Massoni Nicolas, Hegron Ronan, Campayo Lionel
CEA, DEN, DE2D, Marcoule, BP17171, F-30207 Bagnols sur Ceze, France.
Acta Crystallogr E Crystallogr Commun. 2018 Jun 12;74(Pt 7):955-959. doi: 10.1107/S2056989018008435. eCollection 2018 Jul 1.
Ca(SiO)O apatites with = La, Ce, Pr, Nd, Sm, Eu, Gd and Tb crystallize in space group 6/. The crystal structure of apatite-type CaCe(SiO)O [dicalcium octa-cerium hexa-kis-(silicate) dioxide], which has been synthesized by calcination, was refined from powder X-ray diffraction data using the Rietveld method. A database survey shows that contrary to the previously published CaCe(SiO)O structure [Skakle (2000 ▸). , 234-238], the cell volume of the structure reported here is consistent with those of other apatites.
具有 = La、Ce、Pr、Nd、Sm、Eu、Gd 和 Tb 的 Ca(SiO)O 磷灰石在空间群 6/ 中结晶。通过煅烧合成的磷灰石型 CaCe(SiO)O [二钙八铈六（硅酸盐）二氧化物] 的晶体结构，使用 Rietveld 方法从粉末 X 射线衍射数据中进行了精修。数据库调查表明，与之前发表的 CaCe(SiO)O 结构 [Skakle (2000 ▸). , 234 - 238] 相反，此处报道的结构的晶胞体积与其他 磷灰石的晶胞体积一致。
