Synthese und Molekülstruktur von [Li(THF)4][{(CO)4Mo}2(μ-PPh2)(μ-PPh2PPh2)]: Die erste Verbindung mit einem 1,3-Dimetalla-cyclopentaphosphan-Gerüst |
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Authors: | Olaf Kühl Steffen Blaurock Evamarie Hey-Hawkins |
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Abstract: | Synthesis and Molecular Structure of Li(THF)4]{(CO)4Mo}2(μ-PPh2)(μ-PPh2PPh2)]: The First Compound with an 1,3-Dimetalla-cyclopentaphosphane Ring Mo(CO)4(NBD)] (NBD = norbornadiene) reacts with LiPPh2 and PPh2PPh2 in THF at –80 °C to give Li(THF)4]{(CO)4Mo}2(μ-PPh2)(μ-PPh2PPh2)] ( 1 ). 1 exhibits an A2X coupling pattern in the 31P NMR spectrum. A crystal structure determination showed the presence of bridging phosphanido (PPh2) and diphosphane ligands (PPh2PPh2). The central Mo2P3 five-membered ring adopts a half-chair conformation and thus resembles an inorganic cyclopentane. |
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Keywords: | Molybdenum Diphenylphosphanide Tetraphenyldiphosphane Crystal Structure |
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