852392-72-4Relevant academic research and scientific papers
Redox-active dithiafulvenyldiphenylphosphine as a mono- or bidentate ligand: Intramolecular coupling reaction in the coordination sphere of a metal carbonyl fragment
Guerro, Michel,Roisnel, Thierry,Pellon, Pascal,Lorcy, Dominique
, p. 3347 - 3355 (2008/10/09)
The coordinating ability of dithiafulvenyldiphenylphosphine (P-DTF) has been investigated with cis-W(CO)4(piperidine)2. As shown by the metal carbonyl complexes obtained, this redox-active vinylphosphine can act as a monodentate (P) and as a bidentate (P,S) ligand. Oxidation of cis-M(CO)4(P-DTF)2, M = Mo and W, leads to the carbon-carbon bond formation between the two coordinated dithiafulvenyldiphenylphosphines. This chemical coupling of the dithiafulvenyl cores in the coordination sphere of M(CO)4 (M = Mo, W) fragment has been studied in the presence of various oxidizing agents. The use of (BrC 6H4)3NSbCl6 or AgBF4 induces the formation of a five-membered metallacycle with a vinylogous TTF backbone while DDQ leads to a six-membered metallacycle. The syntheses, crystal structures, and electrochemical properties of the complexes obtained are described.
