Complex 5,8 and 9 belong to non - centrosymmetric trigonal space group P 3 _ 121.

其中,配合物5、8和9都属于三方晶系, 非 中心对称的P3121空间群.

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Trigonal tongue cover, generous sculpt, easy to open.

三角形舌盖, 造型大方,方便开启.

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The structure shows a distorted trigonal bipyramidal configuration with five - coordinations to a central tin atom.

结果表明,化合物中锡原子呈五配位畸变三角双锥构型.

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A new calculating method has been proposed for the elongation and twist of trigonal prism.

建立了一种新的三棱柱配位结构伸缩变形和扭曲变形的计算方法.

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