Iridium and rhodium complexes containing dichalcogenoimidodiphosphinato ligands

Wai Man Cheung, Chui Ying Lai, Qian Feng Zhang, Wai Yeung Wong, Ian D. Williams, Wa Hung Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)


Treatment of [MCl(CO)(PPh3)2] with K[N(R2PQ)2] afforded [M{N(Ph2PQ)2}(CO)(PPh3)] (M = Ir, Rh; Q = S, Se). The IR C=O stretching frequencies for [M(CO)(PPh3){N(Ph2PQ)2}] were found to decrease in the order S > Se. Treatment of [M(COD)Cl]2with K[N(Ph2PQ)2] afforded [M(COD){N(Ph2PQ)2}] (COD = 1,5-cyclooctadiene; M = Ir, Rh; Q = S, Se). Treatment of [Ir(ol)2Cl] with K [ N ( Pr2iPQ )2] afforded [ Ir ( ol )2{ N ( Pr2iPQ )2} ]2(ol = cyclooctene COE, C2H4; Q = S, Se). Oxidative addition of [Ir(CO)(PPh3){N(Ph2PS)2}] and [Ir(COD){N(Ph2PS)2}] with HCl afforded [Ir(H)(Cl)(CO)(PPh3){N(Ph2PS)2}] and trans-[Ir(H)(Cl)(COD){N(Ph2PS)2}], respectively. Oxidative addition of [Ir(CO)(PPh3){N(Ph2PS)2}] with MeI afforded [Ir(Me)(I)(CO)(PPh3){N(Ph2PS)2}]. Treatment of [Ir(COE)2Cl]2with K[N(R2PO)2] afforded [Ir(COE)2{N(Ph2PO)2}] that reacted with MeOTf (OTf = triflate) to give [Ir{N(Ph2PO)2}(COE)2(Me)(OTf)]. The crystal structures of [Ir(CO)(PPh3){N(Ph2PS)2}], [M(COD){N(Ph2PS)2}] (M = Ir, Rh), [ Ir ( ol )2{ N ( Pr2iPS )2} ](ol = COE, C2H4), trans-[Ir(H)(Cl)(COD){N(Ph2PS)2}], and [Ir(COE)2{N(Ph2PO)2}] have been determined.
Original languageEnglish
Pages (from-to)2712-2720
Number of pages9
JournalInorganica Chimica Acta
Issue number9
Publication statusPublished - 1 Jun 2006
Externally publishedYes


  • Chalcogen ligands
  • Crystal structures
  • Iridium
  • Oxidative addition
  • Rhodium

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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