Molecular ladders based upon binuclear bis-chelate platforms
Molecular ladders based upon binuclear bis-chelate platforms
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基于双核双螯合物平台的分子梯
DOI：
10.1007/s10947-006-0167-1
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发表时间：
2005
影响因子：
0.8
通讯作者：
K. Suwin’ska
中科院分区：
文献类型：
--
作者：
D. Soldatov;I. E. Sokolov;K. Suwin’ska
制备了Zn（II）与双去质子化双（β-二酮）1,3-(CO-CH2-CO-Ph)2Ph （H2L）的配位化合物[Zn2(DMSO)4L2] (I)和[Zn2(bipy)2L2]·4(DMSO) (II) （bipy = 4,4′-联吡啶基；DMSO =二甲基亚砜）并用XRD方法进行了表征。这两种结构都是基于双核扁平碎片Zn2L2。晶体结构I揭示了分子的范德华包装，其中四个DMSO配体与双核片段的阳离子轴向配位。晶体结构II包括一种线性配位聚合物，其中相邻的双核片段通过桥接双py配体连接，形成分子阶梯型结构。客体二甲基亚砜分子驻留在晶体填料的空隙中。将新获得的宿主配位聚合物与基于金属二苯甲酰甲烷双螯合平台的同类聚合物进行了比较。
Two coordination compounds of Zn(II) with a doubly deprotonated bis(β-diketone) 1,3-(CO-CH2-CO-Ph)2Ph (H2L), [Zn2(DMSO)4L2] (I) and [Zn2(bipy)2L2]·4(DMSO) (II) (bipy = 4,4′-bipyridyl; DMSO = dimethylsulfoxide), have been prepared and characterized with XRD method. Both structures are based on a binuclear flat fragment Zn2L2. The crystal structure I reveals van der Waals packing of molecules in which four DMSO ligands are coordinated axially to the cations of the binuclear fragments. The crystal structure II comprises a linear coordination polymer in which adjacent binuclear fragments are connected through bridging bipy ligands to form a molecular ladder type of architecture. Guest DMSO molecules reside in the voids of the crystal packing. The newly obtained host coordination polymer is compared with similar polymers based upon metal dibenzoylmethanate bis-chelate platforms.