TITLE:
Coordination Interaction between Rare Earth and/or Transition Metal Centers and Thiophene Series Oligomer Derivatives in Ultrathin Langmuir-Blodgett Films
AUTHORS:
H. V. Grushevskaya, I. V. Lipnevich, T. I. Orekhovskaya
KEYWORDS:
Langmuir Monolayer; Self-Organization; Metal-Containing Ultrathin Langmuir-Blodgett Film
JOURNAL NAME:
Journal of Modern Physics,
Vol.4 No.12C,
December
31,
2013
ABSTRACT:
It has been shown by thermodynamic and electro-chemical methods that coordination interactions are involved in the process of incorporation of rare-earth elements and/or Fe into Langmuir monolayers of oligomer with alkyl fragment. A coordination mechanism, which is responsible for self-organization of octahedral Fe(II)-complexes of nano-cyclic ligands obtained from oligomer of thiophene pyrrole series derivatives in compressed Langmuir monolayers has been proposed. It has been established that a coordinational-polymeric hexagonal network of nano-cyclic ligands with metal centers is formed at the phase transition when compressing the Langmuir monolayers of thiophene pyrrole series oligomer with alkyl fragment on surface of subphase with rare-earth (Sm, Er, Ce) and/or Fe ions.