Options
Synthesis and molecular structure of the trinuclear ruthenium cluster cations [H<sub>3</sub>Ru<sub>3</sub>(C<sub>6</sub>H<sub>6</sub>)(C<sub>6</sub>H<sub>2</sub>Me<sub>4</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>OH}(C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)<sub>2</sub>(O)]<sup>+</sup>
Auteur(s)
Date de parution
2003-11-20
In
Inorganica Chimica Acta, 2003/355/394-398
Résumé
The trinuclear arene–ruthenium cluster cations [H<sub>3</sub>Ru<sub>3</sub>(C<sub>6</sub>H<sub>6</sub>)(C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)<sub>2</sub>(O)]<sup>+</sup> (<b>2</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>OH}(C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)<sub>2</sub>(O)]<sup>+</sup> (<b>3</b>) have been synthesised from the dinuclear precursor [H<sub>3</sub>Ru<sub>2</sub>(C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)<sub>2</sub>]<sup>+</sup> (<b>1</b>) and the mononuclear complexes [Ru(C<sub>6</sub>H<sub>6</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>OH}(H<sub>2</sub>O)<sub>3</sub>]<sup>2+</sup>, isolated and characterised as the tetrafluoroborate salts. Cations <b>2</b> and <b>3</b> are analogues of the cluster cation [H<sub>3</sub>Ru<sub>3</sub>(C<sub>6</sub>H<sub>6</sub>)(C<sub>6</sub>Me<sub>6</sub>)<sub>2</sub>(O)]<sup>+</sup> which was found to catalyse the hydrogenation of benzene to give cyclohexane under biphasic conditions (‘supramolecular cluster catalysis’). The single-crystal X-ray structure analyses of <b>2</b> and <b>3</b> have been determined. Unlike [<b>2</b>][BF<sub>4</sub>]•3H<sub>2</sub>O, [<b>3</b>][PF<sub>6</sub>]•H<sub>2</sub>O shows a dimeric structure in the solid state, thanks to hydrogen bonds between the hydroxo function of one molecule of <b>3</b>, a water molecule and the oxo cap of an other molecule of <b>3</b>.
Identifiants
Type de publication
journal article
Dossier(s) à télécharger
