MONOLAYERS AND MULTILAYERS OF UNSUBSTITUTED COPPER PHTHALOCYANINE

Monolayers of unsubstituted copper phthalocyanine (CuPc) were prepared on a water surface by spreading a solution of CuPc in dichloromethane containing trifluoroacetic acid, and were deposited as multilayer fil ms by means of a horizontal lifting method. A preferential orientation of CuPc molecules in the films was indicated from polarized absorptio n spectra and X-ray diffraction patterns. It was shown that a CuPc mon olayer on the water surface consists of two-dimensional microcrystals.