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Updated: Mar 20, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
"Bottom-up" self-assembly and "cold crystallization" of butterfly shaped tetrabenzofluorene molecules
Srinivasan Sampath1, A A Boopathi2, A B Mandal3
1Polymer Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India. sampathsrinivasan@yahoo.com ssrinivasan@clri.res.in abmandal@hotmail.com, abmandal@clri.res.in and Academy of Scientific and Innovative Research (AcSIR), Rafi Marg, New Delhi, 110001, India.
Abstract:
Butterfly-shaped tetrabenzo[a,c,g,i]fluorene (TBF)-based molecules (1 and 2) were designed, synthesized and well characterized using various spectroscopic techniques. The single crystal X-ray structure of 1 shows the presence of intermolecular 3-D π-π stacking interaction and unprecedented "cold crystallization" in polycyclic aromatic molecules. We report for the first time, the "bottom-up" self-assembly of TBF based organic molecules. The supramolecular studies reveal the formation of vesicles and cuboid-shaped nanocrystals in THF-water and toluene solution, respectively.

