Abstract
Complexes of uranyl halogenides with neutral organic ligands in the solid state have been obtained, the luminescence spectra at T = 77 K have been recorded, and the dependences of them on the composition of the complex have been investigated. The linear dependence of the change in the frequencies of electron and vibronic transitions on the donor number of the neutral ligands has been revealed, thus allowing us to propose a spectral method for determining the structure of the system studied. It is shown that the increased strength of the bond of some halogen ligands (in particular, fluorine) with uranyl favors the nonsaturation of their inner coordination sphere. At the same time, the most stable complexes of the substances considered are formed when two halogen ions are supplemented with three molecules of organic ligand.
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Zazhogin, A.A., Zazhogin, A.P., Komyak, A.I. et al. Donor Properties of Ligands and the Structure and Spectra of Uranyl Halogenides in the Solid State. Journal of Applied Spectroscopy 69, 380–387 (2002). https://doi.org/10.1023/A:1019747115223
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DOI: https://doi.org/10.1023/A:1019747115223