Alena Aslandukova, Andrey Aslandukov, Fariia Iasmin Akbar, Yuqing Yin, Florian Trybel, Michael Hanfland, Anna Pakhomova, Stella Chariton, Vitali Prakapenka, Natalia Dubrovinskaia, Leonid Dubrovinsky
{"title":"可在常温条件下回收的高压 oC16-YBr3 多晶体:从三维框架到层状材料","authors":"Alena Aslandukova, Andrey Aslandukov, Fariia Iasmin Akbar, Yuqing Yin, Florian Trybel, Michael Hanfland, Anna Pakhomova, Stella Chariton, Vitali Prakapenka, Natalia Dubrovinskaia, Leonid Dubrovinsky","doi":"10.1021/acs.inorgchem.4c00813","DOIUrl":null,"url":null,"abstract":"Exfoliation of graphite and the discovery of the unique properties of graphene─graphite’s single layer─have raised significant attention to layered compounds as potential precursors to 2D materials with applications in optoelectronics, spintronics, sensors, and solar cells. In this work, a new orthorhombic polymorph of yttrium bromide, <i>oC</i>16-YBr<sub>3</sub> was synthesized from yttrium and CBr<sub>4</sub> in a laser-heated diamond anvil cell at 45 GPa and 3000 K. The structure of <i>oC</i>16-YBr<sub>3</sub> was solved and refined using in situ synchrotron single-crystal X-ray diffraction. At high pressure, it can be described as a 3D framework of YBr<sub>9</sub> polyhedra, but upon decompression below 15 GPa, the structure motif changes to layered, with layers comprising edge-sharing YBr<sub>8</sub> polyhedra weakly bonded by van der Waals interactions. The layered <i>oC</i>16-YBr<sub>3</sub> material can be recovered to ambient conditions, and according to Perdew–Burke–Ernzerhof–density functional theory calculations, it exhibits semiconductor properties with a band gap that is highly sensitive to pressure. This polymorph possesses a low exfoliation energy of 0.30 J/m<sup>2</sup>. Our results expand the list of layered trivalent rare-earth metal halides and provide insights into how high pressure alters their structural motifs and physical properties.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-Pressure oC16-YBr3 Polymorph Recoverable to Ambient Conditions: From 3D Framework to Layered Material\",\"authors\":\"Alena Aslandukova, Andrey Aslandukov, Fariia Iasmin Akbar, Yuqing Yin, Florian Trybel, Michael Hanfland, Anna Pakhomova, Stella Chariton, Vitali Prakapenka, Natalia Dubrovinskaia, Leonid Dubrovinsky\",\"doi\":\"10.1021/acs.inorgchem.4c00813\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Exfoliation of graphite and the discovery of the unique properties of graphene─graphite’s single layer─have raised significant attention to layered compounds as potential precursors to 2D materials with applications in optoelectronics, spintronics, sensors, and solar cells. In this work, a new orthorhombic polymorph of yttrium bromide, <i>oC</i>16-YBr<sub>3</sub> was synthesized from yttrium and CBr<sub>4</sub> in a laser-heated diamond anvil cell at 45 GPa and 3000 K. The structure of <i>oC</i>16-YBr<sub>3</sub> was solved and refined using in situ synchrotron single-crystal X-ray diffraction. At high pressure, it can be described as a 3D framework of YBr<sub>9</sub> polyhedra, but upon decompression below 15 GPa, the structure motif changes to layered, with layers comprising edge-sharing YBr<sub>8</sub> polyhedra weakly bonded by van der Waals interactions. The layered <i>oC</i>16-YBr<sub>3</sub> material can be recovered to ambient conditions, and according to Perdew–Burke–Ernzerhof–density functional theory calculations, it exhibits semiconductor properties with a band gap that is highly sensitive to pressure. This polymorph possesses a low exfoliation energy of 0.30 J/m<sup>2</sup>. Our results expand the list of layered trivalent rare-earth metal halides and provide insights into how high pressure alters their structural motifs and physical properties.\",\"PeriodicalId\":40,\"journal\":{\"name\":\"Inorganic Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Inorganic Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.inorgchem.4c00813\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.inorgchem.4c00813","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
High-Pressure oC16-YBr3 Polymorph Recoverable to Ambient Conditions: From 3D Framework to Layered Material
Exfoliation of graphite and the discovery of the unique properties of graphene─graphite’s single layer─have raised significant attention to layered compounds as potential precursors to 2D materials with applications in optoelectronics, spintronics, sensors, and solar cells. In this work, a new orthorhombic polymorph of yttrium bromide, oC16-YBr3 was synthesized from yttrium and CBr4 in a laser-heated diamond anvil cell at 45 GPa and 3000 K. The structure of oC16-YBr3 was solved and refined using in situ synchrotron single-crystal X-ray diffraction. At high pressure, it can be described as a 3D framework of YBr9 polyhedra, but upon decompression below 15 GPa, the structure motif changes to layered, with layers comprising edge-sharing YBr8 polyhedra weakly bonded by van der Waals interactions. The layered oC16-YBr3 material can be recovered to ambient conditions, and according to Perdew–Burke–Ernzerhof–density functional theory calculations, it exhibits semiconductor properties with a band gap that is highly sensitive to pressure. This polymorph possesses a low exfoliation energy of 0.30 J/m2. Our results expand the list of layered trivalent rare-earth metal halides and provide insights into how high pressure alters their structural motifs and physical properties.
期刊介绍:
Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.