New quaternary hydride CeZnSnH<sub>1.5</sub> : structure, Magnetism, and chemical bonding
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | HERMES, Wilfried | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHEVALIER, Bernard | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | RODEWALD, Ute Ch. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MATAR, Samir F. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | WEILL, François | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | SCHELLENBERG, Inga | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | PÖTTGEN, Rainer | |
| hal.structure.identifier | Institute of Inorganic Chemistry [Aachen] [IAC RWTH] | |
| dc.contributor.author | LUEKEN, Heiko | |
| hal.structure.identifier | Institute of Inorganic Chemistry [Aachen] [IAC RWTH] | |
| dc.contributor.author | SPELDRICH, Manfred | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0897-4756 | |
| dc.description.abstractEn | The quaternary hydride CeZnSnH<sub>1.5</sub> was synthesized from a CeZnSn precursor upon hydrogenation at 553 K and 4 MPa H<sub>2</sub> pressure. Single-crystal X-ray diffraction data reveal that the metal atoms adopt an YPtAs-type structure: <i>P</i>6<sub>3</sub>/<i>mmc</i>, <i>a</i> = 449.34(9) and <i>c</i> = 1731.3(4) pm, w<i>R</i>2 = 0.0493, 218 <i>F</i><sup>2</sup> values, and 12 variables. The hydrogen atoms fill three crystallographically independent ZnCe<sub>3</sub> tetrahedral sites, leading to the composition CeZnSnH<sub>1.5</sub>. Hydrogenation anisotropically modifies the unit cell parameters, i.e., 456.7 → 449.34 pm (−1.6%) for <i>a</i> and 1673.8 → 1731.3 pm (+3.4%) for <i>c</i>. This leads to a drastic flattening of the two-dimensional [ZnSn] layers and a decrease of the Zn−Sn distances from 271 to 260 pm. Hydrogenation increases the Curie temperature from 4.8 K for CeZnSn to 7.3 K for CeZnSnH<sub>1.5</sub>. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Hydride | |
| dc.subject.en | Crystal chemistry | |
| dc.subject.en | CeZnSnH1.5 | |
| dc.subject.en | Magnetic properties | |
| dc.subject.en | Electronic structure | |
| dc.title.en | New quaternary hydride CeZnSnH<sub>1.5</sub> : structure, Magnetism, and chemical bonding | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/cm1016504 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Chemistry of Materials | |
| bordeaux.page | 1096-1104 | |
| bordeaux.volume | 23 | |
| bordeaux.issue | 5 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00575849 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00575849v1 | |
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