Mehrfachbindungen zwischen Hauptgruppenelementen und Übergangsmetallen, LXXIX. / Multiple Bonds between Main Group Elements and Transition Metals, LXXIX
| Autor: | Wolfgang A. Herrmann, Paul Kiprof, Josef G. Kuchler, Eberhardt Herdtweck, Ian A. Degnan |
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| Rok vydání: | 1990 |
| Předmět: | |
| Zdroj: | Zeitschrift für Naturforschung B. 45:937-942 |
| ISSN: | 1865-7117 0932-0776 |
| DOI: | 10.1515/znb-1990-0703 |
| Popis: | Trimethylstannyl perrhenate, (CH3)3SnOReO3 (2), synthesized from dirheniumheptoxide and tetramethyltin, has a zigzag-chain crystal structure. This structure originates from catenation of individual molecules via the tin atom to a perrhenate group of another molecule. The tin atom thus forms the center of a trigonal-bipyramidal coordination geometry, with two oxygen atoms adopting apical positions while three methyl groups define the equatorial plane. The Re—O—Sn bonds alternate between linear and slightly bent. The zigzag-aggregation of the chain-structure results from the tetrahedral [ReO4] subunits. Ionic contributions to the Re—O—Sn bonds are not evident from the structural data, nor do data obtained from solution indicate any ionization such as [(CH3)3Sn]+[ReO4]⁻. Following the synthesis of the title compound 2, the heavier congener triphenylplumbyl perrhenate (5) has been synthesized from Re2O7 and Pb(C6H5)4. |
| Databáze: | OpenAIRE |
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