Structure and reactivity of dinitrogen rhodium complexes containing n-heterocyclic carbene ligands

Jeremy M. Praetorius, Ruiyao Wang, Cathleen M. Crudden

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31 Citations (Scopus)


The rhodium bis-carbene complex [Rh(IPr)2(N2)Cl] , whereIPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, hasbeen synthesized and characterized. The complex is a rareexample of a four-coordinate rhodium complex featuring ni-trogen bound end-on. While quite stable as a solid under in-ert atmosphere, in solution the N2 ligand has been found tobe quite labile. This lability has been exploited in the synthe-sis of complexes with the formula [Rh(IPr)2(XY)Cl] , where XY=O2,H2 and CO. Interestingly, the dihydride coordinationleads to oxidation of the metal centre to RhIII, even thoughprevious studies from our lab have shown that Rh remains inthe +1 oxidation state upon coordination of dioxygen.

Original languageEnglish
Pages (from-to)1746-1751
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number13 SPEC. ISS.
Publication statusPublished - May 2009
Externally publishedYes


  • Carbene ligands
  • Dihydride
  • Metal hydride
  • N ligands
  • N-Heterocyclic carbenes
  • Rhodium

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