Novel Class of Rhenium Borides Based on Hexagonal Boron Networks Interconnected by Short B₂ Dumbbells
| dc.date.accessioned | 2023-04-20T13:34:32Z | |
| dc.date.available | 2023-04-20T13:34:32Z | |
| dc.date.issued | 2022-09-06 | |
| dc.identifier | doi:10.17170/kobra-202304207856 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/14607 | |
| dc.language.iso | eng | |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | Boron | eng |
| dc.subject | Compressibility | eng |
| dc.subject | Crystal structure | eng |
| dc.subject | Diffraction | eng |
| dc.subject | Rhenium | eng |
| dc.subject.ddc | 540 | |
| dc.title | Novel Class of Rhenium Borides Based on Hexagonal Boron Networks Interconnected by Short B₂ Dumbbells | eng |
| dc.type | Aufsatz | |
| dcterms.abstract | Transition metal borides are known due to their attractive mechanical, electronic, refractive, and other properties. A new class of rhenium borides was identified by synchrotron single-crystal X-ray diffraction experiments in laser-heated diamond anvil cells between 26 and 75 GPa. Recoverable to ambient conditions, compounds rhenium triboride (ReB₃) and rhenium tetraboride (ReB₄) consist of close-packed single layers of rhenium atoms alternating with boron networks built from puckered hexagonal layers, which link short bonded (∼1.7 Å) axially oriented B2 dumbbells. The short and incompressible Re–B and B–B bonds oriented along the hexagonal c-axis contribute to low axial compressibility comparable with the linear compressibility of diamond. Sub-millimeter samples of ReB₃ and ReB₄ were synthesized in a large-volume press at pressures as low as 33 GPa and used for material characterization. Crystals of both compounds are metallic and hard (Vickers hardness, HV = 34(3) GPa). Geometrical, crystal-chemical, and theoretical analysis considerations suggest that potential ReBₓ compounds with x > 4 can be based on the same principle of structural organization as in ReB₃ and ReB₄ and possess similar mechanical and electronic properties | eng |
| dcterms.accessRights | open access | |
| dcterms.creator | Bykova, Elena | |
| dcterms.creator | Johansson, Erik | |
| dcterms.creator | Bykov, Maxim | |
| dcterms.creator | Chariton, Stella | |
| dcterms.creator | Fei, Hongzhan | |
| dcterms.creator | Ovsyannikov, Sergey V. | |
| dcterms.creator | Aslandukova, Alena | |
| dcterms.creator | Gabel, Stefan | |
| dcterms.creator | Holz, Hendrik | |
| dcterms.creator | Merle, Benoit | |
| dcterms.creator | Alling, Björn | |
| dcterms.creator | Abrikosov, Igor Anatolievich | |
| dcterms.creator | Smith, Jesse S. | |
| dcterms.creator | Prakapenka, Vitali B. | |
| dcterms.creator | Katsura, Tomoo | |
| dcterms.creator | Dubrovinskaia, Natalia | |
| dcterms.creator | Goncharov, Alexander F. | |
| dcterms.creator | Dubrovinsky, Leonid | |
| dcterms.extent | 8138−8152 | |
| dc.relation.doi | doi:10.1021/acs.chemmater.2c00520 | |
| dc.subject.swd | Bor | ger |
| dc.subject.swd | Rhenium | ger |
| dc.subject.swd | Kristallstruktur | ger |
| dc.type.version | publishedVersion | |
| dcterms.source.identifier | eissn:1520-5002 | |
| dcterms.source.journal | Chemistry of materials | eng |
| dcterms.source.volume | Volume 34 | |
| kup.iskup | false |
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