Calcium nitridonickelate(II) Ca₂NiN₂ has been prepared through a high-temperature and high-pressure azide-mediated redox reaction, demonstrating that this method can stabilise nitrides of late transition metals in relatively high oxidation states. Ca₂NiN₂ crystallizes in the Na₂HgO₂ structure type and displays low-dimensional antiferromagnetic ordering of Ni²⁺ spins.

中文翻译：

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氮化镍酸钙(II) Ca2NiN2中的低维磁性

已经通过高温高压叠氮化物介导的氧化还原反应制备了亚氮基镍酸钙 ( II ) Ca ₂ NiN ₂，表明该方法可以稳定处于较高氧化态的晚期过渡金属氮化物。Ca ₂ NiN ₂以Na ₂ HgO ₂结构类型结晶并显示Ni ²⁺自旋的低维反铁磁有序。