Molecular Arrangement and Thermal Properties of Bisamide Organogelators in the Solid State.

ABSTRACT: The crystal structure and phase behavior of bisamide gelators are investigated using differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy, X-ray diffraction (XRD), and molecular modeling, aiming at a better understanding of bisamide gel systems. A homologous series of bisamide model compounds (nBAs) was prepared with the (CH₂)_n spacer between the two amide groups, where n varies from 5 to 10, and with two symmetric C17 alkyl tails. With increasing spacer length, the thermal properties show a clear odd-even effect, which was characterized using our newly developed analytical model DSC_N(T). Using XRD, all studied nBA compounds turn out to have a layer-like structure. The XRD patterns of the odd BA series

SUBMITTER: Ghanbari E 

PROVIDER: S-EPMC9776524 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature