Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (4): 646.doi: 10.7503/cjcu20190657

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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)

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

CLC Number: 

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