Langmuir Monolayers and Langmuir-Blodgett Films of Mixtures of Polyaniline and a Ruthenium Complex, mer[RuCl 3 (dppb)(py)

Abstract

Strong interaction at the molecular level has been observed in Langmuir monolayers of polyaniline and a biphosphinic ruthenium complex, named Rupy. The area per molecule and maximum surface potential for the mixed films varied non linearly with the relative concentration of Rupy. Y-type Langmuir-Blodgett films have been deposited from the mixtures. Upon increasing the amount of Rupy, the LB films become increasingly oxidized, causing a blue shift in the peak attributed to the quinoid species of the PANI UV-visible spectra.