21430-87-5Relevant articles and documents
Atom-transfer and outer-sphere reductions of platinum(IV) complexes. A comparative kinetic investigation
Peloso, Arnaldo,Mohamud, Sacid Issa
, p. 349 - 354 (2007/10/02)
Reductions of platinum(IV) complexes of the type (N-N=en, meen, dmen, tmen, 1,2-pn, 1,3-pn) by FeCp2, Bu4NI and (ClO4)2 in the presence of Et4NCl have been kinetically investigated in methanol solution.The reactions with FeCp2 or Bu4NI obey e second-order rate law reductant), whereas the rate law for the reactions with (ClO4)2 in the presence of Et4NCl is: rate = Pt(II)+kPt(II)->2+4>.The reactivity of the complexes is enhanced by an increased steric hindrance of the N-N ligand.Such a reactivity trend is likely to be related to a parallel increased thermodynamic tendency of platinum(IV) towards reduction.The effect of steric hindrance on the rate is less pronounced in the reaction with 2+ probably due to a direct interaction between the N-N and the NH2Et ligands in the activated complex