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The First Determination of Eu−H Distances by Neutron Diffraction on the Novel Hydrides EuMg 2 H 6 and EuMgH 4
Author(s) -
Kohlmann Holger,
Gingl Franz,
Hansen Thomas,
Yvon Klaus
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990712)38:13/14<2029::aid-anie2029>3.0.co;2-a
Subject(s) - europium , neutron diffraction , crystallography , diffraction , neutron , materials science , crystal structure , powder diffraction , absorption (acoustics) , chemistry , physics , optics , nuclear physics , luminescence , optoelectronics , composite material
Abstract Despite the high neutron absorption of natural europium, the crystal structures of two Eu hydrides could be solved from powder diffraction data. EuMg 2 D 6 crystallizes in a novel AB 2 X 6 structure type (see picture), EuMgD 4 is isotypic to BaZnF 4 . The mean Eu−D distances are 258 and 253 pm, respectively.