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Synthesis and molecular structure of the trinuclear ruthenium cluster cations [H<sub>3</sub>Ru<sub>3</sub>{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)C<sub>6</sub>H<sub>5</sub>}(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>(O)]<sup>+</sup> and [H<sub>3</sub>Ru<sub>3</sub>{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)(CH<sub>2</sub>)<sub>3</sub>C<sub>6</sub>H<sub>5</sub>}(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>(O)]<sup>+</sup>
Auteur(s)
Date de parution
2004
In
Inorganica Chimica Acta, 2004/357/3437-3442
Résumé
Benzoic acid 2-cyclohexa-1,4-dienyl ethyl ester (<b>1</b>), and 4-phenylbutyric acid 2-cyclohexa-1,4-dienyl ethyl ester (<b>2</b>) are prepared by reacting, respectively, benzoic acid and 4-phenylbutyric acid with 2-cyclohexa-1,4-dienyl ethanol. These dienyl ester derivatives react with RuCl<sub>3</sub>• <i>n</i> H<sub>2</sub>O in refluxing ethanol to afford in good yield [Ru{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)C<sub>6</sub>H<sub>5</sub>}Cl<sub>2</sub>] <sub>2</sub> (<b>3</b>), and [Ru{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)(CH<sub>2</sub>)<sub>3</sub>C<sub>6</sub>H<sub>5</sub>}Cl<sub>2</sub>]<sub>2</sub> (<b>4</b>). The trinuclear arene–ruthenium cluster cations [H<sub>3</sub>Ru<sub>3</sub>{C<sub>6</sub>H<sub>5</sub> (CH<sub>2</sub>)<sub>2</sub>OC(O)C<sub>6</sub>H<sub>5</sub>}(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>(O)]<sup>+</sup> (<b>5</b>), and [H<sub>3</sub>Ru<sub>3</sub>{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)(CH<sub>2</sub>)<sub>3</sub>C<sub>6</sub>H<sub>5</sub>}(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>(O)]<sup>+</sup> (<b>6</b>) are synthesised from the dinuclear precursor [H<sub>3</sub>Ru<sub>2</sub>(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>]<sup>+</sup>, and the mononuclear complexes [Ru{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)C<sub>6</sub>H<sub>5</sub>}(H<sub>2</sub>O)<sub>3</sub>]<sup>2+</sup> and [Ru{C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>2</sub>OC(O)(CH<sub>2</sub>)<sub>3</sub>C<sub>6</sub>H<sub>5</sub>}(H<sub>2</sub>O)<sub>3</sub>]<sup>2+</sup>, accessible, respectively, from <b>3</b> and <b>4</b> in aqueous solution. The water-soluble trinuclear cluster cations <b>5</b>, and <b>6</b> possess a phenyl substituent attach to their side-arm which can act as a substrate for hydrogenation. The single-crystal X-ray structure analyses of [<b>5</b>][PF<sub>6</sub>], and [<b>6</b>][PF<sub>6</sub>] have been determined.
Identifiants
Type de publication
journal article
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