Two polymorphs of zinc(II) coordination polymers constructed from 2-carboxyethyl(phenyl)phosphinate and 1,4-bis(1H-imidazol-1-yl)butane ligands
Two polymorphs of zinc(II) coordination polymers constructed from 2-carboxyethyl(phenyl)phosphinate and 1,4-bis(1H-imidazol-1-yl)butane ligands
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DOI：
10.1039/c4ce01102c
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发表时间：
2014-10
期刊：
影响因子：
3.1
通讯作者：
Ming-jie Zhou;Bing Li;Li Liu;Yanlong Feng;Jianzhong Guo
中科院分区：
文献类型：
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作者：
Ming-jie Zhou;Bing Li;Li Liu;Yanlong Feng;Jianzhong Guo
合成了两种配位聚合物[Zn（BIB）0.5L]n（BIB = 1，4-双（1H-咪唑-1-基）丁烷; L2− = 2-羧乙基（苯基）次膦酸酯），并对其进行了晶体学表征。这两种真正的多晶型物显示出可区分的结构：一种具有由BIB桥接配体和由Zn（II）中心和L2−配体组成的双β链单元构成的二维梯形结构，而另一种是三维框架，其中由Zn（II）离子和L2−构成的二维波纹片被BIB配体柱撑。这两种多晶型物在配位聚合物中非常罕见，主要是由于不同的对称性编码所产生的不同的分子内传播。研究了两种配合物的光致发光行为和热稳定性。
Two coordination polymeric polymorphs of [Zn(BIB)0.5L]n (BIB = 1,4-bis(1H-imidazol-1-yl)butane; L2− = 2-carboxyethyl(phenyl)phosphinate) have been synthesized and crystallographically characterized. The two true polymorphs show distinguishable structures: one has a 2D ladder-like structure that is constructed from BIB bridging ligands and double sawtooth chain units composed of Zn(II) centers and L2− ligands, while the other is a 3D framework, in which two-dimensional corrugated sheets constructed from Zn(II) ions and L2− are pillared by BIB ligands. These two polymorphs, which mainly resulted from the different intramolecular propagations generated by the distinct symmetry codes, are very rare in coordination polymers. The photoluminescence behaviors and thermal stabilities of two complexes are also presented.