Pseudotetrahedral Rhodium(I) complexes

A combination of four-electron donors, such as alkynes, with strongly donating and strong-field scorpionate ligands is appropriate to create pseudotetrahedral rhodium(I) environments, as found in [Rh(PhBP3)(HCCPh)], which promotes HC bond activation and CC coupling reactions under very smooth conditions.The generous financial support from MICINN/FEDER (Project CTQ2011-22516), Gobierno de Aragón/FSE (GA/FSE, Inorganic Molecular Architecture Group, E70), and GA-La Caixa (Project 2012/GA LC 057) are gratefully acknowledged. A. M. Geer thanks GA for a PhD fellowship and A. Julián thanks GA-LC for a P.I. contract.Peer reviewe