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Abstract

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 equation image 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).