Hydrogen Activation by Benzene-Ruthenium Complexes in Aqueous Solution: Synthesis, Molecular Structure, and Intercalation of the Cluster Cation [{C₆H₆)₄Ru₄H₄]²⁺

Authors

  • Ulf Bodensieck
  • Annette Meister
  • Götz Meister
  • Gerd Rheinwald
  • Helen Stoeckli-Evans
  • Georg Süss-Fink

DOI:

https://doi.org/10.2533/chimia.1993.189

Abstract

The hydrogenation of the aqua complex [(C6H6)Ru(H2O)3]2+, prepared in situ by hydrolysis of (C6H6)2Ru2Cl4 in water, was found to lead to the tetranuclear cluster dication [(C6H6)4Ru4H4]2+ (1) which crystallizes as the dichloride from the aqueous solution. In the presence of acetate ions, however, the reaction yields the dinuclear cations [(C6H6)2Ru2H(OOCCH3)X]+ (X=OH: 2, X=Cl: 3) which crystallize as the hexafluorophosphate salts. The X-ray crystal-structure analysis of [(C6H6)4Ru4H4]Cl2 reveals the cluster dication 1 to consist of a tetrahedral ruthenium framework; the four hydrido ligands are presumably coordinated to three faces and to one edge of the Ru4 tetrahedron. The cationic complexes 1 and 2 have been found to intercalate in sodium hectorite.

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Published

1993-06-30

How to Cite

[1]
U. Bodensieck, A. Meister, G. Meister, G. Rheinwald, H. Stoeckli-Evans, G. Süss-Fink, Chimia 1993, 47, 189, DOI: 10.2533/chimia.1993.189.