首页> 外文期刊>Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics >1'Bi~(2+)/M~(2+)Oxyphosphate:A Continuous Series of Polycationic Species from the 1D Single Chain to the 2D Planes.Part 2:Crystal Structure of Three Original Structural Types Showing a Combination of New Ribbonlike Polycations
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1'Bi~(2+)/M~(2+)Oxyphosphate:A Continuous Series of Polycationic Species from the 1D Single Chain to the 2D Planes.Part 2:Crystal Structure of Three Original Structural Types Showing a Combination of New Ribbonlike Polycations

机译:1'Bi〜(2 +)/ M〜(2+)氧代磷酸盐:从一维单链到二维平面的一系列连续的聚阳离子物种。第二部分:三种原始结构类型的晶体结构,显示出新型带状聚阳离子的组合

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With the assistance of structural models deduced from the high-resolution electron microscope(HREM)investigation presented in Part 1 of this work,three new structural types were pointed out in Bi_2O_3-MO-P_2O_5 ternary systems.Their crystal structures are built on the arrangement of 2D polycationic ribbons formed of edge-sharing O(Bi,M)_4 tetrahedra and isolated by PO_4 groups.Prior to this study,materials with ribbons up to n = 3 tetrahedra wide have been discovered.The original structures presented here display longer n = 4-6 cases,which suggests a possible continuous series of polycationic entities that range from the single chain(one tetrahedron wide)to the infinite[Bi_2O_2]~(2+)Aurivillius layer.The ribbons with n > 3 show strong structural modifications that are able to bring a good ribbon-phosphate cohesion.In addition to these fascinating structural results,this work fully confirms the validity of the decoding established from HREM images of a single crystallite in inhomogeneous mixtures.
机译:借助本文第1部分中提出的高分辨率电子显微镜(HREM)研究推导的结构模型,在Bi_2O_3-MO-P_2O_5三元体系中指出了三种新的结构类型。由O_(Bi,M)_4边共享O_(Bi,M)_4四面体形成并被PO_4组隔离的2D聚阳离子带。在此研究之前,已经发现了带宽度最大为n = 3四面体的材料。此处显示的原始结构显示更长的n = 4-6例,这表明可能存在一系列连续的聚阳离子实体,范围从单链(一个四面体宽)到无限的[Bi_2O_2]〜(2+)耳孔层。n> 3的带显示出强烈的结构修饰除了这些引人入胜的结构结果外,这项工作还充分证实了由非均质单晶的HREM图像建立的解码的有效性。的混合物。

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