A dish-like molecular architecture for dynamic ultralong room-temperature phosphorescence through reversible guest accommodation.

A dish-like molecular architecture for dynamic ultralong room-temperature phosphorescence through reversible guest accommodation.
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通过可逆宾客住宿实现动态超长室温磷光的碟状分子结构

DOI:
10.1038/s41467-022-35155-y
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发表时间:
2022-12-02
影响因子:
16.6
通讯作者:
Chi, Zhenguo
Chi, Zhenguo
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Li, Wenlang;Huang, Qiuyi;Mao, Zhu;He, Xiaoyi;Ma, Dongyu;Zhao, Juan;Lam, Jacky W. Y.;Zhang, Yi;Tang, Ben Zhong;Chi, Zhenguo

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开发动态有机超长室温磷光材料在各种应用中具有重要的实际意义,但由于难以控制骨料结构,因此仍然是一个挑战。在这里,我们通过自下而上的方式报告了一个类似盘子的分子结构,具有客人响应的动态URTP。通过控制分子结构中的局部片段运动,可以实现迷人的动态URTP性能,以响应各种客体的可逆容纳,包括溶剂、烷基溴甚至二氧化碳。可以实现磷光寿命(100倍)和强度(10倍)的大规模调节,最大磷光效率和寿命分别为78.8%和483.1 ms。此外,这种盘状分子结构被用于线性烷基溴的温度依赖多重信息加密和视觉识别。这项工作不仅可以加深我们对构建多功能有机聚集体的认识,而且可以为高性能动态URTP材料的设计提供便利,丰富其实际应用。
Developing dynamic organic ultralong room-temperature phosphorescent (URTP) materials is of practical importance in various applications but remains a challenge due to the difficulty in manipulating aggregate structures. Herein, we report a dish-like molecular architecture via a bottom-up way, featuring guest-responsive dynamic URTP. Through controlling local fragment motions in the molecular architecture, fascinating dynamic URTP performances can be achieved in response to reversible accommodation of various guests, including solvents, alkyl bromides and even carbon dioxide. Large-scale regulations of phosphorescence lifetime (100-fold) and intensity (10-fold) can be realized, presenting a maximum phosphorescence efficiency and lifetime of 78.8% and 483.1 ms, respectively. Moreover, such a dish-like molecular architecture is employed for temperature-dependent multiple information encryption and visual identification of linear alkyl bromides. This work can not only deepen our understanding to construct multifunctional organic aggregates, but also facilitate the design of high-performance dynamic URTP materials and enrich their practical applications.
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发表时间: 2020-09-21
期刊: NATURE MATERIALS
影响因子: 41.2
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