弓状x光片

Journal of The Less Common Metals Pub Date : 1991-10-01 DOI:10.1016/0022-5088(91)90015-V

M Soll, Hk Müller-Buschbaum

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引用次数: 13

摘要

首次采用高压氧化技术制备了SrHgO2单晶。X射线研究表明，该晶体具有三角对称性，空间群D36-P3221（编号154），a=3.833（3）a，c=18.990（15）a，Z=3。Hg2+的配位数为2，而Sr2+被六个氧离子包围。边缘连接的SrO6八面体的二维层由O-Hg-O哑铃连接。SrHgO2属于拉佛斯岩型结构。

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SrHgO2: Ein oxomercurat mit delafossitstruktur

For the first time, single crystals of SrHgO₂ have been prepared by a high pressure oxidation technique. X-ray investigations indicate that the crystals have trigonal symmetry, space group D₃⁶-P3₂21 (no. 154), with $a = 3.833(3) a ̊ A$ , $c = 18.990(15) A ̊$ and Z = 3. Hg²⁺ has a coordination number of two, while Sr²⁺ is surrounded by six oxygen ions. Two-dimensional layers of edge-linked SrO₆ octahedra are connected by O-Hg-O dumb-bells. SrHgO₂ belongs to the delafossite-type structure.

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Journal of The Less Common Metals

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