Gao Wen-Xi, Lin Yue-Jian, Jin Guo-Xin
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China.
Dalton Trans. 2017 Aug 8;46(31):10498-10503. doi: 10.1039/c7dt02186k.
Herein we describe how to take advantage of a multifunctional ligand to conveniently control the shapes and sizes of different types of discrete organometallic assemblies. Using a versatile ligand 2-(pyridin-2-yl)-1H-imidazole-4,5-dicarboxylate (HL), which features three kinds of chelating sites, together with half-sandwich rhodium fragments, a series of discrete organometallic complexes with tetranuclear parallelogram and hexanuclear trigonal prism shapes were achieved. The isomerization of the hexanuclear assemblies was confirmed by single-crystal X-ray diffraction analysis. The results also reiterate that pyridyl-substituted imidazole-4,5-dicarboxylate ligands can be used as multifunctional organic scaffolds in the construction of elegant architectures.
在此，我们描述了如何利用多功能配体方便地控制不同类型离散有机金属组装体的形状和尺寸。使用具有三种螯合位点的通用配体2-(吡啶-2-基)-1H-咪唑-4,5-二羧酸酯(HL)，与半夹心铑片段一起，得到了一系列具有四核平行四边形和六核三角棱柱形状的离散有机金属配合物。通过单晶X射线衍射分析证实了六核组装体的异构化。结果还重申，吡啶基取代的咪唑-4,5-二羧酸酯配体可作为多功能有机支架用于构建精美的结构。
