Two crystalline modifications of RuO4 |
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| Authors: | Martin Pley |
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| Institution: | Institut für Reine und Angewandte Chemie, Universität Oldenburg, P.O. Box 2503, 26111 Oldenburg, Germany |
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| Abstract: | RuO4 was prepared by oxidation of elemental ruthenium. Two different modifications were obtained and investigated by X-ray single crystal diffraction. RuO4-I has cubic symmetry  , and two independent tetrahedral molecules are present in the unit cell. Within the standard uncertainties in both molecules the distances Ru-O are 1.695 Å. The second modification, RuO4-II, is monoclinic  and isotypic with OsO4. There is one independent molecule in the unit cell, which shows distances Ru-O of 1.697 and 1.701 Å, respectively. |
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| Keywords: | Solid state structures Molecular structures Ruthenium Oxides |
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