P-C bond cleavage by a heterobimetallic polyhydrido complex, (C5Me5)Ru(mu-H)(3)Ir(C5Me5). Structure determination and fluxional behavior of a bridging phosphido complex, (C5Me5)Ru(mu-PPh2)(mu-H)(mu-eta(1):eta(2)-C6H5)Ir(C5Me5)

摘要

The heterobimetallic phosphido complex (C5Me5)Ru(mu-PPh2)(mu-H)(mu-eta(1):eta(2)-C6H5)Ir(C5Me5) (2) was formed by the reaction Of (C5Me5)Ru(mu-H)(3)Ir(C5Me5) (1) with triphenylphosphine as a result of P-C bond cleavage. The molecular structure of 2 was determined by single-crystal X-ray diffraction studies. The fluxional behavior of the mu-eta(1):eta(2)-phenyl ligand in 2 was elucidated by means of a variable-temperature H-1 NMR and a selective pulse irradiation method.