Reversible P–P bond cleavage at an iridium(iii) metal centre
2022
Coles, Simon J. | Horton, Peter N. | Kimber, Patrick | Klooster, Wim T. | Liu, Pingchuan | Plasser, Felix | Smith, Martin B. | Tizzard, Graham J.
Treatment of a κ¹-P-monodentate bicyclic diphosphane iridium(iii) complex with a labile gold(i) precursor afforded an unusual Irᴵᴵᴵ/Auᴵ complex in which the P–P single bond has been cleaved. This reaction was cleanly reversed upon addition of tertiary phosphine. Carbon–carbon bond activation, across neighbouring P₂C₂N rings of the coordinated bicyclic diphosphane, occurred upon thermolysis of the Irᴵᴵᴵ/Auᴵ complex.
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