新型四元金属间化合物 R2MoSi2C（R = Y、Gd）的晶体结构。

IF 1.3 3区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Acta crystallographica Section B, Structural science, crystal engineering and materials Pub Date : 2024-10-01 Epub Date: 2024-09-06 DOI:10.1107/S2052520624007017

Anne Vernière, Léopold V B Diop, Ibrahima Sarr, Thierry Schweitzer, Bernard Malaman

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引用次数: 0

摘要

报告发现了 R-Mo-Si-C 系统中的新型四元金属间化合物 R2MoSi2C（R = Y、Gd）。利用单晶 X 射线衍射研究了它们的晶体结构。结果表明，Y2MoSi2C 和 Gd2MoSi2C 化合物在四方空间群 P4/mbm（皮尔逊符号 tP12）中结晶，单位晶胞参数分别为 a = 6.9525 (18) Å、c = 4.1962 (16) Å 和 a = 6.9945 (16) Å、c = 4.2020 (14) Å。

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Crystal structure of new quaternary intermetallic compounds R₂MoSi₂C (R = Y, Gd).

The discovery of novel quaternary intermetallic compounds R₂MoSi₂C (R = Y, Gd) in the R-Mo-Si-C system is reported. Their crystal structure was investigated using single-crystal X-ray diffraction. It is shown that the Y₂MoSi₂C and Gd₂MoSi₂C compounds crystallize in the tetragonal space group P4/mbm (Pearson symbol tP12) with unit-cell parameters a = 6.9525 (18) Å, c = 4.1962 (16) Å, and a = 6.9945 (16) Å, c = 4.2020 (14) Å, respectively.

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来源期刊

Acta crystallographica Section B, Structural science, crystal engineering and materials CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

3.60

自引率

5.30%

发文量

期刊介绍： Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles related to the structural science of compounds and materials in the widest sense. Knowledge of the arrangements of atoms, including their temporal variations and dependencies on temperature and pressure, is often the key to understanding physical and chemical phenomena and is crucial for the design of new materials and supramolecular devices. Acta Crystallographica B is the forum for the publication of such contributions. Scientific developments based on experimental studies as well as those based on theoretical approaches, including crystal-structure prediction, structure-property relations and the use of databases of crystal structures, are published.