Rhodium and Iridium Aminoborane Complexes: Coordination Chemistry of BN Alkene Analogues


  • We thank the EPSRC for funding and for access to the National Mass Spectrometry facility at Swansea University, the John Fell Fund for the provision of ESI-MS facilities, and Andrew Weller (Oxford) for stimulating discussions.


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Side-on or end-on? Rhodium and iridium complexes featuring aminoboranes (R2N[DOUBLE BOND]BH2) as ligands have been synthesized and structurally characterized. Crystallographic measurements show that the ligands—in contrast to isoelectronic alkene donors—bind in an end-on fashion through a bis(σ-borane) binding motif (see structure).