Borane-osmium cluster chemistry

Publisher Website
Google Scholar
Abstract
Triosmium carbonyl borylidyne clusters (p-H),Os,(CO),(p,-BCO), I, (p-H),- Os,(CO),(PPh,)(p,-BCO), II, and the boroxin supported triosmium oxomethylidyne cluster system ((p-H),0s,(CO),(p3-CO)),(B303), III, are produced in the hydroboration of the unsaturated clusters (~-H),OS,(CO),~, and (p-H)20%(CO),(PPh3). Reactions of these complexes are described. Investigations include kinetic studies of the displacement of the unique carbonyl in I and 11 by PMe,; the conversion of I and II, into boron containing analogues of vinylidene and alkyne clusters through reactions with THFBH, and boron halides; and the thermal conversion of I into osmaboride clusters. Reactions of III with boron halides to form triosmium chloro and bromo- methylidene clusters are described. Friedel-Crafts type reactions of III in the presence of BF, to form triosmium phenyl, pentaboranyl and icosacarboranylmethylidyne clusters are also discussed.
Keywords

This publication has 0 references indexed in Scilit: