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Is There a 'Most Chiral Tetrahedron'?

机译:是否有“大多数手性四面体”?

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A degree of chirality is a function that purports to measure the amount of chirality of an object:it is equal for enantiomers,vanishes only for achiral or degenerate objects and is similarity invariant,dimensionless and normalisable to the interval [0,1]-For a tetrahedron of non-zero three-dimensional volume,achirality is synonymous with the presence of a mirror plane containing one edge and bisecting its opposite,and hence it is easy to design degree-of-chirality functions based on edge length that incorporate all constraints.It is shown that such functions can have largest maxima at widely different points in the tetrahedral shape space,and by incorporation of appropriate factors,the maxima can be pushed to any point in the space.Thus the phrase "most chiral tetrahedron" has no general meaning:any chiral tetrahedron is the most chiral for some legitimate choice of degree of chirality.
机译:手性度是一种功能,旨在测量对象的手性量:对映异构体相等,仅对非手性或简并对象消失,并且相似性不变,无量纲且可标准化为[0,1]-区间非零三维体积的四面体,非手性等同于存在一个包含一个边缘并将其相对的两等分的镜像平面,因此易于根据包含所有约束的边缘长度来设计手性度函数结果表明,此类函数在四面体形状空间中的极大不同点上具有最大最大值,并且通过合并适当的因子,可以将最大值推到空间中的任何点。因此,“大多数手性四面体”一词没有一般含义:对于某些合理选择的手性度,任何手性四面体都是最手性的。

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