Mesogens with Aggregation-Induced Emission Formed by Hydrogen Bonding
Mesogens with Aggregation-Induced Emission Formed by Hydrogen Bonding
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DOI：
10.1021/acsmaterialslett.9b00371
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发表时间：
2019-11-01
影响因子：
11.4
通讯作者：
Giese, Michael
中科院分区：
文献类型：
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作者：
Saccone, Marco;Blanke, Meik;Giese, Michael
在这篇贡献中，我们报告了一种显示聚集诱导发射（ME）的超分子方法。me活性芳香硫醚作为氢键给体，与烷氧基二苯醚作为氢键受体结合。通过自组装，得到了具有单向液晶行为的氢键配合物。此外，还发现手性香茅基侧链的引入导致了强烈的发射色移，而线性烷基链没有观察到这种现象。详细研究了该材料的介晶行为，以及其作为固体和中间相的光物理性质。
In this contribution, we report a supramolecular approach toward mesogens showing aggregation-induced emission (ME). ME-active aromatic thio-ethers, acting as hydrogen-bond donors, were combined with alkoxystilbazoles as hydrogen-bond acceptors. Upon self-assembly, hydrogen-bonded complexes with mono-tropic liquid crystalline behavior were obtained. In addition, it was found that the introduction of a chiral citronellyl side chain leads to drastic bathochromic shift of the emission, which was not observed for linear alkyl chains. The mesomorphic behavior, as well as the photophysical properties as a solid and in the mesophase of the liquid crystalline assemblies, were studied in detail.