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Half-sandwich and mixed-ring uranium complexes |
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| Authors: | Jean-Claude Berthet Jean-Francois Le Mar chal and Michel Ephritikhine |
| Institution: | Service de Chimie Moléculaire, Unité de Recherche Associée au CNRS 331, Commissariat à l'Energie Atomique, Centre d'Etudes de Saclay, 91191 Gif sur Yvette France |
| Abstract: | The monocyclooctatetraene uranium complex U(COT)(I)2(THF)2] (COT=η-C8H8; THF=tetrahydrofuran), isolated from the reaction of bis(cyclooctatetraene)uranium with iodine, is a precursor for the synthesis of the alkyl derivatives U(COT)(CH2Ph)2i (HMPA) 2], U(COT)(CH2SiMe3)2(HMPA)] (HMPA=hexamethyl phosphorous triamide) and U(COT)CH2SiMe3)3] Li(THF)3] and of the mixed-ring compounds U(COT)(η-C5R5)(I)] (R=H or Me). The last were used to prepare the amide and alkyl complexes U(COT)(η-C5H5)(N{SiMe3}2)] and U(COT)(η-C5Me5)(CH2SiMe3)]. |
| Keywords: | Uranium Cyclooctatetraene Half-sandwiches Mixed-ring complexes |
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