Volume 38, Issue 13-14 pp. 2029-2032
Communication

The First Determination of Eu−H Distances by Neutron Diffraction on the Novel Hydrides EuMg2H6 and EuMgH4

Holger Kohlmann

Holger Kohlmann

Laboratoire de Cristallographie Université de Genève Quai Ernest Ansermet 24, CH-1211 Genève 4 (Switzerland), Fax: (+41) 22-7026108

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Franz Gingl

Franz Gingl

Laboratoire de Cristallographie Université de Genève Quai Ernest Ansermet 24, CH-1211 Genève 4 (Switzerland), Fax: (+41) 22-7026108

[+] Current address: National Institute of Materials and Chemical Research„ Tsukuba (Japan)

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Thomas Hansen

Thomas Hansen

Institut Laue-Langevin, Grenoble (France)

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Klaus Yvon

Klaus Yvon

Laboratoire de Cristallographie Université de Genève Quai Ernest Ansermet 24, CH-1211 Genève 4 (Switzerland), Fax: (+41) 22-7026108

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Abstract

Despite the high neutron absorption of natural europium, the crystal structures of two Eu hydrides could be solved from powder diffraction data. EuMg2D6 crystallizes in a novel AB2X6 structure type (see picture), EuMgD4 is isotypic to BaZnF4. The mean Eu−D distances are 258 and 253 pm, respectively.

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