X-ray diffraction study of a pseudo single crystal prepared from a crystal belonging to point group 2
X-ray diffraction study of a pseudo single crystal prepared from a crystal belonging to point group 2
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由属于点群 2 的晶体制备的伪单晶的 X 射线衍射研究
DOI：
10.1107/s0021889809048006
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发表时间：
2010
影响因子：
6.1
通讯作者：
Kazuaki Aburaya
中科院分区：
文献类型：
--
作者：
F. Kimura;Tsunehisa Kimura;Wataru Oshima;M. Maeyama;Kazuaki Aburaya
从蔗糖粉末制备假单晶（基质树脂和粉末微晶的复合物，其中单个微晶三维排列），并研究其X射线衍射图案。使悬浮在UV可固化树脂前体中的蔗糖晶体的粉末经受磁性对准以三维地对准各个微晶，然后使树脂前体光聚合以保持该取向。由此获得的假单晶产生了与孪晶产生的X射线衍射图相似的良好分辨的X射线衍射图。的孪生取向的起源解释的磁化率轴的对称性和晶体对称性（点群2）的蔗糖之间的相互作用。使用假单晶溶解的蔗糖的晶体结构与使用单晶溶解的蔗糖的晶体结构非常一致。
A pseudo single crystal (a composite of matrix resin and powder crystallites, wherein the individual crystallites are aligned three-dimensionally) was prepared from a powder of sucrose, and its X-ray diffraction pattern was studied. A powder of sucrose crystals suspended in a UV-curable resin precursor was subjected to magnetic alignment in order to align the individual crystallites three-dimensionally, and then the resin precursor was photopolymerized to maintain this orientation. The pseudo single crystal thus obtained produced a well resolved X-ray diffraction profile that is similar to that produced by a twin crystal. The origin of the twin orientation was explained in terms of the interplay between the symmetry of magnetic susceptibility axes and the crystal symmetry (point group 2) of sucrose. The crystal structure of sucrose solved using the pseudo single crystal was in excellent agreement with that solved using a single crystal.
使用随时间变化的椭圆磁场进行三维晶体对准。
DOI：
--
发表时间：
2005
期刊：
Langmuir 21
影响因子：
--
作者：
深井周也;T.Kimura
通讯作者：
T.Kimura