Formation of the palladium(IV) complex [(Me 3tacn)Pd IVMe 3] + through aerobic oxidation of (Me 3tacn)Pd IIMe 2 (Me 3tacn = N, N ′, N ″-trimethyl-1,4,7-triazacyclononane)

Julia R. Khusnutdinova, Fengrui Qu, Ying Zhang, Nigam P. Rath, Liviu M. Mirica

Research output: Contribution to journalArticlepeer-review

Abstract

The dimethyl Pd II complex (Me 3tacn)Pd IIMe 2 (Me 3tacn = N,N′,N″-trimethyl- 1,4,7-triazacyclononane) undergoes facile aerobic oxidation to yield the stable species [(Me 3tacn)Pd IVMe 3] +. EPR, UV-vis, and ESI-MS studies suggest an inner-sphere mechanism for the oxidation of (Me 3tacn)PdMe 2 by O 2 and formation of Pd IV species. In addition, the structurally characterized complex [(Me 3tacn)Pd IVMe 3]I undergoes selective elimination of ethane at elevated temperatures. Overall, this system represents one of the first examples of aerobic oxidation of a Pd II organometallic precursor to yield a well-defined Pd IV product, supporting the role of Pd IV species as viable intermediates in Pd-mediated catalytic or stoichiometric aerobic oxidative transformations.

Original languageEnglish (US)
Pages (from-to)4627-4630
Number of pages4
JournalOrganometallics
Volume31
Issue number13
DOIs
StatePublished - Jul 9 2012
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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