par Kauffmann, Jean-Michel 
;Mesbout, F.;Patriarche, Gaston ;Vereecken, Jean ;Christian, Gary D.
Référence Electroanalysis, 1, 2, page (161-165)
Publication Publié, 1989
;Mesbout, F.;Patriarche, Gaston ;Vereecken, Jean ;Christian, Gary D.Référence Electroanalysis, 1, 2, page (161-165)
Publication Publié, 1989
Article révisé par les pairs
| Résumé : | The electrochemical redox behavior of iproplatin (JM9) was investigated at the carbon paste electrode using cyclic voltammetry in the absence and presence of free chloride ions. In the absence of chloride, a diffusion‐controlled, two‐electron reduction peak (Epc1) is observed, giving a platinum(II) derivative that is oxidized to a Pt(IV) compound on cycling (Epa1). Photolytic reduction‐hydrolysis to two platinum(II) derivatives results in a Pt(II) compound which on anodic scanning is oxidized to a Pt(IV) compound (Epa2) that is subsequently reduced to'a Pt(II) compound on cycling, to give rise to a second (earlier) reduction peak (Epc2). The other (nonhydrolyzed) photolytic reduction Pt(II) product can also be reduced (E pc2′) to give Pt(O) that subsequently is oxidized to Pt oxides (E pa*); this latter Pt(II) compound is prevalent in the presence of chloride ions, which inhibit hydrolysis. Copyright © 1989 VCH Publishers, Inc. |
