Citation: Wenlong MOU, Zhenzhou SUN, Sijie FAN, Chuanbing HOU, Zhongfeng LI, Hongliang HAN, Guo WANG, Yuping YANG, Qionghua JIN. Luminescence properties of Cu(Ⅰ) complexes with single-crystal-to-single-crystal conversion[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(1): 99-110. doi: 10.11862/CJIC.20230303 shu

Luminescence properties of Cu(Ⅰ) complexes with single-crystal-to-single-crystal conversion

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Department of Chemistry, Capital Normal University, Beijing 100048, China
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School of Resources, Environment and Tourism, Capital Normal University, Beijing 100048, China
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School of Science, Minzu University of China, Beijing 100081, China
4.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Corresponding author: Qionghua JIN, jinqh@cnu.edu.cn
Received Date: 8 August 2023
Revised Date: 1 November 2023

Figures(9)

2 -(N, N -bis(diphenylphosphino)methyl)aminopyridine (bdppmapy) was selected as a phosphine ligand, dipyrido[3, 2-a∶2′, 3′-c]phenazine (dppz) as a nitrogen ligand, and [Cu(CH₃CN)₄]BF₄ as a copper salt to react at room temperature. Three new Cu (Ⅰ) complexes were prepared, namely [Cu(dppz) (bdppmapy)]₂(BF₄)₂·H₂O (CuBF₄-1), [Cu(dppz) (bdppmapy)]BF₄ (CuBF₄-2), and [Cu(dppz) (bdppmapy)]BF₄ (CuBF₄-3). Single crystals of CuBF₄-1 and CuBF₄-3 were obtained. The phenomenon of single-crystal-to-single-crystal conversion was found, and the influence of solvent molecules on the structure and photophysical properties of coordination geometry was explored. The structures of complexes CuBF₄-1 and CuBF₄-3 were determined by single-crystal X-ray diffraction, and the structures of the three complexes were characterized by powder X-ray diffraction (PXRD), IR, and hydrogen/phosphorus NMR (¹H/³¹P NMR). The photophysical properties of the complexes were characterized and analyzed by UV-Vis absorption spectrum, fluorescence spectrum, fluorescence lifetime, and quantum yield. The differences in the luminescence properties of the complexes were compared, and the influence of solvent molecules on the structure and photophysical properties of coordination geometry was discussed. Terahertz time-domain spectroscopy provided assistance in the study of complexes.
- Cu(Ⅰ) complex,
- weak force,
- crystal structure,
- luminescence property,
- terahertz time-domain spectroscopy
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