Construction of Artificial Light-Harvesting Systems Based on Aggregation-Induced Emission Type Supramolecular Self-Assembly Metallogels.
Construction of Artificial Light-Harvesting Systems Based on Aggregation-Induced Emission Type Supramolecular Self-Assembly Metallogels.
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DOI：
10.1021/acs.langmuir.2c02841
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发表时间：
2023-01
期刊：
影响因子：
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通讯作者：
Yipei Wang;Y. Lai;Tianqi Ren;Jiahong Tang;Yang Gao;Y. Geng;Jiali Zhang;Xinxian Ma
中科院分区：
文献类型：
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作者：
Yipei Wang;Y. Lai;Tianqi Ren;Jiahong Tang;Yang Gao;Y. Geng;Jiali Zhang;Xinxian Ma
提出了一种基于超分子金属凝胶的新型人工捕光系统的制备方法。将各种金属离子引入到双苯并咪唑化合物（P）的乙二醇溶液中，并且P表现出对Al 3+的高选择性，如在添加Al 3+之后在P的荧光光谱中观察到的显著红移（49 nm）所示。有趣的是，凝胶因子P可以自组装成一个稳定的超分子凝胶（P-凝胶），表现出强烈的聚集诱导发射在乙二醇中。因此，在凝胶环境中成功地制备了两种ALHS。P-Al 3+组装体在ALHS中充当供体，而负载到P-Al 3+组装体上的BODIPY 505/515（BDP）和罗丹明6 G（Rh 6 G）充当受体。在这两个不同的系统中，能量转移过程的发生被证实从P-Al 3+组装到BDP和Rh 6 G。这项研究的结果将使ALHS的设计和制造。
A method for preparing new artificial light-harvesting systems (ALHSs) based on supramolecular metallogels was proposed. Various metal ions were introduced into a solution of a bi-benzimidazole compound (P) in ethylene glycol, and P exhibited high selectivity toward Al3+, as indicated by the noticeable red shift (49 nm) observed in the fluorescence spectra of P after the addition of Al3+. Interestingly, the gelator, P, could self-assemble into a stable supramolecular gel (P-gel) that exhibits strong aggregation-induced emission in ethylene glycol. Thus, two ALHSs were successfully prepared in a gel environment. The P-Al3+ assembly acts as the donor in the ALHSs, while BODIPY 505/515 (BDP) and rhodamine 6G (Rh6G), which are loaded onto the P-Al3+ assembly, act as acceptors. In these two diverse systems, the occurrence of an energy transfer process is confirmed from the P-Al3+ assembly to BDP and Rh6G. The findings of this study will enable the design and fabrication of ALHSs.