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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Ca _2Ga _3MgN _5 - A highly condensed nitridogallate
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Ca _2Ga _3MgN _5 - A highly condensed nitridogallate

机译:Ca _2Ga _3MgN _5-高度缩合的亚硝基没食子酸酯

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The nitridogallate Ca _2Ga _3MgN _5 was obtained from reaction of the elements in sodium flux with Na-azide at 760 °C in weld shut niobium ampoules. Crystal structure solution and refinement was carried out on the basis of single-crystal X-ray diffraction data. Ca _2Ga _3MgN _5 [space group C2/m (no. 12), a = 11.160(2), b = 3.2965(7), c = 8.006(2) ?, and β = 109.93(3)°, Z = 2] shows an anionic substructure made up of mixed (Mg/Ga)N _4 tetrahedra, which are sharing both common vertices and edges building a three-dimensional network. The crystal structure of Ca _2Ga _3MgN _5 is related to known alkaline earth nitridosilicates (M II _2Si _5N _8, M ~(II) = Sr, Ba), but is significantly higher condensed due to additional edge-sharing in the anionic substructure.
机译:亚硝基没食子酸盐Ca _2Ga _3MgN _5是由钠焊剂中的元素与叠氮化钠在760°C的焊接闭口安瓿瓶中反应制得的。基于单晶X射线衍射数据进行晶体结构的溶解和细化。 Ca _2Ga _3MgN _5 [空间组C2 / m(编号12),a = 11.160(2),b = 3.2965(7),c = 8.006(2)α,β= 109.93(3)°,Z = 2图1显示了由混合的(Mg / Ga)N _4四面体组成的阴离子亚结构,它们共享共同的顶点和共同构成三维网络的边缘。 Ca _2Ga _3MgN _5的晶体结构与已知的碱土金属氮化硅酸盐(M II _2Si _5N _8,M〜(II)= Sr,Ba)有关,但由于阴离子亚结构中的附加边缘共享,其凝结性更高。

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