Structural Transitions during Thermal Destruction in Family of Zinc Fluoridozirconate Crystal Hydrates

IF 1.5 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2025-08-26 DOI:10.1134/S0036023624603970

K. A. Saiankina, N. A. Didenko, N. N. Savchenko, A. V. Gerasimenko

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Abstract

The structure of ZnZrF₆·6H₂O and ZnZrF₆·5H₂O (high- and low-temperature forms) crystal hydrates and products of their thermal destruction ZnZrF₆·4H₂O, ZnZrF₆·2H₂O, ZnZrF₆, and ZnZr₂F₁₀·2H₂O have been studied. With the exception of ZnZr₂F₁₀·2H₂O, compounds of ZnZrF₆·nH₂O (n = 6, 5, 4, 2, 0) are isostructural to their formula analogs NiZrF₆·6H₂O, α- and β-MgZrF₆·5H₂O, CuZrF₆·4H₂O, MgZrF₆·2H₂O, and MgZrF₆, respectively. The structure of ZnZr₂F₁₀·2H₂O is built of unique infinite network anionic layers \(_{\infty }^{2}\)[Zr₂F₁₀]^2–, in which ZrF₈ square antiprisms are formed tetranuclear cycles and are shared six of their vertices with four neighboring Zr-polyhedra according to the law “…–edge–edge–vertex–vertex–…”; ZnF₄(H₂O)₂-octahedra link Zr-layers to each other into a framework.

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氟锆酸锌晶体水合物族热破坏过程中的结构转变

研究了ZnZrF6·6H2O和ZnZrF6·5H2O（高温态和低温态）晶体水合物的结构及其热破坏产物ZnZrF6·4H2O、ZnZrF6·2H2O、ZnZrF6和ZnZr2F10·2H2O。除ZnZr2F10·2H2O外，ZnZrF6·nH2O （n = 6、5、4、2、0）化合物分别与它们的分子式类似物NiZrF6·6H2O、α-和β-MgZrF6·5H2O、CuZrF6·4H2O、MgZrF6·2H2O和MgZrF6具有相同的结构。ZnZr2F10·2H2O的结构是由独特的无限网络阴离子层\(_{\infty }^{2}\) [Zr2F10]2 -构成，其中ZrF8方形反棱镜形成四核循环，并按照“…- edge - edge - vertex - vertex -…”的规律与相邻的四个zr -多面体共用六个顶点；ZnF4(H2O)2-八面体将zr层相互连接成一个框架。

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.