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这篇文章是介绍一种新的解释帕脱逊图的方法,利用这个方法可以测定无重原子的晶体结构。应用这方法来测定乙二胺四乙酸的晶体结构,我们得到了一个很好的结果。乙二胺四乙酸的晶体属单斜晶系,空间群是C2h6,晶胞参数为a=13.28?;b=5.64?,c=16.14?和β*=83°45′。在(hol)方向投影的平面群为P2。每个单胞中有四个对称中心。In this paper a new method of interpretation of the Patterson diagram is discribed.. It can be used to determine no-heavy atom crystal structures.Appling this method to determine the structure of E.D.T.A. CH2N(CH7COOH)22 we have obtained a very good result. The crystals are monoclinic, space group C2h6, with parameters a=13.28?,b=5.64?,c=16.14? and β*=83°45′.The plane group of projection on (hol) is P2. Each unit cell has four centres of symmetry.
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中国物理学会期刊
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