Combining Optical Properties with Flexibility in Halogen-Substituted Benzothiazole Crystals
Nipun P. Thekkeppat, Madhumathi Lakshmipathi, Almaz S. Jalilov, Priyadip Das, Abdul Malik P. Peedikakkal, Soumyajit Ghosh
Abstract
Combining optical properties with flexibility in organic crystals may find promising applications in optical waveguides, flexible optoelectronics, etc. We describe a family of halogen-substituted benzothiazole compounds which grow with an acicular needle morphology based on a slip-stacked supramolecular assembly sustained by a series of noncovalent interactions, including halogen bonds etc. Some of them comply with necessary packing features for elasticity; therefore, bending–relaxation cycles can be repeated several times. As these compounds are fluorescent in nature, the optical properties can be gainfully combined with flexibility toward achieving a new class of crystalline materials for optical waveguides and flexible optoelectronics.