On the crystal structure of Sc2MB6 (M = Rh, Ir) compounds
- 1. Departamento de Quimica, Instituto Tecnologico e Nuclear, P-2686-953 Sacavem (Portugal)
- 2. Dipartimento di Chimica GIAF, Universita 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. Departamento de Quimica, Instituto Tecnologico e Nuclear, P-2686-953 Sacavem (Portugal) and Research Centre of Low Temperature Studies, L'viv National University, Dragomanova str. 50, 79005 L'viv (Ukraine)
Description
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) A, b = 11.2105(10) A, c = 3.4833(3) A, Z = 4, V = 348.10(5) A3, 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(I o). The lattice parameters for the isotypic Sc2IrB6 compound are a = 8.9149(18) A, b 11.211(19) A, c = 3.48367(13) A (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
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2005.01.010;
- PII
- S0925-8388(05)00019-8;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 396
- Journal Issue
- 1-2
- Journal Page Range
- p. 240-242
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37054623
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BORIDES; CRYSTAL STRUCTURE; IRIDIUM COMPOUNDS; LATTICE PARAMETERS; MONOCRYSTALS; RHODIUM COMPOUNDS; SCANDIUM COMPOUNDS; SPACE GROUPS; X-RAY DIFFRACTION
- Descriptors DEC
- BORON COMPOUNDS; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; REFRACTORY METAL COMPOUNDS; SCATTERING; SYMMETRY GROUPS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.