EPR STUDY OF INPLANE ANISOTROPY IN THE LB FILMS OF A CU(II)[TETRA ALKOXY CARBONYL] PHTHALOCYANINE DEPOSITED ON MYLAR SHEETS

Electron paramagnetic resonance spectroscopy has been applied to obtai n information on the in-plane anisotropy of Cu(II) [tetrakis-(3,3-dime thyl-1-butoxy carbonyl)] phthalocyanine (CuPcBC) molecules deposited a s a Langmuir-Blodgett film on a biaxially oriented mylar substrate, We have found that the in-plane distribution of orientations of the film molecules depends on the angle between the asis of preferential order identified in the substrate and the dipping direction, The in-plane o rientational anisotropy of the material in the film is mainly due to t he ability of the substrate to induce oriented growth of CuPcBC molecu les which reflects its surface order.