Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands†
Abstract
The complexes [Ru(Tai)Cl{=C(H)Ph}(PCy3)] (4) and [Ru(PhBai)Cl{=C(H)Ph}(PCy3)] (5) [where Tai = HB(7-azaindolyl)3 and PhBai = Ph(H)B(7-azaindolyl)2] have been prepared and structurally characterised. The borohydride unit is located in the coordination site trans to the chloride