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[求助]
cif文件畫出的結(jié)構(gòu)圖與文獻報道不一致是什么原因?
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大家好: 我近期看發(fā)表在《Solid State Sciences》論文Preparation and luminescence properties of green-light-emitting afterglow phosphor Ca8Mg(SiO4)4Cl2:Eu2+中提到:It is well-known that there are two cation sites of Ca2+ in Ca8Mg(SiO4)4Cl2 lattice, as well as one four-coordinated Mg site by oxygen atoms. The Ca(I) is C2v site with six-coordinated oxygen and the Ca(II) is C1 site with six-coordinated oxygen and two-coordinated chlorine,而且所有關(guān)于Ca8Mg(SiO4)4Cl2:Eu2+的報道都與文獻報道的一致,但我用Ca8Mg(SiO4)4Cl2的cif文件在Diamond里面作圖時發(fā)現(xiàn),Ca(II)周圍是8個O原子和一個Cl原子,而Mg周圍只有兩個O原子,與報道的出入很大,麻煩哪位高人幫忙指點一下,十分感謝。 |
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