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Supramolecular cluster catalysis: facts and problems |
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| Authors: | Georg Sü ss-Fink,Bruno Therrien,Mathieu Tschan,Thomas R Ward,Gabor Laurenczy |
| Affiliation: | a Institut de Chimie, Université de Neuchâtel, Case postale 2, CH-2007 Neuchâtel, Switzerland b Institut de Microtechnique, Université de Neuchâtel, Case postale 2, CH-2007 Neuchâtel, Switzerland c Institut de Chimie Moléculaire et Biologique, Ecole Polytechnique Fédérale de Lausanne, BCH, CH-1015 Lausanne, Switzerland |
| Abstract: | By checking the chemistry underlying the concept of “supramolecular cluster catalysis” we identified two major errors in our 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 we had ascribed to a reaction with water in the presence of ethylbenzene is simply an oxidation reaction which occurs in the presence of air. (2) The higher catalytic activity observed with ethylbenzene, which we had erroneously attributed to the “open” cluster cation [H2Ru3(C6H6)(C6Me6)2(O)(OH)]+ (2), was due to the formation of RuO2 · nH2O, caused by a hydroperoxide contamination present in ethylbenzene. |
| Keywords: | Catalysis Ruthenium Clusters Hydrogenation benzene |
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