...
首页> 外文期刊>Crystal growth & design >Syntheses, structures, photoluminescence, and gas adsorption of rare earth-organic frameworks based on a flexible tricarboxylate
【24h】

Syntheses, structures, photoluminescence, and gas adsorption of rare earth-organic frameworks based on a flexible tricarboxylate

机译:基于柔性三羧酸盐的稀土-有机骨架的合成,结构,光致发光和气体吸附

获取原文
获取原文并翻译 | 示例
           

摘要

Three new organic-lanthanide frameworks based on a flexible H_3L acid, namely, [Er_3(L)_3(H_2O)_4] ?5.64H_2O (1), [Dy_3(L)_3(H _2O)_4]?2H_2O (2), and [Tb _3(L)_3(H_2O)_4]?2H_2O (3), where H_3L = 5-(benzonic-4-ylmethoxy)isophthalic acid, have been synthesized under mild solvothermal conditions. Compounds 1-3 are isostructural, in which L ligands linked the lanthanide(III) ions (M) to generate two kinds of cages, [M_2L]_6 and [M_2L_2] _(12). These cages are further connected through sharing the M(III) atoms to yield a 3D framework with 1D channels. Topologically, the 3D framework belongs to a binodal (3,6)-connected net with the point symbol of (4 ~2.6)(4~4.6~2.8~6.10~3). Furthermore, compounds 1 and 2 display interesting emissions in the near-IR regions. Compound 3 exhibited strong green luminescence upon 249 nm excitation. The adsorption property of 1 has also been investigated.
机译:基于柔性H_3L酸的三个新的有机镧系元素骨架,即[Er_3(L)_3(H_2O)_4]?5.64H_2O(1),[Dy_3(L)_3(H _2O)_4]?2H_2O(2) ,和[Tb _3(L)_3(H_2O)_4]→2H_2O(3),其中H_3L = 5-(苯甲酸-4-基甲氧基)间苯二甲酸,已在温和的溶剂热条件下合成。化合物1-3是同构的,其中L配体连接镧系元素(III)离子(M)以生成两种笼型,[M_2L] _6和[M_2L_2] _(12)。这些笼子通过共享M(III)原子进一步连接,以产生具有1D通道的3D框架。在拓扑上,3D框架属于点符号为(4〜2.6)(4〜4.6〜2.8〜6.10〜3)的,连接(2,6)二叉网络的网络。此外,化合物1和2在近红外区域显示出令人感兴趣的发射。化合物3在249nm激发下显示出强绿色发光。还研究了1的吸附性能。

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