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Hierarchically Chiral Lattice Self-Assembly Induced Circularly Polarized Luminescence
ACS Nano ( IF 15.8 ) Pub Date : 2020-03-04 , DOI: 10.1021/acsnano.9b08408 Jiaqi Liang 1, 2 , Peipei Guo 1 , Xujin Qin 2 , Xiaohui Gao 2 , Kai Ma 2 , Xuefeng Zhu 3 , Xue Jin 2 , Weiwei Xu 4 , Lingxiang Jiang 4 , Pengfei Duan 2, 5
ACS Nano ( IF 15.8 ) Pub Date : 2020-03-04 , DOI: 10.1021/acsnano.9b08408 Jiaqi Liang 1, 2 , Peipei Guo 1 , Xujin Qin 2 , Xiaohui Gao 2 , Kai Ma 2 , Xuefeng Zhu 3 , Xue Jin 2 , Weiwei Xu 4 , Lingxiang Jiang 4 , Pengfei Duan 2, 5
Affiliation
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Biomaterials in nature often exhibit hierarchical chiral structures with an intriguing mechanism involving hierarchical chirality transfer from molecular to supramolecular and the nano- or microscale level. To mimic the cross-level chirality transfer, we present here one kind of host–guest complex system built of β-cyclodextrin (β-CD), sodium dodecyl sulfate (SDS), and fluorescent dyes, which show multilevel chirality, including molecular chirality of β-CD, induced supramolecular chirality of β-CD/SDS host–guest complexes, a chiral lattice self-assembled nanosheet, mesoscopic chirality of an assembled helical tube, induced chirality of a dye-doped chiral tube. The hierarchical chirality involved a chiral lattice self-assembly process, which can be identified by small-angle X-ray scattering, optical studies, circular dichroism, and circularly polarized luminescence spectral measurements. Benefiting from the chiral lattice self-assembly, intense circularly polarized luminescence was observed from the achiral dye-doped complexes with a large dissymmetry factor up to +0.1. This work thus provides a feasible insight for developing hierarchical chiroptical materials based on the lattice self-assembly.
中文翻译：
分层手性晶格自组装诱导的圆偏振发光
自然界中的生物材料通常表现出具有层次性的手性结构，并具有有趣的机制，涉及从分子到超分子以及纳米或微米级的层次性手性转移。为了模拟跨级手性转移，我们在此介绍一种由β-环糊精（β-CD），十二烷基硫酸钠（SDS）和荧光染料构建的宿主-客体复合系统，它们显示出多级手性，包括分子手性β-CD的诱导，β-CD/ SDS宿主-客体复合物的超分子手性，手性晶格自组装纳米片，螺合管的介观手性，染料掺杂手性管的手性。层级手性涉及手性晶格自组装过程，可通过小角度X射线散射，光学研究，圆二色性，和圆偏振发光光谱测量。得益于手性晶格的自组装，从非对称性大至+0.1的非手性染料掺杂配合物中观察到强烈的圆偏振发光。因此，这项工作为开发基于晶格自组装的分层按摩材料提供了可行的见解。
更新日期：2020-04-23
中文翻译：
分层手性晶格自组装诱导的圆偏振发光
自然界中的生物材料通常表现出具有层次性的手性结构，并具有有趣的机制，涉及从分子到超分子以及纳米或微米级的层次性手性转移。为了模拟跨级手性转移，我们在此介绍一种由β-环糊精（β-CD），十二烷基硫酸钠（SDS）和荧光染料构建的宿主-客体复合系统，它们显示出多级手性，包括分子手性β-CD的诱导，β-CD/ SDS宿主-客体复合物的超分子手性，手性晶格自组装纳米片，螺合管的介观手性，染料掺杂手性管的手性。层级手性涉及手性晶格自组装过程，可通过小角度X射线散射，光学研究，圆二色性，和圆偏振发光光谱测量。得益于手性晶格的自组装，从非对称性大至+0.1的非手性染料掺杂配合物中观察到强烈的圆偏振发光。因此，这项工作为开发基于晶格自组装的分层按摩材料提供了可行的见解。
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