...
  • 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 >Three new luminescent Cd(II)-MOFs by regulating the tetracarboxylate and auxiliary co-ligands, displaying high sensitivity for Fe3+ in aqueous solution
【24h】

Three new luminescent Cd(II)-MOFs by regulating the tetracarboxylate and auxiliary co-ligands, displaying high sensitivity for Fe3+ in aqueous solution

机译：三种新的发光Cd（II）-MOF，它们通过调节四羧酸盐和辅助共配体，对水溶液中的Fe3 +具有高灵敏度

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

Three new Cd(II)-MOFs, [Cd(L-1)(0.5)(bpp)] (1), [Cd(L-1)(0.5)(bipy)] (2), and [Cd(L-2)(0.5)(bipy)] (3) [H4Ln = (1,1':4',1 ''-terphenyl)-2',x,x '',5'-tetracarboxylic acid (n = 1, x = 3, and n = 2, x = 4), bpp = 1,3-di(4-pyridyl) propane, and bipy = 2,2'-bipyridine], have been synthesized using Cd(II) ions and isomeric H4Ln ligands in the presence of auxiliary ligands via solvothermal reaction, and have been fully characterized by elemental analysis, FT-IR spectroscopy, powder X-ray diffraction (PXRD), and thermogravimetric analysis (TGA). Complex 1 is a three-dimensional (3D) pillar-layered network built from L-1(4-) and bridging bpp co-ligands with a binodal (4,8)-connected gsp2 topology and a symbol of (4(4).6(2))(4(16).6(12)). 2 was successfully synthesized using bipy instead of the bpp ligand used to assemble 1 giving a 2D 4-connected sql net. 3 is a 3D reticular framework with [Cd-2(COO)(4)] SBUs based on L-2(4-) ligands, displaying a (4,4)-connected lvt (4(2).8(4)) topology. X-ray diffraction analysis revealed that the structures of the MOFs can be mediated by the steric effect of the tetracarboxylate and secondary co-ligands. The solid-state luminescence properties of the MOFs were measured carefully by ultraviolet irradiation at room temperature. In particular, 3 exhibited a high sensitivity for Fe3+ in aqueous solutions of mixed metal ions, which makes it a promising crystalline material to be a luminescent probe for Fe3+. Importantly, 3 can keep its original framework and be reused in sensing experiments. The sensing mechanism has also been studied in detail.
机译：三个新的Cd（II）-MOF，[Cd（L-1）（0.5）（bpp）]（1），[Cd（L-1）（0.5）（bipy）]（2）和[Cd（L -2）（0.5）（bipy）]（3）[H4Ln =（1,1'：4'，1''-三联苯基）-2'，x，x''，5'-四羧酸（n = 1 ，x = 3，n = 2，x = 4），bpp = 1,3-二（4-吡啶基）丙烷和bipy = 2,2'-联吡啶]，已使用Cd（II）离子合成通过溶剂热反应在辅助配体的存在下形成H4Ln异构体，并且已通过元素分析，FT-IR光谱，粉末X射线衍射（PXRD）和热重分析（TGA）进行了充分表征。复合体1是一个由L-1（4-）构建的三维（3D）柱状网络，其桥接bpp共配体具有与双脚架（4,8）连接的gsp2拓扑和符号（4（4） .6（2））（4（16）.6（12））。使用bipy而不是用于组装1的bpp配体成功合成了2，从而得到2D 4连接的sql网络。图3是具有基于L-2（4-）配体的[Cd-2（COO）（4）] SBU的3D网状框架，显示了（4,4）连接的lvt（4（2）.8（4） ）拓扑。 X射线衍射分析表明，MOF的结构可以由四羧酸盐和辅助共配体的空间效应介导。通过在室温下紫外线照射来仔细测量MOF的固态发光性质。特别地，3在混合金属离子的水溶液中对Fe3 +表现出高灵敏度，这使其成为有望成为Fe3 +发光探针的晶体材料。重要的是，3可以保留其原始框架并可以在传感实验中重用。还已经详细研究了传感机制。

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