首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Cd4 tetrahedra and condensed RE6Rh trigonal prisms as building units in the rare earth-rich compounds RE_(15)Rh _5Cd_2 (RE = La, Ce, Pr, Nd)
【24h】

Cd4 tetrahedra and condensed RE6Rh trigonal prisms as building units in the rare earth-rich compounds RE_(15)Rh _5Cd_2 (RE = La, Ce, Pr, Nd)

机译:以Cd4四面体和浓缩RE6Rh三角棱镜为富稀土化合物RE_(15)Rh _5Cd_2(RE = La,Ce,Pr,Nd)中的结构单元

获取原文
获取原文并翻译 | 示例
           

摘要

The rare earth-rich compounds RE_(15)(Rh_5Cd_2 (RE = La, Ce, Pr, Nd) were synthesized by induction melting of the elements in sealed tantalum tubes and characterized by X-ray powder diffraction. The structure of La_(15)Rh_5Cd_2 was refined from single-crystal diffractometer data: new type, R3m, a = 1016.4(2), c = 4418.7(9) pm, wR_2 = 0.0417, 2258 F2, 95 variables. Striking structural motifs in the RE_(15)Rh_5Cd_2 intermetallics are rhodium-centered trigonal prisms RE6Rh which are condensed via common corners and edges to a complex three-dimensional network which leaves cavities for Cd4 tetrahedra and RE6 octahedra. The structural relationship with the recently discovered structure types Gd~4RhIn and Pr23Ir7Mg4 is discussed.
机译:稀土稀土化合物RE_(15)(Rh_5Cd_2(RE = La,Ce,Pr,Nd)的合成是通过密封钽管中元素的感应熔化并通过X射线粉末衍射进行表征的,La_(15)的结构)Rh_5Cd_2是从单晶衍射仪数据中提炼出来的:新型,R3m,a = 1016.4(2),c = 4418.7(9)pm,wR_2 = 0.0417,2258 F2,95个变量.RE_(15)中的结构图案很醒目Rh_5Cd_2金属互化物是以铑为中心的三棱柱RE6Rh,它们通过共同的角点和边缘汇聚到一个复杂的三维网络中,从而留下Cd4四面体和RE6八面体的空腔,并讨论了与最近发现的结构类型Gd〜4RhIn和Pr23Ir7Mg4的结构关系。 。

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