POS1-1401
Topology-Dependent Self-Assembly of BTA-Based Supramolecular Templates for Au Nanostructure
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
ChaeRim Kim (Dongguk University)
Co-Author(s)
Abstract
Benzene-1,3,5-tricarboxamide (BTA)-based supramolecular systems have attracted considerable attention as versatile building blocks for constructing functional nanostructures through directional hydrogen bonding and hierarchical self-assembly. In our previous study, discrete BTA derivatives bearing terminal carboxylic acid groups formed supramolecular nanonetwork structures, demonstrating the importance of molecular design in directing self-assembly. In this study, the influence of molecular topology on the self-assembly behavior of BTA derivatives was investigated while maintaining an identical number of terminal carboxylic acid groups. Two BTA derivatives, BTA2tz×3mer and BTA3tz×2mer, were designed and synthesized. Although both derivatives possess six terminal carboxylic acid groups, they differ in the number of triazole junctions and the spatial arrangement of functional groups, resulting in distinct topological architectures. The self-assembly behavior of the synthesized derivatives was evaluated by concentration-dependent UV–Vis spectroscopy and dynamic light scattering (DLS). Compared with previously reported linear BTA-based systems, the topology-modified derivatives exhibited distinct aggregation behavior, indicating that molecular topology significantly influences supramolecular organization. These results suggest that topological engineering provides an effective strategy for modulating assembly pathways and generating alternative supramolecular architectures. These findings demonstrate that molecular topology can serve as an important design parameter for controlling supramolecular assembly beyond functional group composition alone. Further structural characterization including electron microscopy is underway to elucidate the resulting nanoscale morphologies and evaluate their potential as soft templates for the controlled formation and organization of metal nanoparticles.
