In Situ Synthesis and Single Crystal Synchrotron X-ray Diffraction Study of ht-Sn3Sb2: An Example of How Complex Modulated Structures Are Becoming Generally Accessible,Accounts of Chemical Research

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In Situ Synthesis and Single Crystal Synchrotron X-ray Diffraction Study of ht-Sn3Sb2: An Example of How Complex Modulated Structures Are Becoming Generally Accessible
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2018-01-27 00:00:00 , DOI: 10.1021/acs.accounts.7b00508
Sven Lidin ₁ , Laura C. Folkers ₁

Affiliation

Recent developments in X-ray sources and detectors and the parallel development of software for nonstandard crystallography has made analysis of very complex structural problems accessible to nonexperts. Here, we report the successful solution of the structure of ht-Sn₃Sb₂, an analysis that presents several challenges but that is still manageable in a relatively straightforward way. This compound exists only in a narrow temperature regime and undergoes an unquenchable phase transformation on cooling to room temperature; it contains two elements with close to identical scattering factors, and the structure is incommensurately modulated with four symmetry dependent modulation wave vectors.

中文翻译：

ht-Sn ₃ Sb _2的原位合成和单晶同步辐射X射线衍射研究：复杂调制结构如何普遍可得的一个例子

X射线源和检测器的最新发展以及非标准晶体学软件的并行开发，使得非专家可以轻松地分析非常复杂的结构问题。在这里，我们报告了ht-Sn ₃ Sb ₂结构的成功解决方案，该分析提出了一些挑战，但仍可以相对直接的方式进行管理。该化合物仅在较窄的温度范围内存在，冷却至室温后会发生不可淬灭的相变。它包含两个具有几乎相同的散射因子的元素，并且用四个依赖于对称性的调制波矢量对结构进行了不适当的调制。

更新日期：2018-01-27

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