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The gold-rich indide Sr_5Au_(13.5)In_(8.5)

机译:富含金的金属Sr_5Au_(13.5)In_(8.5)

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摘要

The orthorhombic indide Sr_5Au_(13.5)In_(8.5) was obtained during phase-analytical studies of the Sr-Au-In system. This new indide is formed upon melting of the elements in a sealed tantalum tube. Sr_5Au_(13.5)In_(8.5) was characterized on the basis of powder and single-crystal X-ray diffraction: Pmmn, a = 476.37(9), b = 2927.5(9), c = 894.9(2) pm, wR~2 = 0.056, 2355 F2 values, 87 variables. The structure is of a new type. The gold and indium atoms build up a complex three-dimensional [Au_(13.5)In_(8.5)] polyanionic network in which the strontium atoms fill channels which extend in the a direction. One site within the polyanion shows Au/In mixing. The Sr_5Au _(13.5)In_(8.5) structure is composed of SrAu_3In_3-and SrAu-related slabs.
机译:在Sr-Au-In系统的相分析研究中获得了正交晶系Sr_5Au_(13.5)In_(8.5)。在密封的钽管中熔化元素后形成新的茚化物。基于粉末和单晶X射线衍射对Sr_5Au_(13.5)In_(8.5)进行了表征:Pmmn,a = 476.37(9),b = 2927.5(9),c = 894.9(2)pm,wR〜 2 = 0.056,2355 F2值,87个变量。该结构是新型的。金和铟原子构成一个复杂的三维[Au_(13.5)In_(8.5)]聚阴离子网络,其中锶原子填充沿a方向延伸的通道。聚阴离子中的一个位点显示Au / In混合。 Sr_5Au _(13.5)In_(8.5)结构由SrAu_3In_3-和与SrAu相关的平板组成。

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