ELECTRON-TRANSFER KINETICS AND MECHANISM OF THE REDUCTION OF OCTACYANOMETALLATES(IV) (M=MO, W) BY HYDROXIDE ION IN AQUEOUS-SOLUTION

Authors
BOGDANOV M GRYBOS R SAMOTUS A BOGOLITSYN K
Citation
M. Bogdanov et al., ELECTRON-TRANSFER KINETICS AND MECHANISM OF THE REDUCTION OF OCTACYANOMETALLATES(IV) (M=MO, W) BY HYDROXIDE ION IN AQUEOUS-SOLUTION, Transition metal chemistry, 18(6), 1993, pp. 599-603
Citations number
37
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Transition metal chemistry
ISSN journal
03404285 → ACNP
Volume
18
Issue
6
Year of publication
1993
Pages
599 - 603
Database
ISI
SICI code
0340-4285(1993)18:6<599:EKAMOT>2.0.ZU;2-E
Abstract
The kinetics of the reduction of octacyanometallates(IV) in alkaline a queous medium have been studied spectrophotometrically. The experiment al results are in agreement with following rate law: M(CN)(8)(3-)]/dt= k(obs)[M(CN)(8)(3-)](2)[OH-][Na+] where k(obs)=4.1x10(-2)M(-3)s(-1) (M o) and 4.0x10(-4)M(-3)s(-1)(W). The rate data were used to calculate t he thermodynamic activation parameters Delta H-double dagger and Delta S-double dagger . A mechanism of the reaction is discussed.