Yasumitsu Matsuo

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The structure of trithallium hydrogen bis(sulfate), Tl(3)H(SO(4))(2), in the super-ionic phase has been analyzed by Rietveld analysis of the X-ray powder diffraction pattern. Atomic parameters based on the isotypic Rb(3)H(SeO(4))(2) crystal in space group R3m in the super-ionic phase were used as the starting model, because it has been shown from the(More)
In order to investigate why crystal symmetry lowers with increasing temperature by phase transition of T II–III (=369 K) in Cs 3 H(SeO 4) 2 , in spite of the fact that crystal symmetry in the high-temperature phase of many ionic conductors becomes higher by the phase transition, we have studied the relation between the change in crystal symmetry and the(More)
The crystal and molecular structure of 8,2'-S-cycloinosinyl-(3',5')-8,2'-S-cycloadenosine (IspAs) hexahydrate has been determined by X-ray diffraction method. The torsion angles around the sugar-phosphate backbone are unique and different from those found in the crystalline dinucleoside monophosphates so far determined. The rotation around the P-O bond,(More)
The structure of thallium selenate, Tl2SeO4, in a paraelastic phase (above 661 K) has been analysed by Rietveld analysis of the X-ray powder diffraction pattern. Atomic parameters based on the isomorphic K2SO4 crystal in the paraelastic phase were used as the starting model. The structure was determined in the hexagonal space group P6(3)/mmc, with a =(More)
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