[Sans titre]
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | DINGES, Tim | |
| 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 für Physikalische Chemie | |
| dc.contributor.author | ECKERT, Helmut | |
| hal.structure.identifier | Institut für Anorganische und Analytische Chemie | |
| dc.contributor.author | PÖTTGEN, Rainer | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0044-2313 | |
| dc.description.abstractEn | The silicide LiRh<sub>2</sub>Si<sub>2</sub> was synthesized from the elements in a sealed niobium ampoule and was characterized by X-ray powder and single-crystal diffraction: FeMo<sub>2</sub>B<sub>2</sub> type (ordered version of U<sub>3</sub>Si<sub>2</sub>), <i>P</i>4/<i>mbm</i>, <i>a</i> = 698.1(5), <i>c</i> = 274.6(4) pm, <i>wR</i>2 = 0.0842, 186 <i>F</i><sup>2</sup> values and 11 variables. The rhodium and silicon atoms build up a covalently bonded three-dimensional [Rh<sub>2</sub>Si<sub>2</sub>] network (244-248 pm Rh-Si), in which the lithium atoms fill larger channels which extend along the <i>c</i> axis. A similar structural arrangement occurs in LiY<sub>2</sub>Si<sub>2</sub>, however, the strong difference in size between rhodium and yttrium leads to different distortions. LiRh<sub>2</sub>Si<sub>2</sub> and LiY<sub>2</sub>Si<sub>2</sub> are isopointal rather than isotypic. The crystal chemistry and bonding peculiarities of both silicides are discussed on the basis of ab initio electronic structure calculations. <sup>7</sup>Li solid-state NMR studies on LiRh<sub>2</sub>Si<sub>2</sub> revealed restricted motional narrowing due to lithium atomic diffusion in the temperature range 170-450 K. | |
| dc.language.iso | en | |
| dc.publisher | Wiley-VCH Verlag | |
| dc.subject.en | Lithium compounds | |
| dc.subject.en | Crystal chemistry | |
| dc.subject.en | Chemical bonding | |
| dc.subject.en | Density functional calculations | |
| dc.subject.en | Solid State NMR spectroscopy | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1002/zaac.200900102 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie | |
| bordeaux.page | 1894-1903 | |
| bordeaux.volume | 635 | |
| bordeaux.issue | 12 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00435827 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00435827v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Inorganic%20and%20General%20Chemistry%20/%20Zeitschrift%20f%C3%BCr%20anorganische%20und%20allgemeine%20Chemie&rft.date=2009&rft.volume=635&rft.issue=12&rft.spage=1894-1903&rft.epage=1894-1903&rft.eissn=0044-2313&rft.issn=0044-2313&rft.au=DINGES,%20Tim&RODEWALD,%20Ute%20Ch.&MATAR,%20Samir%20F.&ECKERT,%20Helmut&P%C3%96TTGEN,%20Rainer&rft.genre=article |
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