Scholarlink

Abstract <p>A new compound NaCu<sub>12</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>Cl was synthesized by chemical vapor deposition. Using X-ray diffraction analysis, its crystal structure was established as containing 0-dimensional copper oxide clusters Cu<sub>12</sub>O<sub>24</sub> of a new type, which can be described as a truncated tetragonal bipyramid built from CuO<sub>4</sub> square groups, connected by sharing common edges and vertices. The complexes are combined through Si<sub>2</sub>O<sub>7</sub> disilicate groups into a three-dimensional electroneutral framework [Cu<sub>12</sub>(Si<sub>2</sub>O<sub>7</sub>)<sub>4</sub>]<sup>0</sup>, built on the principle of the bcc grid (body-centered cubic lattice). Disordered Na<sup>+</sup> and Cl<sup>–</sup> ions are located in the cavities of the framework. The structure of the 12-nucleated copper oxide clusters is similar to those of the Cu<sub><i>n</i></sub>O<sub>2<i>n</i></sub> polyoxocuprates found in various minerals and inorganic compounds.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A New Type of Copper Oxide Cluster in the Crystal Structure of NaCu12(Si2O7)4Cl, a New Representative of the Alkali Copper Disilicate Family

  • 期刊论文

  • 发表日期：

    2025年6月1日

查看全文
  • I. V. Kornyakov,
  • S. V. Krivovichev

摘要

Abstract

A new compound NaCu12(Si2O7)4Cl was synthesized by chemical vapor deposition. Using X-ray diffraction analysis, its crystal structure was established as containing 0-dimensional copper oxide clusters Cu12O24 of a new type, which can be described as a truncated tetragonal bipyramid built from CuO4 square groups, connected by sharing common edges and vertices. The complexes are combined through Si2O7 disilicate groups into a three-dimensional electroneutral framework [Cu12(Si2O7)4]0, built on the principle of the bcc grid (body-centered cubic lattice). Disordered Na+ and Cl– ions are located in the cavities of the framework. The structure of the 12-nucleated copper oxide clusters is similar to those of the CunO2n polyoxocuprates found in various minerals and inorganic compounds.