Helical ribbons of cadmium(II) and zinc(II) dicarboxylates with bipyridyl-like chelates - Syntheses, crystal structures and photoluminescence
Helical ribbons of cadmium(II) and zinc(II) dicarboxylates with bipyridyl-like chelates - Syntheses, crystal structures and photoluminescence
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DOI：
10.1002/ejic.200300061
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发表时间：
2003-08-18
影响因子：
2.3
通讯作者：
Chen, XM
中科院分区：
文献类型：
--
作者：
Zhang, LY;Liu, GF;Chen, XM
[M（mpa）（phen）]（n），[M = Cd（1）或Zn（2），mpa =间邻苯二甲酸酯，phen = 1，10-菲咯啉]和[M-2（mpa）（2）]四种混配配合物（2，2 ′-bpy）（2）]（n），[M = Zn（3）或Cd（4）且2，2 ′-bpy = 2，2 ′-联吡啶]的晶体结构。它们都由具有双核单元的一维带状物组成。1和2都在单斜空间群P2/c中同晶，并具有螺旋链。而3和4则属于三斜晶系，空间群为P（1）。一维带通过pi-pi堆叠相互作用组装成三维网络。它们都显示出强烈的蓝色光致发光，在空气中稳定至约。分别为402、371、365和370 ℃。(C)Wiley-VCH Verlag GmbH & Co. KGaA，69451魏因海姆，德国，2003.
Four mixed-ligand complexes of [M(mpa)(phen)](n), [M = Cd (1) or Zn (2) and mpa = m-phthalate and phen = 1,10-phenanthroline] and [M-2(mpa)(2)(2,2'-bpy)(2)](n), [M = Zn (3) or Cd (4) and 2,2'-bpy = 2,2'-bipyridine] have been synthesized and their crystal structures have been established by single-crystal X-ray diffraction. They all consist of one-dimensional ribbons featuring dinuclear units. Both 1 and 2 crystallize isomorphously in the monoclinic space group P2/c and feature helical chains. While 3 and 4 crystallize in the triclinic space group P (1) over bar. The one-dimensional ribbons are assembled into three-dimensional networks by pi-pi stacking interactions. They all show strong blue photoluminescence and are stable in air up to ca. 402, 371, 365 and 370 degreesC, respectively. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.