages (from-to)5864-5866
Number of pages3
JournalInorganic Chemistry
Volume50
Issue number13
DOIs
StatePublished - Jul 4 2011

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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