Rare earth metal-rich indides RE{sub 14}Rh{sub 3-x}In{sub 3} (RE=Y, Dy, Ho, Er, Tm, Lu)

Journal Article · Sat Sep 15 00:00:00 EDT 2007 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2007.06.005· OSTI ID:21043827

Zaremba, Roman ^[1]; Poettgen, Rainer ^[1]

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1. Institut fuer Anorganische und Analytische Chemie, Universitaet Muenster, Corrensstrasse 30, D-48149 Muenster (Germany)

The rare earth (RE) metal-rich indides RE{sub 14}Rh{sub 3-x}In{sub 3} (RE=Y, Dy, Ho, Er, Tm, Lu) can be synthesized from the elements by arc-melting or induction melting in tantalum crucibles. They were investigated by X-ray diffraction on powders and single crystals: Lu{sub 14}Co{sub 3}In{sub 3} type, space group P4{sub 2}/nmc, Z=4, a=961.7(1), c=2335.5(5) pm, wR2=0.052, 2047 F{sup 2} values, 62 variables for Y{sub 14}Rh{sub 3}In{sub 3}, a=956.8(1), c=2322.5(5) pm, wR2=0.068, 1730 F{sup 2} values, 63 variables for Dy{sub 14}Rh{sub 2.89(1)}In{sub 3}, a=952.4(1), c=2309.2(5) pm, wR2=0.041, 1706 F{sup 2} values, 63 variables for Ho{sub 14}Rh{sub 2.85(1)}In{sub 3}, a=948.6(1), c=2302.8(5) pm, wR2=0.053, 1977 F{sup 2} values, 63 variables for Er{sub 14}Rh{sub 2.86(1)}In{sub 3}, a=943.8(1), c=2291.5(5) pm, wR2=0.065, 1936 F{sup 2} values, 63 variables for Tm{sub 14}Rh{sub 2.89(1)}In{sub 3}, and a=937.8(1), c=2276.5(5) pm, wR2=0.050, 1637 F{sup 2} values, 63 variables for Lu{sub 14}Rh{sub 2.74(1)}In{sub 3}. Except Yb{sub 14}Rh{sub 3}In{sub 3}, the 8g Rh1 sites show small defects. Striking structural motifs are rhodium-centered trigonal prisms formed by the RE atoms with comparatively short Rh-RE distances (271-284 pm in Y{sub 14}Rh{sub 3}In{sub 3}). These prisms are condensed via common corners and edges building two-dimensional polyhedral units. Both crystallographically independent indium sites show distorted icosahedral coordination. The icosahedra around In2 are interpenetrating, leading to In2-In2 pairs (309 pm in Y{sub 14}Rh{sub 3}In{sub 3}). - Graphical abstract: Condensed [RhRE{sub 6}] trigonal prisms in RE{sub 14}Rh{sub 3}In{sub 3} indides.

• OSTI ID: 21043827
• Journal Information: Journal of Solid State Chemistry, Vol. 180, Issue 9; Other Information: DOI: 10.1016/j.jssc.2007.06.005; PII: S0022-4596(07)00231-9; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CRUCIBLES
DYSPROSIUM COMPOUNDS
ERBIUM COMPOUNDS
HOLMIUM COMPOUNDS
INDIUM COMPOUNDS
INTERMETALLIC COMPOUNDS
LUTETIUM COMPOUNDS
MELTING
MONOCRYSTALS
RHODIUM COMPOUNDS
SPACE GROUPS
TANTALUM
TETRAGONAL LATTICES
THULIUM COMPOUNDS
X-RAY DIFFRACTION
YTTERBIUM COMPOUNDS