Kolly Isabelle, Langenegger Simon M, Liu Shi-Xia, Häner Robert
Department of Chemistry, Biochemistry and Pharmaceutical Sciences, W. Inäbnit Laboratory for Molecular Quantum Materials, WSS-Research Center for Molecular Quantum Systems, University of Bern Freiestrasse 3 3012 Bern Switzerland
RSC Adv. 2025 Jul 8;15(29):23862-23866. doi: 10.1039/d5ra04551g. eCollection 2025 Jul 4.
Self-assembly in aqueous media offers a promising strategy for the development of dynamic and adaptive materials. In this context, two new amphiphilic dicyanomethylenated acridone trimers have been synthesized and fully characterized. These molecules exhibit a reversible and tunable self-assembly behavior, forming spherical nanostructures in aqueous media. This self-assembly process is accompanied by distinct changes in their optical properties, remarkably an enhancement in fluorescence arising from restricted molecular torsion within the assembled structures. This study clearly demonstrates that crystalline-like properties can be achieved through solution-based self-assembly. Moreover, the length of the -alkyl substituents on the acridone core plays a pivotal role in controlling both the self-assembly dynamics and the corresponding optical responses.
在水介质中进行自组装为动态和自适应材料的开发提供了一种很有前景的策略。在此背景下，已合成并全面表征了两种新型两亲性二氰基亚甲基化吖啶酮三聚体。这些分子表现出可逆且可调的自组装行为，在水介质中形成球形纳米结构。这种自组装过程伴随着其光学性质的明显变化，特别是由于组装结构内分子扭转受限而导致的荧光增强。这项研究清楚地表明，通过基于溶液的自组装可以实现类似晶体的性质。此外，吖啶酮核心上烷基取代基的长度在控制自组装动力学和相应的光学响应方面起着关键作用。
