Crystal structures of the solid solutions Na3Zn0.912Cd0.088B5O10 and Na3Zn0.845Mg0.155B5O10

Acta Crystallographica Section E: Crystallographic Communications

Zhang, Y.-H.¹  Chang, X.-A.¹  Chen, X.-A.¹  Xiao, W.-Q.² 

[1] College of Materials Science and Engineering, Beijing University of Technology, Ping Le Yuan 100, Beijing 100124, People's Republic of China;Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Ping Le Yuan 100, Beijing 100124, People's Republic of China

关键词: CRYSTAL STRUCTURE;    NA3ZNB5O10;    SOLID SOLUTION;    BORATE;    ISOTYPISM;   

DOI  :  10.1107/S2056989017015249

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

Two new penta­borates, tris­odium zinc cadmium penta­borate, Na3Zn0.912Cd0.088B5O10, and tris­odium zinc magnesium penta­borate, Na3Zn0.845Mg0.155B5O10, have been synthesized by high-temperature solution reactions at 1023 K. Their crystal structures were determined by single-crystal X-ray diffraction. Both solid solutions crystallize in the ortho­rhom­bic form of the parent compound Na3ZnB5O10 (space group type Pbca, Z = 8) and contain the double ring [B5O10]5− anion composed of one BO4 tetra­hedron and four BO3 triangles as the basic structural motif. The anions are bridged by tetra­hedrally coordinated and occupationally disordered M2+ (M = Zn/Cd, Zn/Mg) cations via common O atoms to form [MB5O10]n3n− layers. The intra­layer inter­secting channels and the inter­layer voids are occupied by Na+ cations to balance the charge.

【 授权许可】

CC BY