Heteroleptic t-butyl lanthanoid complexes: synthesis and X-ray crystal structure of monomeric bis(cyclopentadienyl)(t-butyl)lutetium tetrahydrofuranate
Abstract
(C5H5)Lu(But), synthesized from [(C5H5)2Lu-Cl]2 and ButLi in pentane–tetrahydrofuran at –78°C, crystallizes from toluene as a monomeric tetrahydrofuran solvate which contains a 2·37 Å Lu–C σ bond and a short (2·31 Å) Lu–O distance; the analogous erbium complex is prepared similarly but, in the ytterbium case, the reaction generates (C5H5)2 Yb.