Mononuclear Platinum(II) Complexes of a Bis(bidentate) Ligand Based on 1,3,4-Oxadiazole and Their Reactions with Copper(I) Salts

Marc-Etienne Moret, Peter Chen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Reaction of the bis(bidentate) ligand 2,5-bis[2-(dimethylamino)phenyl]-1,3,4-oxadiazole (oxanMe) with the precursors trans-[PtMeCl(SMe2)(2)] and [(PhCN)(2)PtCl2] afforded the mononuclear complexes [(oxanMe)Pt(Me)Cl] and [(oxanMe)PtCl2], respectively. [(oxanMe)PtMe2] was observed in equilibrium with oxanMe, [Pt2Me4(mu-SMe2)(2)], and [PtMe2(SMe2)(2)], but could not be isolated. Reaction of [(oxanMe)PtCl2] with silver acetate gave access to [(oxanMe)Pt(OAc)(2)] in excellent yield. The latter was treated with [Cu(NCMe)(4)]-BArF, resulting in a disproportionation reaction that afforded the novel trimetallic complex {[(oxanMe)Pt(OOCCH3)(2)](2)-Cu}{BArF}(2). This complex features a linear Pt-II-Cu-II-Pt-II chain consisting of two Pt -> Cu dative bonds supported by two bridging acetate ligands each.

Original languageEnglish
Pages (from-to)438-446
Number of pages9
JournalEuropean Journal of Inorganic Chemistry
Issue number3
DOIs
Publication statusPublished - Jan 2010
Externally publishedYes

Funding

The authors acknowledge support from the Swiss National Foundation. We thank Mr. P. Seiler for the X-ray structure determinations.

Keywords

  • Platinum
  • Copper
  • N ligands
  • Metal-metal interactions
  • Bridging ligands
  • H BOND ACTIVATION
  • BIMETALLIC REACTIVITY
  • OXIDATIVE ADDITION
  • BINDING ENERGIES
  • MILD CONDITIONS
  • CH ACTIVATION
  • PT(II)
  • COORDINATION
  • CRYSTAL
  • CHEMISTRY

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