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フルテキストURL2008010265.pdf ( 263.4KB ) 公開日 2010-04-16
タイトルCrystal structures of betaine phosphate/Arsenate mixed crystal
作成者Yoshida, Takashi
Mashiyama, Hiroyuki
Mochida, Tomoyuki
作成者ヨミヨシダ, タカシ
マシヤマ, ヒロユキ
モチダ, トモユキ
作成者別表記増山, 博行
作成者所属山口大学大学院理工学研究科(理学)
内容記述(抄録等)Single crystals of a betaine-phosphate/arsenate mixed system (30% P was replaced with As randomly) were investigated by means of X-ray diffraction. The crystal structures of room temperature and of low temperature (20 K) were determined. At room temperature, the least-squares calculation converged at the R factor 3.6% with 1038 reflections. The structure is isomorphous to pure betaine phosphate. For the low-temperature structure the R factor converged at 4.3% with 4896 reflections (3.7% with 2987 normal reflections and 9.6% with 1909 superlattice reflections). The structure analysis clarifies that the hydrogen atoms of the phosphoric acid between neighboring phosphate tetrahedra are ordered in the low temperature phase resulting the superstructure (the unit cell dimension along the a-axis is doubled). By replacing P with As up to 30% in P(As)O_4 tetrahedra, the unit cell structure is changed little; only the mean size of the tetrahedra is enlarged by 2.2%.
本文言語eng
著者キーワードcrystal structure
X-ray diffraction
betaine phosphate
arsenate mixed crystal
資料タイプtext
ファイル形式application/pdf
出版者The Physical Society of Japan
出版者ヨミニホン ブツリ ガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0031-9015
NCIDAA00704814
掲載誌名Journal of the Physical Society of Japan
70
6
開始ページ1598
終了ページ1603
発行日2001
DOIinfo:doi/10.1143/JPSJ.70.1598
関連情報URL(IsPartOf)http://www.ipap.jp/jpsj/index.html
権利関係Copyright c (2002)The Physical Society of Japan
著者版/出版社版著者版
リポジトリID2008010265
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010265