Abstract
In this work, we report the temperature-dependent solid-state photoluminescence properties of the phosphine-supported copper(I) − halide dinuclear complexes, [(bdpb)CuX]2 (bdpb = 1,4-bis(diphenyl-phosphaneyl)butane, X = I, 1; Br, 2; Cl, 3). The X-ray diffraction analyses reveal that the metal centers exhibit a distorted tetrahedral structure in three complexes, wherein the dinuclear centers are separated via two bridging halide anions with the long Cu‒Cu distances [3.109(2) Å for 1, 3.200(2) Å for 2 and 3.181(2) Å for 3] in the X-ray structure. The luminescence properties of the three compounds were investigated in detail as a function of the temperature showing reversible luminescence thermochromism with an intense blue emission at low temperature.
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Acknowledgements
HM is grateful to PW for participating in the preparation of complex crystals
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We are thankful for financial support from the PAPD of Jiangsu Higher Education Institutions. This work was supported by the National Natural Science Foundation of China (92161121).
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Miao, H., Wang, P., Huang, Z. et al. Thermochromic photoluminescence of phosphine-supported dinuclear copper‒halide complexes. Struct Chem 34, 2307–2314 (2023). https://doi.org/10.1007/s11224-023-02165-5
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DOI: https://doi.org/10.1007/s11224-023-02165-5