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

Autor: Gaye Mohamed, Sall Abdou Salam, Vidali Maurizio, Umberto Russo, Sarr Oumar
Rok vydání: 1995
Předmět:
Zdroj: Polyhedron. 14:655-661
ISSN: 0277-5387
Popis: New lipophylic compounds LaL(NO3)·5H2O, YbL(NO3)·2H2O, Ce2L (NO3)2(OH)2·6H2O, Eu2L(NO3)2(OH)2·2H2O·2EtOH and LaSnMe2Cl2L(NO3)·5H2O [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 SnMe2Cl2 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.
Databáze: OpenAIRE