Synthesis and Crystal Structure of Lanthanide Schiff-Base Complexes (3,5-t-Bu2-2-OC6H2CH=N-8-C9H6N)3Ln (Ln=Eu, Yb)

The reaction of anhydrous LnCl(3) (Ln = Eu, Yb) with [NaL(THF)](2) (1) (L = 3,5-t-Bu-2-2-OC6H2CH=N-8-C9H6N) in a molar ratio of 2 3 in THF at room temperature afforded the homoleptic Schiff base lanthanide complexes LnL(3) [Ln=Eu (2), Yb (3)] These complexes were characterized by elemental analysis, IR spectra and X-ray structural determination The crystal data of complex 2 are triclinic, P (1) over bar space group, a=128670(14) nm, b=1 32775(14) nm, c=2 3254(2) nm, alpha=93 435(2)degrees, beta=96 487(2)degrees, gamma=112 692(2)degrees The crystal data of complex 3 are monoclinic, P2(1)/c space group, a=1 72004(9) nm, b=1 81911(9) nm, c=2 85093(15) nm, beta=106 376(1)degrees