Synthesis of cationic uranium compounds by protonolysis of amide precursors: cyclopentadienyl and cyclooctatetraene complexes

Abstract

The cationic organouranium(IV) compounds [U(η-C₅H₅)₃(thf)]BPh₄(thf = tetrahydrofuran)1, [U(η-C₅Me₅)(NEt₂)₂(thf)₂]BPh₄2, [U(η-C₅R₅)₂(NEt₂)(thf)]BPh₄(R = H 3 or Me 4), [U(η-C₅Me₅)₂(NMe₂)(thf)]BPh₄5, [U(η-C₈H₈)(NEt₂)(thf)₂]BPh₄6, [U(η-C₅R₅)(η-C₈H₈)(thf)₂]BPh₄(R = H 7 or Me 8) have been synthesized from the neutral amide precursors by protonolysis of the U-NR₂(R = Et or Me) bond with NHEt₃BPh₄; the crystal structures of 2 and 8 have been determined.