Synthesis and molecular structure of the trinuclear ruthenium cluster cations [H3Ru3{C6H5(CH2)2OC(O)C6H5}(C6Me6)2(O)]+ and [H3Ru3{C6H5(CH2)2OC(O)(CH2)3C6H5}(C6Me6)2(O)]+
Author(s)
Date issued
2004
In
Inorg. Chim. Acta
Vol
12
No
357
From page
3437
To page
3442
Subjects
trinuclear ruthenium arene cluster cation prepn structure attempted hydrogenation ruthenium arene chloro dimeric complex prepn reaction diruthenium complex dienyl ester deriv prepn reaction ruthenium trichloride crystal structure ruthenium arene cationic trinuclear cluster complex mol structure ruthenium arene cationic trinuclear cluster complex
Abstract
Benzoic acid 2-cyclohexa-1,4-dienyl Et ester (1), and 4-phenylbutyric acid 2-cyclohexa-1,4-dienyl Et ester (2) are prepd. by reacting, resp., benzoic acid and 4-phenylbutyric acid with 2-cyclohexa-1,4-dienyl ethanol. These dienyl ester derivs. react with RuCl3·nH2O in refluxing ethanol to afford in good yield [Ru{C6H5(CH2)2OC(O)C6H5}Cl2]2 (3), and [Ru{C6H5(CH2)2OC(O)(CH2)3C6H5}Cl2]2 (4). Trinuclear arene-ruthenium cluster cations [H3Ru3{C6H5(CH2)2OC(O)C6H5}(C6Me6)2(O)]+ (5), and [H3Ru3{C6H5(CH2)2OC(O)(CH2)3C6H5}(C6Me6)2(O)]+ (6) are synthesized from the dinuclear precursor [H3Ru2(C6Me6)2]+, and the mononuclear complexes [Ru{C6H5(CH2)2OC(O)C6H5}(H2O)3]2+ and [Ru{C6H5(CH2)2OC(O)(CH2)3C6H5}(H2O)3]2+, accessible, resp., from 3 and 4 in aq. soln. The water-sol. trinuclear cluster cations 5 and 6 possess a Ph substituent attached to their side-arm which can act as a substrate for hydrogenation. The single-crystal X-ray structure analyses of [5][PF6], and [6][PF6] have been detd. [on SciFinder(R)]
Publication type
journal article