Crystal Structure and Transitions for Monoclinic KH_2PO_4 Crystal(Condensed matter: structure and mechanical and thermal properties)
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概要
- 論文の詳細を見る
A monoclinic form of potassium dihydrogen phosphate, KH_2PO_4, crystal has been crystallized. X-ray diffraction and differential scanning calorimetry measurements have been performed on this compound. The space group symmetry (monoclinic P2_1) and the crystal structure of this compound are determined at room temperature. It has been found that there are ten possible O-H-O hydrogen bonds with O-O distances in the range from 2.561 (3) to 2.642 (3) Å. Five transitions are found at temperatures around 432, 483, 512, 544, and 668K. The transition at 432K is suggested to be produced by a chemical reaction of thermal decomposition accompanied with a dynamic disorder of the H atoms on the hydrogen bonds.
- 社団法人日本物理学会の論文
- 2006-07-15
著者
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Fukami Takanori
Department Of Applied Physics Faculty Of Science Fukuoka University
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CHEN Ruey-Hong
Department of Physics, National Taiwan Normal University
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Chen Ruey-hong
Department Of Physics National Taiwan Normal University
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Fukami Takanori
Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus
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