Changing supramolecular assembly of azobenzene derivatives by solvent media
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초록
내용
Fluorescent supramolecular structures fabricated via the self-assembly of photoisomerizable organic molecules continues to be the great interest in the scientific area due to their smart properties and wide-range applications. Various assembled structures such as spheres, rods, fibers or sheets can be fabricated by designing the molecules and controlling their self-assembly conditions. In this research work, a trigonal azobenzene derivative, 3tBuAz, was designated to study the morphologies and melting temperatures of the assembled structures.3t-BuAz molecules assemble into grain-like structures, rods and long fibers, depending on solvent conditions. The obtained morphologies were observed under scanning electron microscopy (SEM), OM and FOM. The melting temperatures of the respective assembled structures were also observed. The resulted microscale structures showed different melting temperatures owing to the different stacking modes and lengths of them.