| dc.creator | Arancibia,Verónica | |
| dc.creator | Valderrama,Mauricio | |
| dc.creator | Contreras,Raúl | |
| dc.creator | Muñoz,Patricio | |
| dc.date | 2003-12-01 | |
| dc.date.accessioned | 2019-11-14T12:57:41Z | |
| dc.date.available | 2019-11-14T12:57:41Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000400015 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/118448 | |
| dc.description | The electrochemical behavior of binuclear ruthenium(II) complexes of the type [{(arene)RuCl2}2] where arene = benzene (1), toluene (2), p-cymene (3) and hexamethylbenzene, (HMB) (4), have been studied by cyclic voltammetry, coulometry and voltammetry with rotating disk and ring-disk electrodes. These compounds undergo electrochemical quasi-reversible reduction in dimethylsulphoxide (DMSO) and acetonitrile (MeCN). The ruthenium(I) species formed react in a very fast chemical reaction (EC mechanisms), although the rate constants of electrochemical and chemical processes are different for the arenes studied. Conditional rate constants (k) and charge transfer coefficients (a ) for the cathodic reactions were determined by rotating disk techniques, and the kinetic collection efficiency (Nk) was determined with a rotating ring-disk electrode. On the other hand, the binuclear complexes 1 and 2 are quasi-reversibly oxidized in MeCN solution in two electron steps yielding binuclear Ru(III) species, while complex 3 is partially oxidized to give a mixture of products, and complex 4 generates a very unstable species, which chemically returns to the starting reduced complex | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Sociedad Chilena de Química | |
| dc.relation | 10.4067/S0717-97072003000400015 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Journal of the Chilean Chemical Society v.48 n.4 2003 | |
| dc.subject | Ruthenium complexes | |
| dc.subject | Ring-disk voltammetry | |
| dc.subject | Conditional rate constants | |
| dc.subject | Charge transfer coefficient | |
| dc.title | ELECTROCHEMICAL BEHAVIOR OF [{(ARENE)RUCI2}2] COMPLEXES, DETERMINATION OF KINETIC PARAMETERS USING THE ROTATING RING-DISK ELECTRODE | |
