OURANE, Bassem; GAUDIN, Etienne; ZOUARI, Ridha; COUILLAUD, Samuel; BOBET, Jean-Louis

doi:10.1021/ic401911g

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OURANE, Bassem
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Département de Chimie

GAUDIN, Etienne
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

ZOUARI, Ridha
Département de Chimie

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Inorganic Chemistry. 2013, vol. 52, n° 23, p. 13289-13291

American Chemical Society

Résumé en anglais

The new intermetallic NdNiMg5 was discovered during the study of the Mg-rich part of the Mg-Nd-Ni system. It was synthetized by melting of the constituent elements in a sealed tantalum tube with subsequent annealing. Its structure was determined by X-ray diffraction on a single crystal. Crystal data: orthorhombic system, Cmcm, Z = 4, a = 4.4799(2) Å, b = 9.9827(3) Å, c = 13.7854(10) Å, dcalc = 3.49 g*cm(-3). Its structure is made of infinite layers of Mg atoms that form blocks stacked along the c axis. These blocks, with a close-packed array of Mg atoms, are separated by infinite NiNd layers and connected through short Mg-Mg bonds. In the NiNd layer, the Ni and Nd atoms form an ordered graphite-type network. Antiferromagnetic ordering is observed with TN = 12 K, and the effective magnetic moment μeff is equal to 3.89(1) μB.< Réduire

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Intermetallics

Inorganic compounds

Crystallography

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NdNiMg5, a New Magnesium-Rich Phase with an Unusual Structural Type.

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