Discrimination between S2? and SO2? Sites in Mixed Crystal Compounds Containing Co and Co/Mo Clusters by 59Co-NMR Spectroscopy, and the Relevance for HDS Catalysis
| Autor: | Achim Müller, Erich Krickemeyer, Hartmut Bögge, Dieter Rehder |
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| Jazyk: | German<br />English<br />French |
| Rok vydání: | 1992 |
| Předmět: | |
| Zdroj: | CHIMIA, Vol 46, Iss 9 (1992) |
| Druh dokumentu: | article |
| ISSN: | 0009-4293 2673-2424 |
| Popis: | In aqueous solutions of the mixed crystal compounds with formal composition K8[Co4?xMoxS4?y(SO)y(CN)12·nH2O (x = 0–2; y = 0–2) i) there are distinct CoS, Co(SO), and Co(SO)2 sites and ii) no hetero-metal clusters are present. These results, revealed by 59Co–NMR, could principally not be disclosed by single crystal X-ray structure analysis. The NMR data also suggest a stable dinuclear cobalt-sulphur cluster in solution. The relevance for HDS catalysis is discussed. |
| Databáze: | Directory of Open Access Journals |
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