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Issue 12, 1996
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Subnitrides with the new cluster Ba14CaN6

Arndt Simon  and  Ulrich Steinbrenner 

Abstract

Four crystalline subnitrides have been isolated by reacting Ba, (Sr), Ca in Na or NaK alloy with nitrogen from different sources. According to single crystal X-ray structure analyses these phases have compositions NanBa14CaN6(n= 14, 17, 21 and 22), and they contain the new Ba14CaN6 cluster, which consists of six face-sharing Ba5CaN octahedra with Ca in the centre of the cluster. This ion cluster is inserted into different metallic substructures formed by the Na atoms. Na22Ba14CaN6 exhibits a characteristic disorder which is due to frustration effects and is closely related to the disorder of an antiferromagnetic Ising spin system in a two-dimensional triangular lattice.

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Article type: Paper
DOI: 10.1039/FT9969202117
Citation: J. Chem. Soc., Faraday Trans., 1996,92, 2117-2123
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    Subnitrides with the new cluster Ba14CaN6

    A. Simon and U. Steinbrenner, J. Chem. Soc., Faraday Trans., 1996, 92, 2117
    DOI: 10.1039/FT9969202117

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