Functional Naphthalene Diimides: Synthesis, Characterization and Optical Properties

Unsymmetrically substituted Naphthalene Diimides have highly attractive potential in many industrial fields due to their excellent thermal and photochemical stability, high mechanical strength, and good film ability, conductivity and optical properties. Currently, a great deal of effort has been devoted to the development of novel unsymmetrically substituted Naphthalene Diimides due to their highly favorable photochemical properties, excellent thermal and photo stabilities and photoconductive properties. In the present study, the aim is to synthesize two unsymmetrically substituted Naphthalene Diimides. The unsymmetrical Naphthalene Diimide were prepared using two-step reaction processes starting from 1,4,5,8-naphthalenetetracarboxylic diandydride. In the first step, N-substituted-1,4,5,8-napthalenetetracarboxylic-1,8- monoanhydride-4,5-monoimide were synthesized. In the final step, the unsymmetrical Naphthalene Diimide were synthesized via condensation reaction using appropriate amine in high boiling solvent under argon atmosphere. The synthetic products were characterized by FTIR, UV-VIS Absorption, Emission.