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(Sr 2 N)H: Untersuchungen zur Redox‐Intercalation von Wasserstoff in Sr 2 N
Author(s) -
Chemnitzer René,
Auffermann Gudrun,
Többens Daniel M.,
Kniep Rüdiger
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500105
Subject(s) - strontium , crystallography , redox , octahedron , chemistry , crystal structure , deuterium , hydrogen , intercalation (chemistry) , neutron diffraction , hydride , inorganic chemistry , physics , organic chemistry , quantum mechanics
(Sr 2 N)H: On the Redox‐Intercalation of Hydrogen into Sr 2 N Strontium‐nitride‐hydride is obtained as brown‐yellow single phase powder by reaction of strontium‐subnitride (Sr 2 N) with hydrogen (200 bar, 620 K) and subsequent treatment under vacuum (10 −6 bar, 870 K). The structure determination was carried out by a combination of X‐ray and neutron diffraction experiments on a deuterated sample. The elemental composition of the ternary compound was confirmed by means of chemical analyses. (Sr 2 N)D crystallizes in the space group $R{\bar 3}m$ with a = 381.91(2) pm and c = 1887.61(2) pm. Strontium (Sr 2+ ) in the crystal structure of (Sr 2 N)D is arranged with an only slightly distorted ccp‐motif. Nitrogen (N 3− ) and deuterium (D − ) occupy the octahedral voids of the Sr 2+ ‐matrix in an ordered manner resulting in an alternating sequence of layers (anti‐α‐NaFeO 2 ‐type structure).