高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (4): 646-651.doi: 10.7503/cjcu20190657

• 庆祝《高等学校化学学报》复刊40周年专栏 • 上一篇    下一篇

“眼镜”状碘化亚铜配合物的调光和双光子发光性质

尹少云1,2,张露尹1,3,王政1,潘梅1,*()   

  1. 1. 中山大学化学学院, 广州 510275
    2. 广东工业大学分析测试中心, 广州 510006
    3. 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室, 材料科学与工程学院, 兰州 730050
  • 收稿日期:2019-12-11 出版日期:2020-04-10 发布日期:2020-02-17
  • 通讯作者: 潘梅 E-mail:panm@mail.sysu.edu.cn
  • 基金资助:
    国家自然科学基金资助(21771197, 21821003)

Glass-like Cuprous Iodide Complexes with Photoluminescence Tuning and Two-photon Emission Properties

YIN Shaoyun1,2,ZHANG Luyin1,3,WANG Zheng1,PAN Mei1,*()   

  1. 1. School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
    2. Analysis and Test Center, Guangdong University of Technology, Guangzhou 510006, China
    3. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2019-12-11 Online:2020-04-10 Published:2020-02-17
  • Contact: Mei PAN E-mail:panm@mail.sysu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(21771197, 21821003)

摘要:

将半柔性的π-不饱和双吡啶端基配体3-pebtd与CuI分别在不同的溶剂中分层扩散, 经自组装得到8种具有Cu2I2L2构型的眼镜状碘化亚铜配合物. 利用X射线单晶衍射、 X射线粉末衍射和元素分析等方法确定了配合物的结构. 对配合物的光物理性质进行了表征, 结果表明, 不同溶剂中自组装得到的配合物的单光子发光均表现出单一荧光峰, 这可归因于卤素到配体的电荷转移( 3XLCT); 并且这些配合物的发光颜色由492 到518 nm可调, 量子产率为33.1%~68.5%. 同时, 这类配合物表现出较优异的双光子发光性质, 有望将其用于生物成像领域.

关键词: 碘化亚铜配合物, 调光, 双光子发光, 双吡啶端基配体

Abstract:

Eight kinds of glass-like cuprous iodide complexes with Cu2I2L2 configurations were self-assembled from CuI with semi-flexible 3-pebtd ligand with unsaturated π-backbone and bipodal pyridine terminals in different solvents. The complexes were characterized by X-ray single crystal diffraction, X-ray powder diffraction, elemental analysis, and so on. The photophysical properties of the complexes were studied, and the results show that the one-photon emissions of the complexes obtained in different solvents show single fluorescence bands assigning to the halogen to ligand charge transfer( 3XLCT). The luminescent colors of the complexes were adjustable from 492 to 518 nm, and the quantum yield was 33.1%~68.5%. At the same time, these complexes exhibit excellent two-photon emission properties and are expected to be used in the field of biological imaging.

Key words: Cuprous iodide complex, Photoluminescence tuning, Two-photon emission, Bipodal pyridine terminal ligand

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