The structure of polynuclear PdII hydroxocomplexes (PHC) formed as a result of alkaline hydrolysis of PdII chloride complexes was studied by EXAFS, SAXS, and TEM methods. It is established that in aqueous solutions a hydroxocomplex particle is a filament curled into a ball containing about 100 Pd atoms. The filament consists of planar coordination squares of PdO4 units linkedvia one or two oxygen bridges of different geometry. Aging of samples results in an increase in the number of single bridging ligands and a decrease in the diameter of particles. Interatomic distances around palladium atoms were determined.
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S. Yu. Troitskii, M. A. Fedotov, and V. A. Likholobov,Izv. Akad. Nauk, Ser. Khim., 1993, 679 [Russ. Chem. Bull., 1993,42, 634 (Engl. Transl.)].
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Translated fromIzvestiya Akademii Nauk. Seriya Khimlcheskaya, No. 10, pp. 1901–1905, October, 1995.
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Troitskii, S.Y., Chuvilin, A.L., Kochubei, D.I. et al. Structure of polynuclear palladium(ii) hydroxocomplexes formed upon alkaline hydrolysis of palladium(ii) chloride complexes. Russ Chem Bull 44, 1822–1826 (1995). https://doi.org/10.1007/BF00707203
- polynuclear complexes
- size distribution of particles