POS5-1190
Counter Anion-Induced Conformational Modulation in Ionic Organic Nonlinear Optical Crystals
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Haneul Kim (Department of Molecular Science and Technology, Ajou University, Suwon 16499, Korea)
Co-Author(s)
Abstract
Molecular conformation significantly influences intermolecular interactions and crystal growth capability in ionic organic nonlinear optical (NLO) crystals. Conformational modulation therefore provides an effective approach for tailoring crystal structures and improving the processability of ionic organic NLO crystals for terahertz (THz) wave generation.
Herein, bulky counter anions were introduced into the quinolinium cationic chromophore to investigate the resulting changes in molecular conformation and crystal structure. The molecular conformational changes induced by bulky anions effectively modulated π-π interactions and molecular packing density, leading to the formation of a stable non-centrosymmetric crystal packing. Furthermore, the optimized crystal packing resulted in improved single-crystal growth and enhanced processability, facilitating precise crystal thickness control for optimized THz wave generation conditions.
This study demonstrates that changes in molecular conformation induced by counter anions can control crystal packing, crystal growth, and processability. These results provide a new strategy for designing organic NLO materials for high-efficiency THz wave generation.
Herein, bulky counter anions were introduced into the quinolinium cationic chromophore to investigate the resulting changes in molecular conformation and crystal structure. The molecular conformational changes induced by bulky anions effectively modulated π-π interactions and molecular packing density, leading to the formation of a stable non-centrosymmetric crystal packing. Furthermore, the optimized crystal packing resulted in improved single-crystal growth and enhanced processability, facilitating precise crystal thickness control for optimized THz wave generation conditions.
This study demonstrates that changes in molecular conformation induced by counter anions can control crystal packing, crystal growth, and processability. These results provide a new strategy for designing organic NLO materials for high-efficiency THz wave generation.
