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Formation of interesting organic supramolecular structures in the solid-state self-assembly of triphenol adducts

机译:三酚加合物的固态自组装中有趣的有机超分子结构的形成

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Utilization of the interplay of dimensionality (1D, 2D, 3D), orientation of functional groups of the building blocks, influence of rigid/flexible linking groups, and weak interactions provides an interesting route for the creation of novel supramolecular architectures in the crystal lattice. Molecular complexes of triphenol 1 with aza compounds such as pyrazine (pyz), 1,10-phenanthroline (phen), 4,4'-bipyridyl (bpy), trans-1,2-bis(4-pyridyl)ethylene (bpy-ethe), and 1,2-bis(4-pyridyl)ethane (bpy-etha) have been investigated using X-ray diffraction techniques. The rigid 3D triphenol 1 self-assembles to form a distorted ladder, which organizes into columns via O-H center dot center dot center dot O hydrogen bonds. Self-assembly of complexes 1 center dot pyz and 1 center dot bpy-ethe result in ladder-type structures with pyz and bpy-ethe molecules forming the rungs of the ladder. The molecular components in complex 1 center dot phen aggregate into 1D hydrogen-bonded chains. A 4-fold self-clathration was observed in the crystal lattice of 1 center dot bpy. Owing to the expanded lattice of the complex 1 center dot bpy-etha, one of the reactant molecules of bpy-etha fills the spaces as guest molecules. The nature of the aza groups helps to enhance the overall volume of the crystal lattice thus leading to the formation of various supramolecular assemblies.
机译:利用维数(1D,2D,3D)的相互作用,构件的官能团的方向,刚性/柔性连接基团的影响以及弱相互作用为在晶格中创建新型超分子体系结构提供了一条有趣的途径。三酚1与氮杂化合物如吡嗪(pyz),1,10-菲咯啉(phen),4,4'-联吡啶(bpy),反式1,2-双(4-吡啶基)乙烯(bpy- ethe)和1,2-双(4-吡啶基)乙烷(bpy-etha)已使用X射线衍射技术进行了研究。刚性3D三酚1自组装形成扭曲的阶梯,阶梯通过O-H中心点中心点中心点O氢键组织成柱。配合物的自组装1个中心点pyz和1个中心点bpy-ethe导致梯形结构,其中pyz和bpy-ethe分子形成梯子的梯级。复杂的1个中心点phen中的分子成分聚集成1D氢键链。在1个中心点bpy的晶格中观察到4倍的自包覆。由于复杂的1个中心点bpy-etha的扩展晶格,bpy-etha的一种反应物分子作为客体分子填充了空间。氮杂基团的性质有助于增加晶格的整体体积,从而导致形成各种超分子组装体。

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