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An asymmetric trihydrido-bridged arene ruthenium complex
Auteur(s)
Date de parution
2004
In
Inorganic Chemistry Communications, Elsevier, 2004/7/2/232-234
Résumé
Reaction of [Ru(η<sup>6</sup>-indane)(H<sub>2</sub>O)<sub>3</sub>]<sup>2+</sup> and [Ru(η<sup>6</sup>-C<sub>6</sub>Me<sub>6</sub>)(H<sub>2</sub>O)<sub>3</sub>]<sup>2+</sup> with NaBH<sub>4</sub> in water gives a mixture of three triple hydrido-bridged arene ruthenium cations [(η<sup>6</sup>-arene)Ru(μ-H)<sub>3</sub>Ru(η<sup>6</sup>-arene′)]<sup>+</sup> (arene=indane and hexamethylbenzene; arene′=indane and hexamethylbenzene). After treatment with NaBF<sub>4</sub>, the three complexes are separated by column chromatography and the asymmetrical [(η<sup>6</sup>-indane)Ru(μ-H)<sub>3</sub>Ru(η<sup>6</sup>-C<sub>6</sub>Me<sub>6</sub>)][BF<sub>4</sub>] (cation <b>1a</b>) can be isolated in moderate yield. <b>1a</b> decomposes in solution to give the corresponding hydroxo-bridged complex [(η<sup>6</sup>-indane)Ru(μ-OH)<sub>3</sub>Ru(η<sup>6</sup>-C<sub>6</sub>Me<sub>6</sub>)]<sup>+</sup> (<b>2</b>) with retention of the asymmetrical geometry as shown by single-crystal X-ray structure analysis. The indane ligand adopts an envelope conformation toward the ruthenium atom.
Identifiants
Type de publication
journal article
