78064-11-6Relevant academic research and scientific papers
Carbonylation of phenylplatinum(II) complexes containing bidentate ligands
Anderson, Gordon K.,Lumetta, Gregg J.
, p. 1542 - 1545 (2008/10/08)
A series of complexes of the type [PtClPh(P Y)] (P Y = 1,2-bis(diphenylphosphino)ethane (dppe), 1-(diphenylphosphino)-2-(diphenylarsino)ethane (appe), 1,3-bis(diphenylphosphino)propane (dppp), 1-(diphenylphosphino)-2-(methylthio)ethane (PC2S), or 1-(diphenylphosphino)-2-(dimethylamino)ethane (PC2N)) has been prepared and the carbonylation reactions of these complexes investigated. The corresponding benzoyl complexes have been generated by an alternative route. No reaction of [PtClPh(P Y)] with CO takes place when P Y = dppe or appe, but carbonylation proceeds smoothly, albeit slowly, when P Y = dppp, PC2S, or PC2N. The reaction is most rapid for the dppp complex. These results are rationalized in terms of both dissociative and nondissociative reaction pathways.
Reactivity of platinum diolefin complexes. 2. Reactions with bulky and chelating group 5B ligands and studies relating to carbonyl insertion
Anderson,Clark,Davies
, p. 3607 - 3611 (2008/10/08)
Reactions of [PtXY(cod)] (X = Y = Cl, Me, Ph; X = Cl, Y = Ph, COPh) with bulky monodentate and chelating group 5B ligands have been examined by 31P{1H} NMR spectroscopy. The molecularity of the products is a function of steric bulk with monodentate ligands and a function of chelate bite with bidentate ligands. The geometry of the products is controlled largely by the trans influence of both neutral and anionic groups. Where the steric constraints involved in nucleophilic attack of the complexes by bulky ligands are dominant, olefin displacement can be prevented entirely. Reactions of [PtXYL2] (X = Y = Ph, Cl; X = Ph, Y = Cl; L = monodentate ligand, L2 = bidentate ligand) with carbon monoxide have been studied by 31P{1H} and 13C{1H} NMR and infrared spectroscopies. The mechanism of carbonyl insertion at platinum(II) is discussed in terms of the chelate effect and the trans influence of the anionic ligands.
