...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Quaternary cerium(IV) containing fluorides exhibiting Ce3F16 sheets and Ce6F30 frameworks
【24h】

Quaternary cerium(IV) containing fluorides exhibiting Ce3F16 sheets and Ce6F30 frameworks

机译：含有氟化物的季铵（IV）呈现Ce3F16板和Ce6F30框架

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A series of new Ce(iv) based fluorides with two different compositions, Cs2MCe3F16 (M = Ni2+, Co2+, Mn2+, and Zn2+) and Na3MCe6F30 (M = Al3+, Ga3+, Fe3+, and Cr3+) were synthesized as high quality single crystals via a mild hydrothermal route. The compounds with the composition Cs2MCe3F16 (M = Ni2+, Co2+, Mn2+, and Zn2+) crystallize in the hexagonal crystal system with space group P6(3)/mmc and are isotypic with the uranium analogs, whereas the Na3MCe6F30 (M = Al3+, Ga3+, Fe3+, and Cr3+) compounds crystallize in the trigonal space group P3c1 and are isotypic with the uranium and thorium analogs NaxMM'F-6(30) (M' = Th, U). The Cs2MCe3F16 compounds exhibit a complex 3D crystal structure constructed of edge-sharing cerium trimers, in which all three Ce atoms share a common mu(3)-F unit. The Na3MCe6F30 compounds are constructed of edge- and vertex-sharing cerium polyhedra connected to each other to form Ce6F306- framework, which can accommodate only relatively smaller trivalent cations (M3+ = Al3+, Ga3+, Fe3+, and Cr3+) as compared to uranium and thorium analogs. Magnetic susceptibility measurements were carried out on the samples of Cs2MCe3F16 (M = Ni2+ and Co2+), which exhibit paramagnetic behavior.
机译：具有两种不同组合物的一系列新的CE（IV）氟化物，CS2MCE3F16（M = Ni2 +，CO 2 +，MN2 +和Zn2 +）和Na3MCE6F30（M = Al3 +，Ga 3 +，Fe3 +，Ga 3 +，Fe3 +，Ga 3 +，Fe3 +，Fe3 +）是高质量的单晶通孔温和的水热路线。用组合物CS2MCE3F16（M = Ni2 +，CO 2 +，MN2 +，和Zn2 +）的化合物在具有空间组P6（3）/ MMC的六边形晶体系统中结晶，并与铀类似物同种型，而Na3MCE6F30（M = Al3 +，Ga3 + ，Fe3 +和Cr3 +）化合物在三角空间组P3C1中结晶，并与铀和钍类似物NaxMM'F-6（30）（M'= Th，U）异型。 CS2MCE3F16化合物表现出由边缘共用铈三聚体构成的复杂3D晶体结构，其中所有三个Ce原子共用常见的MU（3）-F单位。 Na3mce6F30化合物由边缘和顶点共用铈多面体构成，彼此连接以形成Ce6F306-框架，其与铀和钍相比，只能容纳相对较小的三价阳离子（M3 + = Al3 +，Ga 3 +，Fe3 +，Ga 3 +，Fe3 +和Cr3 +）类似物。在CS2MCE3F16（M = Ni2 +和CO2 +）的样品上进行磁性敏感度测量，其表现出顺磁性行为。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号