Dinuclear ytterbium(iii) benzamidinate complexes with bridging S32−, Se22− and Te22− ligands: synthesis, structure and magnetic properties

Abstract

Treatment of Yb(II) complex [L₂Yb(THF)₂] (L = PhC(NSiMe₃)₂) with elemental sulfur, selenium or tellurium resulted in the isolation of a series of dinuclear Yb(III) complexes featuring side-on bound S₃²⁻ (1), Se₂²⁻ (2) or Te₂²⁻ (3) moieties, respectively. Magnetic study on these complexes revealed that 3 is a rare lanthanide telluride single-molecule magnet (SMM).