1429230-52-3Relevant academic research and scientific papers
Diplatinum complexes: Chemoselective reactions of the μ-orthometalated, metal-metal bonded complex
Archambault, Christine,Bender, Robert,Dusausoy, Yves,Welter, Richard,Braunstein, Pierre
, p. 545 - 552 (2013)
In order to investigate further the chemoselectivity of reactions involving the μ-orthometalated, metal-metal bonded dinuclear Pt(I) complex [Pt 2(μ-o-C6H4PPh2)(μ-PPh 2)(PPh3)2](Pt-Pt) (1), it was reacted with HCl and HI using various stoichiometries. The first step was the breaking of the metal-carbon bond and the formation of C-H and Pt-X bonds. When a 1:1 ratio was used, the complexes [Pt2X(μ-PPh2)(PPh3) 3](Pt-Pt) (2, X = Cl; 3, X = I) have been obtained but the use of a 2:1 ratio resulted instead in the formation of the complexes [Pt 2(μ-H)(μ-PPh2)X2(PPh3) 2](Pt-Pt) (4, X = Cl; 6, X = I). The latter transformed into [Pt 2(μ-X)(μ-PPh2)X2(PPh3) 2] (5, X = Cl; 7, X = I) in the presence of an additional equivalent of HX. The cis,cis- and cis,trans-isomers of 7 were also obtained by oxidation of 3 with one equivalent of iodine. Whereas compounds 4, cis,cis-5, and cis,trans-7 have been characterized in solution, the complexes 2·1/2C7H8, 3, 6 and cis,cis-7 have been isolated and structurally characterized by X-ray diffraction.
