Synthesis and Characterization of the New Strontium Borogermanate Sr3鈥?i>x/2B2鈥?i>xGe4+xO14 (x = 0.32)

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• 作者：Benedikt Peterm眉ller ; Lucas L. Petschnig ; Klaus Wurst ; Gunter Heymann ; Hubert Huppertz
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：September 15, 2014
• 年：2014
• 卷：53
• 期：18
• 页码：9722-9728
• 全文大小：469K
• ISSN：1520-510X

文摘

The strontium borogermanate Sr_3鈥?i>x/2B_2鈥?i>xGe_4+xO₁₄ (x = 0.32) was synthesized by high-temperature solid-state reaction of SrO, GeO₂, and H₃BO₃ in a NaF/KF flux system using platinum crucibles. The structure determination revealed that Sr_3鈥?i>x/2B_2鈥?i>xGe_4+xO₁₄ (x = 0.32) crystallizes in the trigonal space group P321 (No. 150) with the parameters a = 800.7(2) and c = 488.8(2) pm, with R1 = 0.0281, wR2 = 0.0671 (all data), and Z = 1. The crystal structure of Sr_3鈥?i>x/2B_2鈥?i>xGe_4+xO₁₄ (x = 0.32) consists of distorted SrO₈ cubes, GeO₆ octahedra, GeO₄ tetrahedra, and BO₄ tetrahedra. In addition to the structural investigations, Raman and IR spectroscopic investigations were carried out.