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The control over aggregation pathways is a key requirement for present and future technologies, as it can provide access to a variety of sophisticated structures with unique functional properties. In this work, we demonstrate an unprecedented control over the supramolecular self-assembly of a semiconductive material, based on a naphthalenediimide core functionalized with phenyl–thiophene moieties at the imide termini, by trapping the molecules into different arrangements depending on the crystallization conditions. The control of the solvent evaporation rate enables the growth of highly elaborated hierarchical self-assembled structures: either in an energy-minimum thermodynamic state when the solvent is slowly evaporated forming needle-shaped crystals (polymorph α) or in a local energy-minimum state when the solvent is rapidly evaporated leading to the formation of nanofibers (polymorph β). The …
American Chemical Society
Publication date: 
17 Apr 2019

Mattia Zangoli, Massimo Gazzano, Filippo Monti, Lucia Maini, Denis Gentili, Andrea Liscio, Alberto Zanelli, Elisabetta Salatelli, Giuseppe Gigli, Massimo Baroncini, Francesca Di Maria

Biblio References: 
Volume: 11 Issue: 18 Pages: 16864-16871
ACS applied materials & interfaces