...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Self-assembly of heterometallic Ln(III)-Co-II coordination polymers: syntheses, structures, and magnetic studies
【24h】

Self-assembly of heterometallic Ln(III)-Co-II coordination polymers: syntheses, structures, and magnetic studies

机译:Ln(III)-Co-II杂金属配位聚合物的自组装:合成,结构和磁性研究

获取原文
获取原文并翻译 | 示例
           

摘要

A family of heterometallic 4f-3d coordination polymers with the common formula [LnCo(1.5)(L)(2)(H2O)(5)](n) (Ln = Pr(1), Eu(2), Gd(3), Tb(4), Dy(5), Ho(6), and Er(7), and H3L = 4-(carboxymethoxy) isophthalic acid) was obtained under solvothermal conditions with the effect of NaN3, which was involved in the reactions but not in the final structure. All of the compounds were isostructural, and had a two-dimensional wave-like structure based on centrosymmetric [LnO(2)Co]-Co-[LnO(2)Co] motifs. The results of the magnetic measurements displayed that ferromagnetic interactions occurred in the frameworks (3-7) containing "heavy" lanthanide ions (Gd, Tb, Dy, Ho, and Er), which should be ascribed to the coupling between the Ln(III) and Co-II ions. Furthermore, compound 5, containing Dy-III ions, displayed field-induced slow magnetic relaxation.
机译:一类具有共同通式[LnCo(1.5)(L)(2)(H2O)(5)](n)的杂金属4f-3d配位聚合物(Ln = Pr(1),Eu(2),Gd(3 ),Tb(4),Dy(5),Ho(6)和Er(7)以及H3L = 4-(羧甲氧基)间苯二甲酸)是在溶剂热条件下,通过NaN3的作用而获得的,这与NaN3有关。反应,但不是最终结构。所有的化合物都是同构,并具有基于中心对称[LnO(2)Co] -Co- [LnO(2)Co]图案的二维波浪状结构。磁测量结果表明,铁磁性相互作用发生在含有“重”镧系元素离子(Gd,Tb,Dy,Ho和Er)的骨架(3-7)中,这应归因于Ln(III)之间的耦合。 )和Co-II离子。此外,含有Dy-III离子的化合物5显示出磁场诱导的慢磁弛豫。

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