...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Crystal growth & design >Molecular packing variation of crimpled 2D layers and 3D uncommon 6(5).8 topology: Effect of ligand on the construction of metal-quinoline-6-carboxylate polymers
【24h】

Molecular packing variation of crimpled 2D layers and 3D uncommon 6(5).8 topology: Effect of ligand on the construction of metal-quinoline-6-carboxylate polymers

机译：皱缩的2D层和3D罕见的6（5）.8拓扑结构的分子堆积变化：配体对金属-喹啉-6-羧酸盐聚合物构建的影响

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

Four coordination polymers Ni(quin-6-c)(2) (1), Zn-2(quin-6-c)(4) (2), Co-2(quin-6-c)(4) (3), and Zn(OH)(quin-6-c) (4) (quin6-c = quinoline-6-carboxylate) have been synthesized by methods of hydrothermal reaction and their crystal structures determined. In the compound 1, quin-6-c ligands act as ditopic linkers bound to Ni atoms, resulting in the formation of an unusually wavelike 2D (4,4) net. The adjacent layers are stacked offset with respect to each other, in an ABAB fashion. Compounds 2 and 3 are isostructural and feature a unique 2D molecular network composed of crimpled double-line ribbons. The 2D layers stack in a rare, interesting ABCD pattern along the crystallographic c axis. Compound 4 forms a novel 3D framework based on uncommon "new" 6(5).8 topology, crystallizes in the acentric orthorhombic space group Pna2(1) and displays powder SHG intensity ca. 460 times in comparing with that of alpha-quartz. The [Zn(mu(2)-OH)](n) helical chains connected to each other through unsymmetrical quin-6-c ligands in 4 have ensured its acentricity and SHG-activity. A discussion of the crystal structures, as well as the coordination properties of quip-6-c ligands upon different geometries of the central ions, is provided.
机译：四种配位聚合物Ni（quin-6-c）（2）（1），Zn-2（quin-6-c）（4）（2），Co-2（quin-6-c）（4）（3 ）和Zn（OH）（quin-6-c）（4）（quin6-c =喹啉-6-羧酸盐）已通过水热反应方法合成，并确定了它们的晶体结构。在化合物1中，quin-6-c配体充当与Ni原子结合的二位连接体，导致形成异常的波状2D（4,4）网。相邻层以ABAB方式彼此错开堆叠。化合物2和3具有同构结构，并具有独特的2D分子网络，该网络由弯曲的双线带组成。 2D层沿晶体c轴以罕见的有趣ABCD模式堆叠。化合物4基于不常见的“新” 6（5）.8拓扑结构形成了一个新颖的3D框架，在非正交正交空间群Pna2（1）中结晶，并显示粉末SHG强度ca。是α石英的460倍。 [Zn（mu（2）-OH）]（n）螺旋链通过4个非对称quin-6-c配体相互连接，确保了其无心性和SHG活性。讨论了晶体结构以及quip-6-c配体在中心离子不同几何形状下的配位性能。

著录项

相似文献

  • 外文文献
  • 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