Iridium(III) and rhodium(III) cyclometalated complexes containing sulfur and selenium donor ligands

Man Kit Lau, Ka Man Cheung, Qian Feng Zhang, Yinglin Song, Wing Tak Wong, Ian D. Williams, Wa Hung Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

Treatment of [M(Buppy)2Cl]2(M=Ir (1), Rh (2); BuppyH=2-(4′-tert-butylphenyl)pyridine) with Na(Et2NCS2), K[S2P(OMe)2], and K[N(Ph2PS)2]2afforded monomeric [Ir(Buppy)2(S∧S)] (S∧S=Et2NCS2(3), S2P(OMe)2(4), N(PPh2S)2(5)) and [Rh(Buppy)2(S∧S)] (S∧S=Et2NCS2(6), S2P(OMe)2(7), N(PPh2S)2(8)), respectively. Reaction of 1 with Na[N(PPh2Se)2] gave [Ir(Buppy)2{N(PPh2Se)2}] (9). The crystal structures of 3, 4, 7, and 8 have been determined. Treatment of 1 or 2 with AgOTf (OTf=triflate) followed by reaction with KSCN gave dinuclear [{M(Buppy)2}2(μ-SCN)2] (M=Ir (10), Rh (11)), in which the SCN-ligands bind to the two metal centers in a μ-S,N fashion. Interaction of 1 and 2 with [Et4N]2[WQ4] gave trinuclear heterometallic complexes [{Ir(Buppy)2}2(μ-WQ4)] (Q=S (12), Se (13)) and [{Rh(Buppy)2}2{(μ-WQ)4}] (Q=S (14), Se (15)), respectively. Hydrolysis of 12 led to formation of [{Ir(Buppy)2}2{W(O)(μ-S)2(μ3-S)}] (16) that has been characterized by X-ray diffraction.
Original languageEnglish
Pages (from-to)2401-2410
Number of pages10
JournalJournal of Organometallic Chemistry
Volume689
Issue number14
DOIs
Publication statusPublished - 15 Jul 2004
Externally publishedYes

Keywords

  • Cyclometalated complex
  • Iridium(III)
  • Rhodium(III)
  • Sulfur ligands

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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