Test Science Experiment Center, Jilin University, 2699 Qianjin Street, Changchun, 130012, PR China.
Org Biomol Chem. 2010 Oct 7;8(19):4289-96. doi: 10.1039/c0ob00091d. Epub 2010 Aug 11.
Two simple molecules, 1 and 2 with D-pi-A structure and alkoxyl groups, respectively, were designed and synthesized. Both compounds can gelatinize THF-water and DMSO. And compound 2 forms gel in acetone by ultrasonic stimulus. Interestingly, these gels exhibit aggregation-induced emission (AIE) during the sol-gel phase transformation. Moreover, the molecular self-assembled and photophysical properties can be controlled by the number of the alkoxyl chains and the type of the solvents. For example, 1 has an identical packing model and fluorescent colour in THF-water and DMSO gels. Contrarily, the self-assembly of molecule 2 strongly depends on the solvent. Furthermore, the gel phases of 2 formed in three solvents possess different fluorescent colours. Such as, THF-water gel emits yellow fluorescence, acetone gel has orange emission and red fluorescence appears in DMSO.
两种简单的分子，1 和 2，分别具有 D-π-A 结构和烷氧基基团，被设计和合成。这两种化合物都可以使 THF-水和 DMSO 胶凝。化合物 2 在超声刺激下在丙酮中形成凝胶。有趣的是，这些凝胶在溶胶-凝胶相转变过程中表现出聚集诱导发射（AIE）。此外，通过烷氧基链的数量和溶剂的类型可以控制分子的自组装和光物理性质。例如，1 在 THF-水和 DMSO 凝胶中具有相同的堆积模型和荧光颜色。相反，分子 2 的自组装强烈依赖于溶剂。此外，2 在三种溶剂中形成的凝胶相具有不同的荧光颜色。例如，THF-水凝胶发出黄色荧光，丙酮凝胶具有橙色发射，而在 DMSO 中则出现红色荧光。
