RT info:eu-repo/semantics/article T1 Self-Assembly of Hollow Organic Nanotubes Driven by Arene Regioisomerism A1 Alegre-Requena, Juan V. A1 Herrera, Raquel P. A1 Díaz Díaz, David K1 gels K1 nanotubes K1 regioisomers K1 self-assembly K1 supramolecular chemistry K1 geles K1 nanotubos K1 autoensamblaje K1 química supramolecular AB Arene regioisomerism in low-molecular-weight gelators can beexploited as a tool to modulate the micro-structures of thecorresponding xerogel networks by using the three differentpossible substitution patterns ortho, meta and para. Thisaromatic regioisomer-driven strategy has been used with acholesterol-based gelator to prepare hollow self-assembledorganic nanotubes (S-ONTs) with inside and outside diametersof ca. 35 and 140 nm, respectively. Electron microscopy imagingand theoretical calculations were employed to rationalize theformation mechanism of these S-ONTs. From the three possibleregioisomers, only the ortho-disubstituted cholesteryl-basedgelator showed the optimal angle and distance betweensubstituents to afford the formation of the cyclic assembliesrequired for nanotube growth by assembling 30–40 units of thegelator. This study opens fascinating opportunities to expandthe synthesis of controllable and unique microstructures bymodulating geometrical parameters through aromatic regioisomers. PB Wiley YR 2020 FD 2020 LK http://riull.ull.es/xmlui/handle/915/21343 UL http://riull.ull.es/xmlui/handle/915/21343 LA en NO Deutsche Forschungsgemeinschaft DS Repositorio institucional de la Universidad de La Laguna RD 28-mar-2024