Synthesis and properties of NHC-supported palladium(I) Dimers with Bridging Allyl, Cyclopentadienyl, and Indenyl Ligands

Wei Dai, Matthew J. Chalkley, Gary W. Brudvig, Nilay Hazari, Patrick R. Melvin, Ravi Pokhrel, Michael K. Takase

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The synthesis of a family of new Pd(I) dimers, (μ-All)(μ-Cp){Pd(IPr)} 2 (All = C3H5, Cp = C5H5, IPr = 1,3-bis(2,6-diisopropylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene), (μ-All)(μ-Ind){Pd(IPr)}2 (Ind = C7H9), (μ-Cp)(μ-Cp){Pd(IPr)}2, (μ-Cp)(μ-Ind){Pd(IPr)} 2, and (μ-Ind)(μ-Ind){Pd(IPr)}2, which contain a combination of bridging allyl, Cp, and indenyl ligands and are all supported by IPr as the ancillary ligand, is reported. All of these compounds are thermally stable at room temperature, and the solid-state geometries, electronic structures, reactivity, and redox chemistry of these new compounds have been compared with those of the dimer (μ-All)2{Pd(IPr)}2, which was previously reported. This work provides further evidence that bridging allyl, Cp, and indenyl ligands bind in a similar manner to Pd(I). However, it is demonstrated that there are notable differences between the IPr-supported species and related Pd(I) dimers with triethylphosphine ancillary ligands, which have been previously described.

Original languageEnglish
Pages (from-to)5114-5127
Number of pages14
JournalOrganometallics
Volume32
Issue number18
DOIs
Publication statusPublished - Sep 23 2013

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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