COMPLEXES CYCLOPENTADIENYLES DE L'URANIUM(IV). II. COMPLEXES TRICYCLOPENTADIENYLES D'URANIUM(IV) A CHIRALITE CENTRO-METALLEE. DIASTEREOTOPIE ET DIASTEREOISOMERIE

Article abstract of DOI:10.1016/S0022-328X(00)81191-2

The synthesis of η⁵-Cp'3UCl, η⁵-Cp-η⁵-Cp'2UCl, η⁵-Cp2-η⁵-Cp'UCl (Cp = C5H5; Cp' = substituted cyclopentadienyl) complexes and of similar complexes bridged between the two cyclopentadienyl ligands is described.Several complexes of this type have a prochiral uranium atom.The bridged complexes obtained from the bidentate dianion ^2- bear a chiral carbon and a chiral uranium atom in the same structure.The two diastereoisomeric forms have not been separated but are easily identified by NMR analysis.