有机化学 ›› 2025, Vol. 45 ›› Issue (11): 4185-4194.DOI: 10.6023/cjoc202503001 上一篇    下一篇

研究论文

基于三苯胺基席夫碱化合物用于潜指纹可视化的研究

陈发芬, 陈春琳, 彭智, 张帮翠, 罗海艳, 李杉, 高树林, 王建飞*(), 李湘广*(), 杨艳华*()   

  1. 昆明学院化学化工学院 云南省金属有机分子材料与器件重点实验室 云南省金属有机分子材料与器件重点实验室 昆明 650214
  • 收稿日期:2025-03-03 修回日期:2025-05-14 发布日期:2025-06-30
  • 作者简介:
    共同第一作者
  • 基金资助:
    国家大学生创新创业计划训练(202411393015); 云南省“兴滇英才支持计划”青年人才专项(ZX20230278); 云南省教育厅科学研究基金(2025Y1050); 国家自然科学基金(22065019); 昆明学院科学研究基金(XPZJ2205); 昆明学院科学研究基金(XPZJ2205-2); 昆明“春城计划”青年拔尖人才(C202014001)

Triphenylamine-Based Schiff Base Compounds for the Latent Fingerprints Visualization

Fafen Chen, Chunlin Chen, Zhi Peng, Bangcui Zhang, Haiyan Luo, Shan Li, Shulin Gao, Jianfei Wang*(), Xiangguang Li*(), Yanhua Yang*()   

  1. Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214
  • Received:2025-03-03 Revised:2025-05-14 Published:2025-06-30
  • Contact: *E-mail: wang03507856284@126.com; lixiangguang@iccas.ac.cn; yh_yangkmu@126.com
  • About author:
    The authors contributed equally to this work
  • Supported by:
    National College Students? Platform for Innovation and Entrepreneurship Training Program(202411393015); Yunnan Province “Xingdian Talent Supporting Plan” Youth Talent Special Project(ZX20230278); Scientific Research Funds Project of Yunnan Education Department(2025Y1050); National Natural Science Foundation of China(22065019); Scientific Research Funds of Kunming University(XPZJ2205); Scientific Research Funds of Kunming University(XPZJ2205-2); Kunming “Spring City Program” for Youth Top-Notch Talents(C202014001)

为了进一步推动潜指纹成像荧光染料的发展, 设计并成功合成了两种分别含有苯并咪唑基团(TPA-BZI)和苯基单元(TPA-Ph)的三苯胺基席夫碱化合物. 光致发光实验结果表明, 两种化合物在六种有机溶剂中表现出溶剂致变色现象和分子内电荷转移特性, 在CH3OH/水混合物中表现出聚集诱导发射活性, 并且固态具有荧光, 以上实验结果可用含时密度泛函理论计算来解释. 研究还发现, 这两种化合物可以用于潜指纹成像, 并且可以很容易地区分指纹的I至III级特征细节, 可以为匹配个人身份提供初步证据.

关键词: 席夫碱, 三苯胺基化合物, 聚集诱导发射, 潜指纹成像

To further advance the development of the fluorescent dyes for latent fingerprint imaging, two triphenylamine-based Schiff base compounds containing a benzimidazole group (TPA-BZI) and a phenyl unit (TPA-Ph) were designed and synthesized. Photoluminescence experiments revealed that both compounds exhibited solvatochromism and intramolecular charge transfer (ICT) characteristics in six organic solvents. Additionally, they showed aggregation-induced emission (AIE) in CH3OH/water mixtures and solid-state fluorescence. These phenomena were further elucidated through time-dependent density functional theory (TD-DFT) calculations. It was also found that the two compounds could be used for latent fingerprints imaging, and could easily distinguish the details of fingerprints from I to III levels, which could provide the preliminary evidence to match personal identification.

Key words: Schiff bases, triphenylamine-based compounds, aggregation-induced emission, latent fingerprints imaging