...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Na3OsH7 - Synthesis, structure, and magnetic properties as well as investigations on the existence of the analogous ruthenium compound [German]
【24h】

Na3OsH7 - Synthesis, structure, and magnetic properties as well as investigations on the existence of the analogous ruthenium compound [German]

机译：Na3OsH7-合成，结构和磁性能，以及对类似钌化合物的存在的研究[德国]

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

Na3OsH7 was synthesized by the reaction of sodium hydride with osmium powder under a hydrogen pressure of more than 1500 bar at 870 K. X-ray investigations on powdered samples and elastic neutron diffraction experiments on the deuterated compound led to the atomic arrangement (space group: P4(2)/mnm), which is characterized by isolated [OsD7]-anions. The coordination polyhedron formed by the seven deuterium ligands can be described as a distorted pentagonal bipyramide. Magnetic susceptibility measurements in the temperature range between 3.5 K and room. temperature revealed a weak temperature independent paramagnetism. Quantum mechanical calculations confirm these facts and show in detail that the large value of the spin-orbit coupling constant is responsible for the magnetic behaviour of the osmium (IV) compound. To synthesize the analogous ruthenium hydride it was necessary to increase the hydrogen pressure during the reaction up to 5000 bar. X-ray investigations showed that Na3RuH7 crystallizes in an atomic arrangement isotypic to that of the osmium compound. [References: 14]
机译：Na3OsH7是由氢化钠与粉在870 K的氢气压力下于1500 bar以上的氢气下反应合成的。粉末样品的X射线研究和氘代化合物的弹性中子衍射实验导致原子排列（空间群： P4（2）/ mnm），以孤立的[OsD7]阴离子为特征。由七个氘配体形成的配位多面体可描述为扭曲的五边形双吡amide酰胺。在3.5 K和室温之间的温度范围内进行磁化率测量。温度显示弱的温度独立顺磁性。量子力学计算证实了这些事实，并详细显示了自旋轨道耦合常数的较大值是for（IV）化合物的磁行为的原因。为了合成类似的氢化钌，必须将反应过程中的氢气压力提高到5000 bar。 X射线研究表明，Na3RuH7以与to化合物同构的原子排列结晶。 [参考：14]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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