X-ray study of structural reorganization in phthalocyanine containing Langmuir-Blodgett heterostructures

Langmuir-Blodgett heterostructures containing phthalocyanine and fatty acid salt multilayers were studied by X-ray scattering using synchrotron radiation. Two structural reorganizations of the film were registered after the thermal treatment. The first phase transition took place after heating till the melting point of the fatty acid and the second one, at a higher temperature, but before the phthalocyanine melting point. Models of the molecular organization for all three film packings were suggested.