Two different, metal-dependent coordination modes of a dicarbene ligand

Maity R., Rit A., Schulte To Brinke C., Kösters J., Hahn F. E.

Research article (journal)

Abstract

The bisimidazolium salt H2-1(PF6)2 featuring a bridging 1,4-phenylene group reacts with 0.5 equiv of [PdCl(allyl)]2 in the presence of Cs2CO3 to give the dinuclear complex [2](PF6)2, whereas the reaction of the same bisimidazolium salt with 0.5 equiv of [Ir(Cl)2(Cp)] 2 yields the mononuclear orthometalated complex [3]PF6 with one remaining imidazolium unit. The unreacted imidazolium group in complex [3]PF6, however, can also be metalated with RhIII to yield the doubly orthometalated heterobimetallic complex [4]. In complex [4], each MIII center (M = IrIII and RhIII) is coordinated by one NHC unit and orthometalates the central aryl ring of the ligand. © 2013 American Chemical Society.

Details zur Publikation

Pages: 4
Release year: 2013
Language in which the publication is written: English
Link to the full text: http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84887647536&origin=inward