The structure of some Langmuir-Blodgett films. Part I. Substituted phthalocyanines

Abstract

Electron diffraction and high-resolution electron microscopy has been used to investigate the structure of Langmuir-Blodgett films of tetra-t-butyl copper phthalocyanine and its lead analogue. Both films were shown to consist of islands of ordered structure embedded in disordered material. Electron diffraction and lattice imaging of the ordered regions showed that the copper derivative had the phthalocyanine molecular plane inclined normal to the substrate. It was inferred that the lead derivative had the phthalocyanine plane parallel to the substrate.