Artificial light-harvesting systems based on supramolecular self-assembly multi-component metallogels.
Artificial light-harvesting systems based on supramolecular self-assembly multi-component metallogels.
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DOI：
10.1039/d2sm01493a
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发表时间：
2022-12
期刊：
影响因子：
3.4
通讯作者：
Xinxian Ma;Yipei Wang;Y. Lai;Tianqi Ren;Jiahong Tang;Yang Gao;Y. Geng;Jiali Zhang
中科院分区：
文献类型：
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作者：
Xinxian Ma;Yipei Wang;Y. Lai;Tianqi Ren;Jiahong Tang;Yang Gao;Y. Geng;Jiali Zhang
本文提出了一种基于超分子多组分金属凝胶的新型人工采光系统的构建策略。将Al~(3+)引入酰肼类化合物(L)的二甲亚砜或二甲基甲酰胺溶液中，形成L-Al~(3+)组装。在L溶液中加入Al~(3+)后，L的荧光光谱发生了显著的蓝移。在二甲基亚砜-水二元溶液中，L能与1，3：2，4-二亚苄基山梨醇(B)形成凝胶(L-B-凝胶)。最后，我们得到了一种多元金属凝胶(L-Al~(3+)-B-凝胶)，并成功地制备了两种ALHS(L-Al~(3+)/罗丹明6G(Rh6G)和L-Al~(3+)/罗丹明B(RhB))。在这些体系中，L-Al~(3+)超分子集合体为给体，Rh6G和RhB为受体。此外，我们还证实了L-Al~(3+)组分分别向Rh6G和RhB传递能量的过程。所提出的制造策略将促进ALHS的发展。
This paper proposes a strategy for fabricating new artificial light-harvesting systems (ALHSs) based on supramolecular multi-component metallogels. Al3+ was introduced into a solution of an acylhydrazone compound (L) in DMSO or DMF to form the L-Al3+ assembly. After adding Al3+ to the L solution, a noticeable blue shift appeared in the fluorescence spectra of L. Moreover, L could form a gel (L-B-gel) with 1,3:2,4-dibenzylidene sorbitol (B) in a DMSO-H2O binary solution. Finally, we obtained a multi-component metallogel (L-Al3+-B-gel) and successfully fabricated two ALHSs (L-Al3+/rhodamine 6G (Rh6G) and L-Al3+/rhodamine B (RhB)). In these systems, the L-Al3+ supramolecular assembly acts as the donor, while Rh6G and RhB act as acceptors. Additionally, we confirmed an energy-transfer process from the L-Al3+ component to Rh6G and RhB separately. The proposed fabrication strategy will facilitate the development of ALHSs.