Bennett, Martin; Claridge, A; Contel-Ferdandez, Maria; Rickard, C; Roper, Warren; Wright, L James
The reaction between [Hg(o-C6H4PPh2)2] and [MHCl(CO)(PPh3)3] gives the complexes [MCl(o-C6H4PPh2)(CO)(PPh3) 2] [M=Ru (1), Os (2)], which contain a four-membered cyclometallated ring. A single-crystal X-ray diffraction study of 2 shows the geometry about osmium to be distorted octahedral with the phosphorus atoms in a meridional arrangement. Both complexes react with CO, which displaces one of the triphenylphosphine ligands, the product from 2 being [OsCl(o-C6H4PPh2)(CO)2(PPh 3)]. In the case of...[Show more]
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