多解型Fourier综合法

Patterson法多解问题是晶体结构分析中的一个具有普遍性质的问题。用分量关系式与多角型相角关系式等直接法解决这类多解问题时,需要以一个赝结构模型做为方法实施的基础,多解型Fourier综合法是得到赝结构图象的一个切实可行的方法,文末以一个双解结构为例成功地进行了试验。

FOURIER SYNTHESES OF THE MULTIPLE-SOLUTION TYPE

The problem of multiple solution is frequently a result of Patterson analysis. This problem can be solved by making use of the component relations or the phase relations of the multiple-solution type. A pseudo structure model containing simultaneously the actual structure and its symmetrical equivalents is in turn the basis for the application of the component relations or the phase relations of the multiple-solution type. The so-called Multiple-solution Fourier Syntheses is the Fourier syntheses based on the whole or partial pseudo structure model. This model can be developed and improved by this type of Fourier syntheses. A practical example is given.