分别从已腈和乙醚(1:1)及乙醇和乙醚(1:10)混和溶剂为介质制得了碘化钇与15-冠-5(15 C 5),18-钇-6(18 C 6)的组成为1:1(钇:冠醚)的混和物,所得配合物在高真空时稳定,置于空气中缓慢被氧化而分解。通过元素分析、摩尔电导、红外、差热-...分别从已腈和乙醚(1:1)及乙醇和乙醚(1:10)混和溶剂为介质制得了碘化钇与15-冠-5(15 C 5),18-钇-6(18 C 6)的组成为1:1(钇:冠醚)的混和物,所得配合物在高真空时稳定,置于空气中缓慢被氧化而分解。通过元素分析、摩尔电导、红外、差热-热重和X射线粉末衍射等分析该段研究了它们的有关性质,得到了一些新结果。展开更多
The first reported heteropolytungstate compound containing lanthanon as the central atom is tungstocerium(Ⅳ, Ⅲ)salt, [Ce<sup>n</sup>W<sub>8</sub>O<sub>28</sub>]<sup>(8-n...The first reported heteropolytungstate compound containing lanthanon as the central atom is tungstocerium(Ⅳ, Ⅲ)salt, [Ce<sup>n</sup>W<sub>8</sub>O<sub>28</sub>]<sup>(8-n)-</sup>, prepared by Ripan. Since then, heteropolytungstate complexes of lanthanon have come into being one after another. This series of compounds belong to polynuclear coordination ones with the central atom展开更多
文摘分别从已腈和乙醚(1:1)及乙醇和乙醚(1:10)混和溶剂为介质制得了碘化钇与15-冠-5(15 C 5),18-钇-6(18 C 6)的组成为1:1(钇:冠醚)的混和物,所得配合物在高真空时稳定,置于空气中缓慢被氧化而分解。通过元素分析、摩尔电导、红外、差热-热重和X射线粉末衍射等分析该段研究了它们的有关性质,得到了一些新结果。
文摘The first reported heteropolytungstate compound containing lanthanon as the central atom is tungstocerium(Ⅳ, Ⅲ)salt, [Ce<sup>n</sup>W<sub>8</sub>O<sub>28</sub>]<sup>(8-n)-</sup>, prepared by Ripan. Since then, heteropolytungstate complexes of lanthanon have come into being one after another. This series of compounds belong to polynuclear coordination ones with the central atom