Synthesis, structures, and oxidation of iridium(III) alkyl compounds containing thiolate and dithiolate ligands

Ka Wang Chan, Yiu Keung Sau, Qian Feng Zhang, Wai Yeung Wong, Ian D. Williams, Wa Hung Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Treatment of [Ir(dtbpy){CH2CMe2Cc6H4(Ir-Cc)}(C6H4tBu-2)] (1) (dtbpy = 4,4′-di-tert-butyl-2,2′-bipyridyl) with the dichalcogenides R2Q2 in refluxing toluene afforded the chalcogenolate-bridged dinuclear complexes [Ir(dtbpy)-{CH2CMe 2C66H4(Ir-Cc)}] 2(μ-QR)2 [RQ = pTolS (2), PhSe (3)]. Similarly, heating a solution of [Rh(dtbpy){CH2CMe2-Cc6H4(Ir-Cc)}(CH2CMe2Ph)] and p-tolyl sulfide in toluene at reflux gave [Rh(dtbpy){CH2CMe 2Cc6H4(Ir-Cc)}] 2(μ-SpTol)2 (4). Treatment of [Ir(dtbpy)(CH 2CMe2Ph)Cl]2(μ-Cl)2 with Na(Sxyl) (xyl = 2,6-dimethylphenyl) and Na2(S∧S) afforded [Ir(dtbpy)(CH2CMe2Ph)(Sxyl)2]2 (5) and [Ir(dtbpy)-(CH2CMe2Ph)(S∧S)]2 {S∧S2- = maleonitriledithiolate (6), toluene-3,4-dithiolate (7), benzene-1,2-dithiolate (8)}. Oxidation of compound 8 with AgOTf (OTf- = triflate) resulted in dimerization of the bdt2- ligand by S-S bond formation and the isolation of [Ir2(dtbpy)2(CH 2Me2Ph)2{(bdt)2}][OTf]2 (9). The solid-state structures of compounds 2, 3, 4, 7, and 9 were determined. KGaA, 2008.
Original languageEnglish
Pages (from-to)4353-4359
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number28
DOIs
Publication statusPublished - 1 Oct 2008
Externally publishedYes

Keywords

  • Iridium
  • Oxidation
  • S ligands

ASJC Scopus subject areas

  • Inorganic Chemistry

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