Development of a Geometric Descriptor for the Strategic Synthesis of Remeika Phases
Development of a Geometric Descriptor for the Strategic Synthesis of Remeika Phases
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DOI：
10.1021/acs.chemmater.2c03711
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发表时间：
2023-03
影响因子：
8.6
通讯作者：
Alexis Dominguez Montero;G. McCandless;Olatunde Oladehin;R. Baumbach;Julia Y. Chan
中科院分区：
文献类型：
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作者：
Alexis Dominguez Montero;G. McCandless;Olatunde Oladehin;R. Baumbach;Julia Y. Chan
Remeika相，也被描述为假钙钛矿，是一种具有突发性的笼状结构。在这个视角下，我们首先介绍用来克服挑战的启发式方法，以使延伸固体的稳定性合理化。我们强调了Goldschmidt的耐受因子在加强与钙钛矿及其衍生物相关的研究中所发挥的重要作用。我们讨论了预测金属间假钙钛矿稳定性的容差因子的发展，Remeika相，并将氧化态与价态涨落联系起来。为了评估Remeika位相容差因子的可行性，我们合成了新的预测化合物Yb5Ru6Sn18，其磁矩(μef)为3.2Remeika B/Yb。然后我们强调了确定决定Remeika金属间化合物稳定性的因素的重要性。
Remeika phases, also described as pseudoperovskites, are cage-like structures with emergent properties. In this Perspective, we first cover heuristic methods used to overcome the challenges to rationalize the stability of extended solids. We highlight the important role Goldschmidt’s tolerance factor has played in enhancing research related to perovskites and their derivatives. We discuss the development of a tolerance factor for predicting the stability of intermetallic pseudoperovskites, the Remeika phases, and rationalize oxidation states in correlation with valence fluctuation. To evaluate the feasibility of the Remeika phase tolerance factor, we synthesized the new predicted compound Yb5Ru6Sn18with a magnetic moment (μeff) of 3.2 μB/Yb. We then highlight the importance of determining the factors dictating the stability of the Remeika intermetallics.