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南京师范大学苏志&北京高压科学研究中心(上海)陈志强团队:高压温度双响应MOF揭示TPE构象动力学—实现多模态荧光调控新机制

  • 2026-04-20 10:45:51
南京师范大学苏志&北京高压科学研究中心(上海)陈志强团队:高压温度双响应MOF揭示TPE构象动力学—实现多模态荧光调控新机制

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Aggregate《聚集体》致力于发表聚集体科学领域的基础和应用研究,涵盖材料化学、物理、生物、应用工程等广泛领域的重要进展和创新性成果。

Aggregate 在科睿唯安发布的期刊引证报告(JCR)中,连续四年位列“化学:综合”,“物质化学”和“材料科学:综合”三个学科Q1区,期刊最新影响因子为13.7;在2026年最新期刊分区表中,蝉联化学大类一区TOP,并在三个小类位列一区!

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文章信息

通讯作者:苏志(南京师范大学),陈志强(北京高压科学研究中心(上海))

作者:张自由,汪欣颖,董洪亮,吉特,闫帅,陈志强*,苏志*

Keywords:

aggregation-induced emission | multi-stimuli-responsive | smart sensing materials

原文链接:

https://doi.org/10.1002/agt2.70326

点击文末“阅读原文”浏览全文

引用:Aggregate 2026, 7, e70326.

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文章简介

聚集诱导发光(AIE)分子凭借其独特的“分子内运动受限”发光机制,在智能发光材料领域展现出巨大的应用潜力。其中,四苯乙烯(TPE)作为典型AIE基元,其荧光行为对分子构象变化和分子间堆积极为敏感。然而,在传统晶体中,TPE分子在外界刺激(如温度和压力)作用下易发生结构坍塌或不可逆变化,限制了对其“结构—发光”关系的深入理解。

金属有机框架(MOF)因其高度有序的结构与可调空间限域效应,为研究分子尺度下刺激响应机制提供了理想平台。特别是将AIE分子限域于MOF骨架中,有望实现对分子构象的精准调控,进而揭示其在外界刺激下的发光本质。

该工作围绕AIE分子在外界刺激下的发光机制展开,构建了一种基于TPE衍生配体(H4TCPE)与Tb(III)节点组装的三维金属有机框架材料TCPE-Tb(图1)。该材料具有优异的结构稳定性(可耐受500K高温与24.6GPa高压),为原位表征研究提供了可靠的平台。

1. TCPE-Tb晶体结构

通过结合原位单晶X射线衍射与高压光谱技术,该工作系统揭示了温度和压力对其荧光行为的调控机制:在温度刺激下,材料表现出荧光强度“先下降、后上升、再下降”的非单调变化以及蓝移现象,其本质源于分子内苯环扭转构象的变化及晶体对称性的调控(图2);而在压力作用下,荧光发生显著红移并逐渐猝灭,这是由于分子间距离缩短诱导π-π堆积及准分子缔合物的形成(图3)。该工作首次在分子尺度上明确区分了“温度调控分子内运动”与“压力调控分子间堆积”两种不同机制,建立了构象动力学与光物理响应之间的直接关联。该工作不仅为AIE分子发光机理提供了新的认识,也为高稳定性、多刺激响应MOF材料在多模态传感与自适应光电器件中的应用奠定了重要基础。

2. TCPE-Tb荧光对温度的响应及机制

图3. TCPE-Tb荧光对压力的响应及机制

以上研究论文Thermal- and Pressure-Sensing of Vibration Dynamics of Tetraphenyl Ethylene in Rotation Restricted Frame”为题发表于Aggregate期刊,论文第一作者南京师范大学与北京高压科学研究中心(上海)联合培养的张自由博士,通讯作者为南京师范大学苏志教授和北京高压科学研究中心(上海)陈志强研究员

第一作者

张自由

博士,阜阳师范大学助理研究员。2024年博士毕业于南京师范大学/北京高压科学研究中心(上海),导师苏志教授/陈志强研究员。主要研究方向为:极端条件下多孔结晶材料的光电性能演化;功能性MOF材料的设计研发及其用于低碳烃吸附分离,在Aggregate, JACS Au, Chin. Chem. Lett., Sep. Purif. Technol., Inorg. Chem.等学术期刊发表论文10余篇。

通讯作者

陈志强

北京高压科学研究中心(HPSTAR)研究员,并担任技术部主任。2008年博士毕业后,随即加入美国布鲁克海文国家实验室作为线站科学家,负责同步辐射束线站X17,同期为纽约州立大学石溪分校的助理教授。2015年加入HPSTAR,主要致力于高压材料科学的研究,聚焦于MOF多孔类材料和半导体材料的压致效应,在Phys. Rev. X, Adv. Mater., J. Am. Chem. Soc.等学术期刊上发表论文120余篇,引用次数2000余次,h-index为27。近期获得过中国分析测试协会科学技术奖(CAIA奖)二等奖(2020)等。近年来,主持和参与了多项国家项目,包括国家自然科学基金的大装置联合项目以及国家重点研发项目课题。

苏志

教授,博士生导师,齐齐哈尔大学校长助理(挂职)/南京师范大学化学与材料科学学院副院长、南京师范大学中青年杰出人才,南京师范大学化学国家级一流本科专业建设点负责人,现为江苏省化学化工学会理事,江苏省化学奥林匹克竞赛委员会委员。2010年博士毕业于南京大学配位化学国家重点实验室,主要研究方向为化学生物学-金属抗肿瘤药物研发,先后入选江苏省特聘教授特别资助人员(优秀结题),江苏省“333”高层次人才计划,南京师范大学中青年领军人才培养计划。至今在J. Am. Chem. Soc., Angew. Chem. Int. Edit., Adv. Mater., Coord. Chem. Rev.等学术期刊上发表论文90余篇,授权国家发明专利6项,先后主持国家自然科学基金-面上项目/青年项目,江苏省自然科学基金杰出青年项目/面上项目,江苏省特聘教授启动基金,黑龙江省自然科学基金-联合基金重点项目等基金项目10余项。

Aggregate 的编辑团队由一批来自世界各地、跨越不同研究领域的杰出专家组成,他们将联手把关期刊的稿件出版,为不同研究领域的作者提供公正的论文评审和快速的出版服务。

Aggregate 鼓励打破学科藩篱,实现研究范式转移,在更高的结构层次上探索更复杂的系统和过程。

Aggregate 是一本开放获取期刊,读者可以自由访问所有已发表的文章。欢迎您向 Aggregate 投稿!

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  1. CONNECT:[ UseTime:0.001140s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001863s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005840s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001631s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001611s ]
  6. SELECT * FROM `set` [ RunTime:0.002957s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001785s ]
  8. SELECT * FROM `article` WHERE `id` = 532611 LIMIT 1 [ RunTime:0.001263s ]
  9. UPDATE `article` SET `lasttime` = 1776966728 WHERE `id` = 532611 [ RunTime:0.002193s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000281s ]
  11. SELECT * FROM `article` WHERE `id` < 532611 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000967s ]
  12. SELECT * FROM `article` WHERE `id` > 532611 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003454s ]
  13. SELECT * FROM `article` WHERE `id` < 532611 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001899s ]
  14. SELECT * FROM `article` WHERE `id` < 532611 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000806s ]
  15. SELECT * FROM `article` WHERE `id` < 532611 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001703s ]
0.204009s