On the crystal structure of Sc2MB6 (M = Rh, Ir) compounds

被引：0

作者：

Salamakha, P.S. ^{[1
]}

Rizzoli, C. ^{[2
]}

Salamakha, L.P. ^{[3
]}

Sologub, O.L. ^{[1
,4
]}

Gonçalves, A. ^{[1
]}

Almeida, M. ^{[1
]}

机构：

[1] Departamento de Quìmica, Instituto Tecnològico e Nuclear, P-2686-953 Sacavèm, Portugal

[2] Dipartimento di Chimica GIAF, Università di Parma, Viale delle Scienze, 43100 Parma, Italy

[3] Department of Physics of Metals, Faculty of Physics, L'Viv National University, Kyryla i Mefodiya str. 6, 79005 L'viv, Ukraine

[4] Research Centre of Low Temperature Studies, L'Viv National University, Dragomanova str. 50, 79005 L'viv, Ukraine

来源：

Journal of Alloys and Compounds | 2005年 / 396卷 / 1-2期

基金：

奥地利科学基金会;

关键词：

Borides - Crystal atomic structure - Iridium - Quenching - Rhodium - Single crystals - Ternary systems - X ray powder diffraction;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Ternary samples Sc2MB6 and ScMB4 (M = Rh, Ir) were synthesized and studied by X-ray powder and single crystal diffraction. The crystal structure of the ternary boride Sc2RhB6, Y2ReB6 structure type, Pbam space group, a = 8.9144(8) Å, b = 11.2105(10) Å, c = 3.4833(3) Å, Z = 4, V = 348.10(5) Å3, ρ = 4.917 g cm-3, μ = 8.216 mm -1 was refined to R = 0.0193, wR2 = 0.0518 from single crystal X-ray diffraction data (Bruker SMART 100 CCD diffractometer, 573 reflections with I > 2σ(Io). The lattice parameters for the isotypic Sc 2IrB6 compound are a = 8.9149(18) Å, b = 11.211(19) Å, c = 3.48367(13) Å (X-ray powder diffraction, Image Plate Huber G 670 camera). No evidence of formation of the ternary ScMB4 (M = Rh, Ir) compounds with YReB4 structure type was obtained. © 2005 Elsevier B.V. All rights reserved.

引用

页码：240 / 242

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