TEMPLATE SYNTHESIS AND CHARACTERIZATION OF MONONUCLEAR (LA,YB), HOMOBINUCLEAR (CE, EU) AND HETEROBINUCLEAR (LA/SN) COMPLEXES WITH AN ACYCLIC LIPOPHYLIC SCHIFF BASE DERIVED FROM 2,6-DIFORMYL-4-METHYLPHENOL

摘要

New lipophylic compounds LaL(NO3). 5H(2)O(2), YbL(NO3). 2H(2)O, Ce(2)L (NO3)(2)(OH)(2) . 6H(2)O, Eu(2)L(NO3)(2)(OH)(2) . 2H(2)O . 2EtOH and LaSnMe(2)Cl(2)L(NO3). 5H(2)O [L = C38H55N3O4] have been synthesized by a template condensation and characterized by using infrared and Mossbauer spectroscopies. In the homopolynuclear compounds, the two compartments in close proximity are both occupied, while for the La/Sn compound the SnMe(2)Cl(2) was bonded by oxygen atoms out of these compartments; the Mossbauer parameters seemed to indicate a severely distorted trans octahedral geometry around the,tin atom. For the mononuclear complexes, the metal La or Yb was encapsulated in the inner N3O4 compartment. [References: 37]