硬脂酸C型的晶体结构

V. Malta, G. Celotti, R. Zannetti, A. F. Martelli
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引用次数: 76

摘要

通过x射线粉末衍射图测定了C型硬脂酸的晶体结构,晶体为单斜晶,空间群为P21/a,单胞尺寸为a= 9.36, b= 4.95, C = 50.7 a, β= 128°15′,Z= 4。用试错法测定了晶体结构的r0·086。将其结构参数与同类化合物进行了比较,特别是与多晶B型的同一酸进行了比较。
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Crystal structure of the C form of stearic acid
The crystal structure of the C form of stearic acid has been determined from X-ray powder diffraction patterns, The crystals are monoclinic, space group P21/a, with unit-cell dimensions: a= 9·36, b= 4·95, c= 50·7 A. β= 128 °15′ and Z= 4. The crystal structure has been determined by trial-and-error methods to R 0·086. The structural parameters are compared with those of similar compounds, in particular the same acid in the polymorphous B form.
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