1 0 0 0 OA 試料準備から測定まで
- 著者
- 藤井 孝太郎 植草 秀裕
- 出版者
- 日本結晶学会
- 雑誌
- 日本結晶学会誌 (ISSN:03694585)
- 巻号頁・発行日
- vol.53, no.3, pp.170-177, 2011-06-30 (Released:2011-07-13)
- 参考文献数
- 14
- 被引用文献数
- 3 2
Techniques to prepare the sample and strategies to measure powder X-ray diffraction data for ab initio crystal structure analysis of organic and organometallic compound are shown together with an introduction to typical optics of powder X-ray diffractometry.
1 0 0 0 OA 粉末X線回折データを用いる有機化合物の結晶構造解析
- 著者
- 津江 広人 堀口 雅弘 田村 類 藤井 孝太郎 植草 秀裕
- 出版者
- The Society of Synthetic Organic Chemistry, Japan
- 雑誌
- 有機合成化学協会誌 (ISSN:00379980)
- 巻号頁・発行日
- vol.65, no.12, pp.1203-1212, 2007-12-01 (Released:2010-10-20)
- 参考文献数
- 88
- 被引用文献数
- 35 51
A single crystal X-ray diffraction method is the most powerful technique for the crystal structure determination of both organic and inorganic compounds. However, a number of organic compounds crystallize in a form of polycrystalline powder rather than a single crystal of suitable size and quality for X-ray crystallographic analysis. Recent remarkable developments of both software and hardware have turned X-ray powder diffraction method into another significant technique for solving crystal structure. In fact, not a few crystal structures solved from the powder diffraction data of organic compounds have been published in scientific papers. At the same time, however, it is also true that crystal structure solution from powder data is still a challenging subject; indeed, the structure solution cannot be executed in such an automatic manner as established in the single crystal method. In this article, we describe the details of the structure solution processes from X-ray powder diffraction data, together with the experimental know-how gained from our experiences.
1 0 0 0 OA d10金属酸化物新イオン伝導体の構造デザイン
我々の研究プロジェクト「d10金属酸化物新イオン伝導体の構造デザイン」の概要を記す。Pr2(Ni,Cu,Ga)O4イオン伝導性材料ではNi2.5+に比べて高い価数を持つGa3+を添加することで格子間酸素量(キャリア濃度)が増加して酸素透過率が向上すること見いだされた。新物質探索の結果、新しい構造ファミリーNdBaInO4を発見した。SrをNdBaInO4に添加すると酸化物イオン伝導度が向上することも見出した。Pr2(Ni,Cu,Ga)O4, PrBaCo2O5.5+delta, Ce0.5Zr0.5O2の酸化物イオンの拡散経路を研究した。K2NiF4型A2BO4酸化物の異方性熱膨張を研究した。