Ag(I) catalyzed and uncatalyzed oxidation of dimethyl sulfoxide by ceric nitrate in nitric acid medium: A kinetic study |
| |
| Authors: | S. Rajeshwar Rao and V. Jagannadham |
| |
| Affiliation: | (1) Department of Chemistry, Osmania University, 500 007 Hyderabad, India;(2) Department of Chemistry Arts and Science College, (O.U.), 500 003 Secunderabad, India |
| |
| Abstract: | The uncatalyzed oxidation of dimethyl sulfoxide (DMSO) by Ce(IV) involves complex formation between them in nitric acid medium which yields final products. The orders in [Ce(IV)] and [DMSO] were one and fractional, respectively. With Ag(I) as catalyst, an Ag(I)-DMSO adduct is proposed. This adduct reacts with Ce(IV) bimolecularly to give a Ag(II)-DMSO adduct which finally yields the products. The rates exhibit fractional order in [Ag(I)] as well as [DMSO] and first order in [Ce(IV)].
                  (DMSO)    Ce(IV)       , .    [Ce(IV)] , [DMSO]—.  Ag(I) ,  Ag(I)–DMSO.  Ce(IV) , Ag(II)–DMSO, .  [Ag(I)], [DMSO], [Ce(IV)].
|
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
