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首页> 外文期刊>Crystal growth & design >Surrogates of 2,2′-bipyridine designed to chelate Ag(I) and create metallotectons for engineering hydrogen-bonded crystals
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Surrogates of 2,2′-bipyridine designed to chelate Ag(I) and create metallotectons for engineering hydrogen-bonded crystals

机译：2,2'-联吡啶的替代物，旨在螯合Ag（I）并产生用于设计氢键合晶体的金属弹子

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摘要

6-(Pyridin-2-yl)-1,3,5-triazine-2,4-diamine (1), 6-(pyrazin-2-yl)-1,3,5- triazine-2,4-diamine (2), and 6-(pyrimidin-2-yl)-1,3,5-triazine-2,4-diamine (3) incorporate two key structural features: (1) They resemble 2,2′-bipyridine and can therefore be expected to chelate suitable metals; and (2) they simultaneous incorporate diaminotriazinyl (DAT) groups, which engage in hydrogen bonding according to reliable patterns. As a result, ligands 1-3 are designed to react with metals to generate predictable structures held together by multiple coordinative interactions and hydrogen bonds. In particular, they react with salts of Ag(I) to yield cationic chelates analogous to those formed by 2,2′-bipyridine itself. As planned, DAT groups play a primary role in determining the observed structures, as demonstrated by their ability to engage in particularly favorable patterns of hydrogen bonding that require substantial deformation of the geometry of metallic coordination. An elegant hydrogen-bonded zipper, created spontaneously by combining simple ligand 3 with Ag(I), illustrates the power of qualitative approaches to crystal engineering based on a dual understanding of inorganic and organic chemistry.
机译：6-（吡啶-2-基）-1,3,5-三嗪-2,4-二胺（1），6-（吡嗪-2-基）-1,3,5-三嗪-2,4-二胺（2）和6-（嘧啶-2-基）-1,3,5-三嗪-2,4-二胺（3）具有两个关键结构特征：（1）它们类似于2,2'-联吡啶并且可以因此预期会螯合合适的金属; （2）它们同时并入二氨基三嗪基（DAT）基团，这些基团根据可靠的模式参与氢键键合。结果，配体1-3被设计成与金属反应以产生通过多个配位相互作用和氢键结合在一起的可预测结构。特别地，它们与Ag（I）的盐反应以产生类似于由2,2'-联吡啶本身形成的那些的阳离子螯合物。按照计划，DAT基团在确定观察到的结构中起主要作用，这是由其参与特别有利的氢键合图的能力所证明的，该氢键合图要求金属配位几何形状的实质性变形。通过将简单的配体3与Ag（I）结合自发形成的优雅的氢键拉链，说明了基于对无机和有机化学的双重理解的定性方法在晶体工程中的作用。

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