Supramolecular cluster catalysis: facts and problems
Author(s)
Vieille-Petit, Ludovic
Tschan, Mathieu
Romakh, Vladimir B.
Ward, Thomas R.
Dadras, Massoud
Laurenczy, Gabor
Date issued
2004
In
J. Organomet. Chem.
Vol
8
No
689
From page
1362
To page
1369
Subjects
ruthenium benzene cluster supramol biphasic catalysis hydrogenation benzene benzenoid oxidn ruthenium benzene hydrido oxo cluster ruthenium oxide hydrate cocatalysis ruthenium cluster arene hydrogenation hydroperoxide contaminant ethylbenzene reaction ruthenium cluster hydrogenation catalyst
Abstract
By checking the chem. underlying the concept of supramol. cluster catalysis the authors identified two major errors in their publications related to this topic, which are essentially due to contamination problems. (1) The conversion of the closed cluster cation [H3Ru3(C6H6)(C6Me6)2(O)]+ (1) into the open cluster cation [H2Ru3(C6H6)(C6Me6)2(O)(OH)]+ (2), which the authors had ascribed to a reaction with H2O in the presence of ethylbenzene is simply an oxidn. reaction which occurs in the presence of air. (2) The higher catalytic activity obsd. with ethylbenzene, which the authors had erroneously attributed to the open cluster cation 2, was due to the formation of RuO2·nH2O, caused by a hydroperoxide contamination present in ethylbenzene. [on SciFinder(R)]
Publication type
journal article