Babu, Sukumaran Santhosh; Praveen, Vakayil K.; Kartha, Kalathil K.; Mahesh, Sankarapillai; Ajayaghosh, Ayyappanpillai published the artcile< Effect of the Bulkiness of the End Functional Amide Groups on the Optical, Gelation, and Morphological Properties of Oligo(p-phenylenevinylene) π-Gelators>, Formula: C19H34O2, the main research area is bulkiness amide group optical gelation morphol oligophenylenevinylene gelator; gels; hydrogen bonds; phenylenevinylenes; pi interactions; self-assembly.
Herein, we describe the role of end functional groups in the self-assembly of amide-functionalized oligo(p-phenylenevinylene) (OPV) gelators with different end-groups. The interplay between hydrogen-bonding and π-stacking interactions was controlled by the bulkiness of the end functional groups, thereby resulting in aggregates of different types, which led to the gelation of a wide range of solvents. The variable-temperature UV/Vis absorption and fluorescence spectroscopic features of gelators with small end-groups revealed the formation of 1D H-type aggregates in CHCl3. However, under fast cooling in toluene, 1D H-type aggregates were formed, whereas slow cooling resulted in 2D H-type aggregates. OPV amide with bulky dendritic end-group formed hydrogen-bonded random aggregates in toluene and a morphol. transition from vesicles into fibrous aggregates was observed in THF. Interestingly, the presence of bulky end-group enhanced fluorescence in the xerogel state and aggregation in polar solvents. The difference between the aggregation properties of OPV amides with small and bulky end-groups allowed the preparation of self-assembled structures with distinct morphol. and optical features.
Chemistry – An Asian Journal published new progress about Aggregation. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics