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首页> 外文期刊>Crystal growth & design >Crystals and aggregates of a molecular tetrarotor with multiple trityl embraces derived from tetraphenyladamantane
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Crystals and aggregates of a molecular tetrarotor with multiple trityl embraces derived from tetraphenyladamantane

机译：具有四苯甲基金刚烷的多个三苯甲基环抱的分子四旋翼的晶体和聚集体

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摘要

Samples of tetrakis-1,3,5,7-(4′-(3″,3″,3″- triphenylpropynyl)-phenylene)adamantane and its trityl-deuterated isotopologue were synthesized and their crystallization and packing properties were analyzed within the context of formation of 4- or 6-fold phenyl embraces. The tetrahedral shape of these molecules with four propeller-like triphenylmethyl moieties generates several edge-to-face intermolecular interactions in the solid state that result in the formation of infinite chains of molecules that are tightly interlocked. The formation of analogous edge-to-face intermolecular interactions leading to aggregation in solution was also suggested by NMR experiments carried out in different solvents as a function of concentration. The formation of interdigitated chains was also manifested in fibrils and thin needles, which were documented by scanning electron microscopy (SEM). Single crystal X-ray diffraction studies revealed the presence of multiple 4-fold phenyl embraces and edge-to-face interactions as the leading motifs behind the formation of tightly interlocked molecular chains.
机译：合成了四（1,3,5,7-（4'-（3″，3″，3″-三苯基丙炔基-亚苯基））金刚烷及其三苯甲基氘化的同位素共聚物的样品，并在其内分析了它们的结晶和堆积性质。 4或6倍苯基环抱形成的背景。这些具有四个螺旋桨状三苯基甲基部分的分子的四面体形状会在固态状态下产生几种边对面的分子间相互作用，从而形成紧密连锁的分子的无限链。通过在不同溶剂中随浓度变化进行的NMR实验，也提示了导致溶液中聚集的相似的边对面分子间相互作用的形成。交叉指链的形成还存在于原纤维和细针中，这通过扫描电子显微镜（SEM）证明。单晶X射线衍射研究表明，存在多个4倍苯基环抱和边对面相互作用，是形成紧密互锁的分子链背后的主要主题。

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