X-ray diffraction experiment on DyBr<Subscript>3</Subscript>:20H<Subscript>2</Subscript>O and YbBr<Subscript>3</Subscript>:20H<Subscript>2</Subscript>O solutions. Pre-main peak as a prerequisite to consider the structural organization of solutions期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

X-ray diffraction experiment on DyBr3:20H2O and YbBr3:20H2O solutions. Pre-main peak as a prerequisite to consider the structural organization of solutions

Authors:	O. V. Grechin V. V. Kuznetsov M. V. Yakimova

Affiliation:	(1) Ivanovo State Chemical Technological University, Ivanovo, Russia

Abstract:	Primary data of the X-ray diffraction experiment on DyBr₃ and YbBr₃ aqueous solutions in salt:water molar ratios of 1:20 are presented. The occurrence of a pre-main peak in the curves of normalized scattering intensities determines the average distance between cations in these solutions, and hence, directs to a model description of the structure of solutions. Based on the determination of boundaries of the cation complex and taking into account the deficit of solvent, a model of the cation complex is supposed to consist of two coordination shells involving at least two anions.

Keywords:	aqueous solutions lanthanide cations X-ray diffraction method pre-main peak (PMP) diffusion-averaged structure (D-structure) cation coordination environment simulation of solutions
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