Synthesis of a trinuclear cation [H3Ru3(Fc-arene)(C6Me6)2(O)]+ containing a ferrocenyl group tethered to an arene ligand
Author(s)
Vieille-Petit, Ludovic
Unternahrer, Sabine
Date issued
2003
In
Inorg. Chim. Acta
No
355
From page
335
To page
339
Subjects
triruthenium phenethyl ferrocenecarboxylate cationic cluster prepn structure hydrogenation catalyst ferrocene carboxylic acid cyclohexadienylethyl ester prepn reaction ruthenium trichloride diruthenium ferrocenyl contg arene complex prepn reactivity ruthenium phosphine chloro phenethyl ferrocenecarboxylate complex prepn structure benzene trinuclear ruthenium cluster catalyzed hydrogenation crystal structure ruthenium mononuclear trinuclear phenethyl ferrocenecarboxylate complex mol structure ruthenium mononuclear trinuclear phenethyl ferrocenecarboxylate complex
Abstract
Ferrocene carboxylic acid 2-cyclohexa-1,4-dienyl-Et ester (1) is prepd. from ferrocene carboxylic acid and 2-cyclohexa-1,4-dienyl-ethanol. This diene reacts with RuCl3·nH2O in refluxing ethanol to afford quant. [Ru(Fc-arene)Cl2]2 (2) (Fc-arene = ferrocene carboxylic acid phenethyl ester). Dinuclear complex 2 reacts with triphenylphosphine to give the mononuclear complex [Ru(Fc-arene)(PPh3)Cl2] (3). Trinuclear arene-ruthenium cluster cation [H3Ru3(Fc-arene)(C6Me6)2(O)]+ (4) is synthesized from the dinuclear precursor [H3Ru2(C6Me6)2]+ and the mononuclear complex [Ru(Fc-arene)(H2O)3]2+, accessible from 2 in aq. soln. Water-sol. trinuclear cluster cation 4 catalyzes the hydrogenation of benzene to give cyclohexane under biphasic conditions. The structures of 3 and 4 were established via x-ray crystallog. [on SciFinder(R)]
Publication type
journal article