Orthorhombic Yb<sub>5</sub>Si<sub>4</sub> from synchrotronpowder data

Cerny, Radovan; Alami Yadri, Khalid

doi:10.1107/S1600536802023541

Scientific article

English

Orthorhombic Yb₅Si₄ from synchrotronpowder data

ContributorsCerny, Radovan; Alami Yadri, Khalid

Published inActa crystallographica. Section E, vol. 59, no. 2, p. i1-i3

Publication date2003

Abstract

Orthorhombic Yb5Si4 (pentaytterbium tetrasilicide) crystallizes with the structure type Sm5Ge4. However, the two compounds differ in the coordination of some Si (Ge) atoms. Each Si atom in the structure of Yb5Si4 forms one covalent bond with another Si atom (Si-Si distances of 2.45±2.47 A), in contrast to Sm5Ge4, where only half of the Ge atoms are covalently bonded to another Ge atom (Ge-Ge distance of 2.658 A).

Keywords

Powder synchrotron study
T = 293 K
Mean σ(Si-Si) = 0.016A
R factor = 0.074
WR factor = 0.096
Data-to-parameter ratio = 0.0

Affiliation entities

Faculté des sciences / Section de physique / Département de physique de la matière quantique

Research groups

Groupe Cerny

Citation (ISO format)

CERNY, Radovan, ALAMI YADRI, Khalid. Orthorhombic Yb₅Si₄ from synchrotronpowder data. In: Acta crystallographica. Section E, 2003, vol. 59, n° 2, p. i1–i3. doi: 10.1107/S1600536802023541

Article (Published version)

Identifiers

PID : unige:35538
DOI : 10.1107/S1600536802023541

Additional URL for this publicationhttp://scripts.iucr.org/cgi-bin/paper?S1600536802023541

Journal ISSN1600-5368

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Orthorhombic Yb5Si4 from synchrotronpowder data

Technical informations

Orthorhombic Yb₅Si₄ from synchrotronpowder data