Functionalizable Schiff base complexes of lanthanum. Synthesis and crystal structures of [La2L4(thf)2(µ-Cl)2] and [La(L′)2(HL′)Cl][HL =N-(2,4,6-trimethylphenyl)salicylideneimine, HL′=N-(2-dimethylaminoethyl)-salicylideneimine, and thf = tetrahydrofuran]

Abstract

The reaction of [{LaCl₃(thf)}_n](thf = tetrahydrofuran) under anhydrous conditions with the sodium salt of a bi- or tri-dentate Schiff base derived from salicylaldehyde and 2,4,6-trimethylaniline [HL =N-(2,4,6-trimethylphenyl)salicylideneimine] or N,N-dimethylethylenediamine [HL′=N-(2-dimethylaminoethyl)salicylideneimine] led to the isolation of the corresponding monochloro derivatives, [La₂L₄(thf)₂(µ-Cl)₂] and [La(L′)₂(HL′)Cl]. Their structures have been elucidated by X-ray crystallography.