Bis(hydroxylaminato)-mono(pentamethylcyclopentadienyl) rare-earth metal complexes†
Abstract
Salt
metathesis reactions involving the anhydrous rare-earth metal trichlorides MCl3 (M = Y, Ho, Er and Lu) and the N,N-diethylhydroxylaminato potassium salt, KONEt2 (1), and KC5Me5 result in formation of rare-earth metal hydroxylaminato complexes of the type [(C5Me5)M(μ-η1:η2-ONEt2)(η2-ONEt2)]2 (M = Y (2a), Ho (2b), Er (2c) and Lu (2d)). Compound 1 was characterised by