Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, International Journal of Molecular Sciences called Structure of nanotubes self-assembled from a monoamide organogelator, Author is Zapien-Castillo, Samuel; Diaz-Zavala, Nancy P.; Melo-Banda, Jose A.; Schwaller, Duncan; Lamps, Jean-Philippe; Schmutz, Marc; Combet, Jerome; Mesini, Philippe J., which mentions a compound: 2834-05-1, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2, HPLC of Formula: 2834-05-1.
Some organic compounds are known to self-assemble into nanotubes in solutions, but the packing of the mols. into the walls of the tubes is known only in a very few cases. Herein, we study two compounds forming nanotubes in alkanes. They bear a secondary alkanamide chain linked to a benzoic acid Pr ester (HUB-3) or to a Bu ester (HUB-4). They gel alkanes for concentrations above 0.2 weight%. The structures of these gels, studied by freeze fracture electron microscopy, exhibit nanotubes: for HUB-3 their external diameters are polydisperse with a mean value of 33.3 nm; for HUB-4, they are less disperse with a mean value of 25.6 nm. The structure of the gel was investigated by small- and wide-angle X-ray scattering. The evolution of the intensities show that the tubes are metastable and transit slowly toward crystals. The intensities of the tubes of HUB-4 feature up to six oscillations. The shape of the intensities proves the tubular structure of the aggregates, and gives a measurement of 20.6 nm for the outer diameters and 11.0 nm for the inner diameters It also shows that the electron d. in the wall of the tubes is heterogeneous and is well described by a model with three layers.
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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI