Lanthanide(II) Complexes of the Dihydrotriazinido Ligand [N{C(Ph)=N}2C(tBu)Ph]

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) Vol. 634; no. 8; pp. 1373 - 1377
• Main Authors: Hitchcock, Peter B., Khvostov, Alexei V., Lappert, Michael F., Protchenko, Andrey V.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.07.2008; WILEY‐VCH Verlag
• Subjects: Amido ligands; Crystal structures; Samarium; Ytterbium
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.200800089

The potassium dihydrotriazinide K(LPh,tBu) (1) was obtained by a metal exchange route from [Li(LPh,tBu)(THF)3] and KOtBu (LPh,tBu = [N{C(Ph)=N}2C(tBu)Ph]). Reaction of 1 with 1 or 0.5 equivalents of SmI2(thf)2 yielded the monosubstituted SmII complex [Sm(LPh,tBu)I(THF)4] (2) or the disubstituted [Sm(LPh,tBu)2(THF)2] (3), respectively. Attempted synthesis of a heteroleptic SmII amido‐alkyl complex by the reaction of 2 with KCH2Ph produced compound 3 due to ligand redistribution. The YbII bis(dihydrotriazinide) [Yb(LPh,tBu)2(THF)2] (4) was isolated from the 1:1 reaction of YbI2(THF)2 and 1. Molecular structures of the crystalline compounds 2, 3·2C6H6 and 4·PhMe were determined by X‐ray crystallography.