Polymer and Materials Science
Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Hydrated ferric oxides prepared in the presence of acetate ions show substantially higher catalytic activity over that of ordinary hydrated ferric oxide (for the polymerization of propylene oxide). The maximum in activity is reached at a ratio of acetate to iron of 2. It is suggested that the active species are formed through the trinuclear μ-acetato-ferric complex. This would imply that the insertion mechanism requires a particular geometry with probably a minimum of three coordination centers.
Type of Medium: