Synthesis and Characterization of Tris(alkoxy) Yttrium and Scandium Complexes Coordinated by Schiff-Base Ligands

The reactions of tris(alkyl) complexes Ln(CH2SiMe3)3(THF)2 (Ln = Sc, Y) with an equimolar amount of (2,4-di-tert-butyl)-6-{[(2-methoxy-5-methylphenyl)imino]methyl}phenol (LOH), regardless of the molar ratio of the reagents, proceed with protonolysis of all Ln–C bonds and afford tris(phenolate) complexes (LO)3Ln. The molecular structure of (LO)3Y was established by single-crystal X-ray diffraction.