High-Pressure Synthesis and Crystal Structure of Ce₄B₁₄O₂₇.

IF 1.1 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR Zeitschrift fur Anorganische und Allgemeine Chemie Pub Date : 2013-02-01 Epub Date: 2012-10-24 DOI:10.1002/zaac.201200402

Ernst Hinteregger, Lukas Perfler, Hubert Huppertz

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Abstract

Ce₄B₁₄O₂₇ was synthesized under conditions of 2.6 GPa and 750 °C in a Walker-type multianvil apparatus. The crystal structure was determined on the basis of single-crystal X-ray diffraction data, collected at room temperature, revealing that Ce₄B₁₄O₂₇ is isotypic to La₄B₁₄O₂₇. Ce₄B₁₄O₂₇ crystallizes monoclinically with four formula units in the space group C2/c (No. 15) and the lattice parameters a = 1117.8(2), b = 640.9(2), c = 2531.7(5) pm, and β = 100.2(1)°. The three-dimensional boron-oxygen framework consists of [BO₄]^5- tetrahedra and trigonal-planar [BO₃]^3- groups. The structure contains two crystallographically different cerium ions. Furthermore, Raman spectroscopy was performed on single crystals of Ce₄B₁₄O₂₇.

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Ce4B14O27 的高压合成与晶体结构。

Ce4B14O27 是在 2.6 GPa 和 750 ℃ 的条件下，在沃克型多坩埚装置中合成的。根据在室温下采集的单晶 X 射线衍射数据确定了晶体结构，结果显示 Ce4B14O27 与 La4B14O27 为同种类型。Ce4B14O27 呈单斜晶体，空间群为 C2/c（15 号），有四个公式单元，晶格参数 a = 1117.8(2)，b = 640.9(2)，c = 2531.7(5) pm，β = 100.2(1)°。三维硼氧框架由[BO4]5-四面体和三方平面[BO3]3-基团组成。该结构包含两个晶体学上不同的铈离子。此外，还对 Ce4B14O27 的单晶体进行了拉曼光谱分析。

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来源期刊

Zeitschrift fur Anorganische und Allgemeine Chemie 化学-无机化学与核化学

CiteScore

2.60

自引率

14.30%

发文量

308

审稿时长

1 months

期刊介绍： ZAAC is an international scientific journal which publishes original papers on new relevant research results from all areas of inorganic chemistry, solid state chemistry, and co-ordination chemistry. The contributions reflect the latest findings in these research areas and serve the development of new materials, such as super-hard materials, electrical superconductors, or intermetallic compounds. Up-to-date physical methods for the characterization of new chemical compounds and materials are also described.