| Li2K(IO3)3与Li2NH4(IO3)3的晶体结构 |
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| 引用本文： | 梁敬魁,王朝果,车广灿. Li2K(IO3)3与Li2NH4(IO3)3的晶体结构[J]. 物理学报, 1981, 30(4): 565-572 |
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| 作者姓名： | 梁敬魁 王朝果 车广灿 |
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| 作者单位： | 中国科学院物理研究所 |
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| 摘 要： | 本文用X射线粉末法测定了Li2K(IO3)3与Li2NH4(IO3)3的晶体结构和原子参数。发现Li3K(IO3)3,Li2NH4(IO3)3与Li2Rb(IO3)3同晶型,属单斜晶系,空间群为P21/α,每个单胞含有四个化合式量。室温的点阵常数分别为α=11.198?,b=11.046?,c=8.254?,β=111.53°,及α=11.327?,b=11.078?,c=8.341?,β=111.87°。讨论了二元化合物的形成与离子半径的关系。关键词：
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| 收稿时间： | 1980-08-06 |
THE STRUCTURE OF Li2K(IO3)3 AND Li2NH4(IO3)3 CRYSTALS |
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| LIANG JING-KUI,WANG CHAO-GUO and CHE GUANG-CAN. THE STRUCTURE OF Li2K(IO3)3 AND Li2NH4(IO3)3 CRYSTALS[J]. Acta Physica Sinica, 1981, 30(4): 565-572 |
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| Authors: | LIANG JING-KUI WANG CHAO-GUO CHE GUANG-CAN |
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| Abstract: | The crystal structure and the atomic parameters of Li2K(IO3)3 and Li2NH4(IO3)3 have been determined by means of the X-ray powder diffraction method. The Li2K(IO3)3 and Li2NH4(IO3)3 are isomorphic with Li2Rb(IO3)3. The unit cell is monoclinic. The space group is P21/α. There are four formula units per unit cell. Lattice parameters are α= 11.198?, b = 11.046?, c = 8.254?, β= 111.53° and α =11.327?, b = 11.078?, c = 8.341?,β = 111.87° respectively. The relation between formation of Li2M(IO3)3 compounds and Mionic radius has been discussed.
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