Spectroscopic Studies on Diester-Dicarboxylic Acid(DEDA) -Melamine Cocrystal and Its Inclusion Complex with β-Cyclodextrin

The present work deals with the synthesis of diester-dicarboxylic acid (DEDA)-Melamine co-crystal, characterized using UV-Visible absorption, scanning electron microscope and X-ray diffraction techniques. Single crystal X-ray analysis is carried out to confirm the formation of DEDA-Melamine co-crystal. Phthalic anhydride is used as the main source for synthesising the diesterdicarboxylic acid. By desymmetrizing phthalic anhydride, diester-dicarboxylic acid is synthesised. The synthesised diesterdicarboxylic acids are used for the reaction with melamine to obtain diesterdicarboxylic acid-Melamine co-crystal. The host-guest chemistry of diesterdicarboxylic acid, Melamine and their DEDA-Melamine co-crystal with β- cyclodextrin is also explored.