Synthesis and Crystal Structure of Complexes of Lanthanide Picrates With N,N ′-Dimethyl-N,N ′-Diphenyl-1,2-PhenylenediOxydiacetamide

Abstract

Lanthanide picrate complexes with the ligand N,N'-dimethyl-N,N'-diphenyl-1,2-phenylenedioxydiacetamide (L) [Ln(Pic)3L] (Ln=La,Gd,Er,Y) have been prepared in nonaqueous medium and characterized by elemental analysis, IR and 1H spectra. The Gd(III) complex [Gd(Pic)3L]·3CH3CN is triclinic, space group P&1macr;, with a=14.292(1), b=14.967(2), c=16.571(2)Å, α=97.855(9), γ=113.070(9)°, ν=28706(6)Å3, D c=1.584g/cm3 for Z=2. The structure was refined to R=0.0318 based on 8409 observed reflections.