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Fixation and spontaneous dehydrogenation of methanol on a triruthenium–iridium framework: synthesis and structure of the cluster anion [HRu<sub>3</sub>Ir(CO)<sub>12</sub>(OMe)]<sup>–</sup>
Auteur(s)
Plasseraud, Laurent
Ferrand, Vincent
Date de parution
1999
In
Chemical Communications, 1999//1959-1960
Résumé
The anionic mixed-metal cluster [Ru<sub>3</sub>Ir(CO)<sub>13</sub>]<sup>–</sup><b>1</b>, found to be catalytically active in the carbonylation of methanol, reacts with methanol at 70 °C to give, with O–H activation of the substrate, the cluster anion [HRu<sub>3</sub>Ir(CO)<sub>12</sub>(OMe)]<sup>–</sup><b>2</b>, which upon prolonged reaction loses formaldehyde to give the cluster anion [H<sub>2</sub>Ru<sub>3</sub>Ir(CO)<sub>12</sub>]<sup>–</sup><b>3</b>; both anions <b>2</b> and <b>3</b> crystallise together as the double-salt [N(PPh<sub>3</sub>)<sub>2</sub>]<sub>2</sub>[HRu<sub>3</sub>Ir(CO)<sub>12</sub>(OMe)][H<sub>2</sub>Ru<sub>3</sub>Ir(CO)<sub>12</sub>] the single-crystal X-ray structure analysis of which reveals a butterfly Ru<sub>3</sub>Ir skeleton for <b>2</b> and a tetrahedral Ru<sub>3</sub>Ir skeleton for <b>3</b>.
Identifiants
Type de publication
journal article
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