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Synthesis and molecular structure of trinuclear mixed-metal cluster cations containing arene and hydrido ligands
Auteur(s)
Date de parution
2006
In
Inorganica Chimica Acta, Elsevier, 2006/359/3/907-911
Résumé
The mixed-metal trinuclear cluster cations [H<sub>3</sub>Ru<sub>2</sub>(C<sub>6</sub>Me<sub>6</sub>)2Os(C<sub>6</sub>H<sub>6</sub>)(O)]<sup>+</sup> (<b>1</b>), [H<sub>3</sub>Ru<sub>2</sub> (1,2,4,5-C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)2Os(p-MeC<sub>6</sub>H<sub>4</sub><sup>i</sup>Pr)(O)]<sup>+</sup> (<b>2</b>) and [H<sub>3</sub>Ru<sub>2</sub> (1,2,4,5-C<sub>6</sub>H<sub>2</sub>Me<sub>4</sub>)2Os(C<sub>6</sub>H<sub>6</sub>)(O)]<sup>+</sup> (<b>3</b>) have been synthesised from the corresponding dinuclear precursors [H<sub>3</sub>Ru<sub>2</sub>(arene)<sub>2</sub>]<sup>+</sup> and the corresponding mononuclear complexes [Os(arene)(H<sub>2</sub>O) <sub>3</sub>]<sup>2+</sup>, isolated and characterised as the tetrafluoroborate and hexafluorophosphate salts. The cations <b>1</b>, <b>2</b> and <b>3</b> are heteronuclear 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> that possesses a homonuclear metallic core. The single-crystal X-ray structure analyses of [<b>1</b>][BF<sub>4</sub>], [<b>2</b>][PF<sub>6</sub>] and [<b>3</b>][PF<sub>6</sub>] reveal an equiangular metal triangle despite the presence of an osmium atom in the metallic core.
Identifiants
Type de publication
journal article
