The coordination (hydration) of rare earth ions in aqueous chloride solutions from x ray diffraction. I.TbCl3,DyCl3, ErCl3,TmCl3,and LuCl3

Autor:	Frank H. Spedding, Anton Habenschuss
Rok vydání:	1979
Předmět:	Aqueous solution Chemistry Inorganic chemistry Resolution (electron density) Analytical chemistry General Physics and Astronomy Ion pairs Inner sphere electron transfer Chloride Ion X-ray crystallography Rare earth ions medicine Physical and Theoretical Chemistry medicine.drug
Zdroj:	The Journal of Chemical Physics. 70:2797-2806
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.437866
Popis:	The rare earth complex,[RE(H3O)8]3+,has been identified in concentrated (3.2−3.6 m) aqueous TbCl3,DyCl3,ErCl3,TmCl3, and LuCl3 solutions from x ray diffraction measurements. The inner sphere water coordination of rare earth ion was obtained from quantitative resolution of the radial distribution functions. In each solution the rare earth ion has eight water nearest neighbors with the average RE3−H2O distances being 2.409, 2.396, 2.369, 2.358, and 2.338A for TbCl3,DyCl3, ErCl3, TmCl3, and LuCl3,respectively. The average RE3+. . . Cl− ion pair distances are near 4.8A.
Databáze:	OpenAIRE
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