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TWO GROUPS OF COMPOUNDS WITH LARGE POROUS SUPERFRAMEWORKS BASED ON ANION-CENTERED [OT4] TETRAHEDRAAND THE FEATURES OF THEIR EXTRAFRAMEWORK SUBSYSTEMS
Journal of Structural Chemistry ( IF 0.8 ) Pub Date : 2020-07-01 , DOI: 10.1134/s0022476620070094
V V Bakakin , Yu V Seryotkin

Two groups of compounds with the tetrahedral differently charged {(\textrmTO4)6[\textrmT4s\textrmO]2}n+\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\left \{ \left ( \textrm{TO}_4 \right )_6 \left [ \textrm{T}_4^s\textrm{O} \right ]_2 \right \}^{n+}$$\end{document} superframework and different extraframework compensatory subsystems are presented. The first group is characterized by a constant composition of the framework with the same topology and extraframework water-cation associates of the zeolite type with different compositions and configurations. Due to a low charge of the framework, the space of its large voids, along with monovalent cations, is forcedly occupied by neutral H2O molecules. In the second group, the composition and topology of a highly charged framework are variable, with a stable three-dimensional network of large extraframework cations. The effect of the framework charge on the features of its configuration is considered.

中文翻译:

两组基于阴离子中心[OT4]四面体的大多孔超框架化合物及其超框架子系统的特征

两组带不同电荷的四面体化合物 {(\textrmTO4)6[\textrmT4s\textrmO]2}n+\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{ amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\left \{ \left ( \textrm{TO}_4 \right ) _6 \left [ \textrm{T}_4^s\textrm{O} \right ]_2 \right \}^{n+}$$\end{document} 超框架和不同的额外框架补偿子系统。第一组的特征在于具有相同拓扑结构的骨架的恒定组成和具有不同组成和构型的沸石类型的骨架外水-阳离子缔合物。由于骨架的低电荷,其大空隙的空间以及一价阳离子,被中性 H2O 分子强行占据。在第二组中,高电荷框架的组成和拓扑结构是可变的,具有稳定的大型框架外阳离子三维网络。考虑了框架电荷对其配置特征的影响。
更新日期:2020-07-01
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