METHANOL OXIDATION CATALYZED WITH A GIANT PALLADIUM CLUSTER

Authors
LASTOVYAK YV GLADII SL PASICHNYK PI STARCHEVSKII MK PAZDERSKII YA VARGAFTIK MN MOISEEV II
Citation
Yv. Lastovyak et al., METHANOL OXIDATION CATALYZED WITH A GIANT PALLADIUM CLUSTER, Kinetics and catalysis, 35(4), 1994, pp. 512-515
Citations number
14
Categorie Soggetti
Chemistry Physical
Journal title
Kinetics and catalysis → ACNP
ISSN journal
00231584
Volume
35
Issue
4
Year of publication
1994
Pages
512 - 515
Database
ISI
SICI code
0023-1584(1994)35:4<512:MOCWAG>2.0.ZU;2-E
Abstract
The kinetics of methanol oxidation to methyl formate by oxygen is stud ied over a giant palladium cluster with an idealized formula Pd561Phen 60(OAc)180. The rate of methyl formate formation is proportional to th e concentrations of the cluster and methanol. The rate dependence on t he oxygen concentration is described by the Michaelis-Menten equation. The kinetic data obtained and the values of kinetic isotopic effects k(CH3OH)/k(CH3OD) = 0.98 and k(CH3OH)/k(CD3OD) = 5.9 are in agreement with the reaction mechanism including, as a rate-determining step, the C-H bond breaking in the methanol molecule coordinated by the cluster .