Complexation and Fluorescence Enhancement of Bay-site Carboxyl Modified Perylene Dimide with Calcium Ion  

羧基改性苝酰亚胺与钙离子的络合组装及荧光增强

作　　者：GU Dandan ZHAO Haoru JIANG Xiaoze QI Haohan LIAO Zuogui CHEN Jia SUN Bin 顾丹丹;赵浩儒;江晓泽;齐浩含;廖作桂;陈珈;孙宾(东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620;广东壹诺科技股份有限公司,广东云浮527300)

机构地区：[1]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China [2]Guangdong Yinuo Technology Co.,Ltd,Yunfu 527300,China

出　　处：《发光学报》2025年第3期474-485,共12页Chinese Journal of Luminescence

基　　金：云浮市2023年创新团队项目(CYRC202305)。

摘　　要：Bay-site carboxyl functionalized perylene diimide derivative 1,7-COOH-PDI-C_(12)(PDI-COOH)was synthesized and distinct enhanced fluorescence was observed through combining with calcium ion(Ca^(2+))in THF/H_(2)O solution.The assembly and fluorescence behavior of PDI-COOH/Ca^(2+)were studied in detail by changing hydration state with different concentrations.Based on the differences in assembly morphology and stoichiometric ratios of PDICOOH/Ca^(2+),we proposed the fluorescence emission mechanism of PDI-COOH/Ca^(2+)in THF/H_(2)O and THF,respectively.This work reveals a novel strategy of aggregated state fluorescence enhancement and reminds us of the important role of water in molecular fluorescence emission and assembly.合成了湾位羧基化的苝酰亚胺衍生物1,7-COOH-PDI-C_(12)(PDI-COOH),并在THF/H_(2)O溶液中与钙离子(Ca^(2+))结合,观察到独特的荧光增强现象。通过改变不同浓度的水合状态,详细研究了PDI-COOH/Ca^(2+)的组装和荧光行为。基于PDI-COOH/Ca^(2+)的组装形态和化学计量比差异,分别提出了PDI-COOH/Ca^(2+)在THF/H_(2)O和THF中的荧光发射机制。这项工作揭示了一种聚集态荧光增强的新策略,并认识到水在分子荧光发射和组装中的重要作用。

关 键 词：carboxyl functionalized fluorescence behavior perylene diimide photoinduced electron transfer effect calcium ion 

分 类 号：O482.31[理学—固体物理]