(Sr2N)H: Untersuchungen zur Redox‐Intercalation von Wasserstoff in Sr2N

Abstract (Sr2N)H: On the Redox‐Intercalation of Hydrogen into Sr2N Strontium‐nitride‐hydride is obtained as brown‐yellow single phase powder by reaction of strontium‐subnitride (Sr2N) 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. (Sr2N)D crystallizes in the space group R 3m with a = 381.91(2) pm and c = 1887.61(2) pm. Strontium (Sr2+) in the crystal structure of (Sr2N)D is arranged with an only slightly distorted ccp‐motif. Nitrogen (N3−) and deuterium (D−) occupy the octahedral voids of the Sr2+‐matrix in an ordered manner resulting in an alternating sequence of layers (anti‐α‐NaFeO2‐type structure).