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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1946| High-pressure synthesis of β-Ir4B5 and determination of the compressibility of various iridium borides | |
| Benedikt Petermüller Christopher Neun Klaus Wurst Lkhamsuren Bayarjargal Dominik Zimmer Wolfgang Morgenroth MIGUEL AVALOS BORJA IGNACIO GUADALUPE BECERRIL JUAREZ Martin Johann Mühlbauer Björn Winkler Hubert Huppertz | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| http://dx.doi.org/10.1021/acs.inorgchem.8b01541 | |
| "A new iridium boride, beta-Ir4B5, was synthesized under high-pressure/high-temperature conditions of 10.5 GPa and 1500 degrees C in a multianvil press with a Walker-type module. The new modification beta-Ir4B5 crystallizes in a new structure type in the orthorhombic space group Pnma (no. 62) with the lattice parameters a = 10.772(2) angstrom, b = 2.844(1) angstrom, and c = 6.052(2) angstrom with R1 = 0.0286, wR2 = 0.0642 (all data), and Z = 2. The structure was determined by single-crystal X-ray and neutron powder diffraction on samples enriched in B-11. The compound is built up by an alternating stacking of boron and iridium layers with the sequence ABA'B'. Additionally, microcalorimetry, hardness, and compressibility measurements of the binary iridium borides alpha-Ir4B5, beta-Ir4B5, Ir5B4, hexagonal Ir4B3-x and orthorhombic Ir4B3-x were carried out and theoretical investigations based on density function theory (DFT) were employed to complement a comprehensive evaluation of structure-property relations. The incorporation of boron into the structures does not enhance the compressibility but leads to a significant reduction of the bulk moduli and elastic constants in comparison to elemental iridium." | |
| American Chemical Society | |
| 2018 | |
| Artículo | |
| Inorg. Chem. 2018, 57, 16, 10341-10351 | |
| QUÍMICA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |
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| InorgChem57(2018)10341.pdf | 3.48 MB | Adobe PDF | Visualizar/Abrir |