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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structures of two alkaline earth (M = Ba and Sr) dimanganese(II) iron(III) tris-(orthophosphates)
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Crystal structures of two alkaline earth (M = Ba and Sr) dimanganese(II) iron(III) tris-(orthophosphates)

机译:两种碱土金属(M = Ba和Sr)二锰(II)铁(III)三(正磷酸盐)的晶体结构

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Two new orthophosphates, BaMn2Fe(PO4)3 [barium dimanganese(II) iron(III) tris-(orthophosphate)] and SrMn2Fe(PO4)3 [strontium dimanganese(II) iron(III) tris-(orthophosphate)], were synthesized by solid-state reactions. They are isotypic and crystallize in the ortho-rhom-bic system with space group type Pbcn. Their crystal structures comprise infinite zigzag chains of edge-sharing FeO6 octa-hedra (point group symmetry .2.) and Mn2O10 double octa-hedra running parallel to [001], linked by two types of PO4 tetra-hedra. The so-formed three-dimensional framework delineates channels running along [001], in which the alkaline earth cations (site symmetry .2.) are located within a neighbourhood of eight O atoms.
机译:合成了两种新的正磷酸盐BaMn2Fe(PO4)3 [三锰正磷酸钡(II)和SrMn2Fe(PO4)3 [正磷酸三锰锶(II)锶]。通过固态反应。它们是同型的,并且在空间群类型为Pbcn的正交斜方晶系中结晶。它们的晶体结构包括边缘共享的FeO6八面体(点组对称性.2。)和Mn2O10双八面体平行于[001]的无限之字形链,由两种类型的PO4四面体连接。如此形成的三维框架描述了沿[001]延伸的通道,其中碱土金属阳离子(位点对称性2.)位于8个O原子附近。

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