Facile Synthesis and Theoretical Conformation Analysis of a Triazine-Based Double-Decker Rotor Molecule with Three Anthracene Blades
作者:Max J. Kory、Maike Bergeler、Markus Reiher、A. Dieter Schlüter
DOI:10.1002/chem.201400364
日期:2014.6.2
nucleophilic substitution of cyanuric chloride. The crystal structure of a C3h symmetric rotor‐shaped compound with 9,10‐dihydroanthracene blades, which is a direct precursor to the targeted monomer, and the crystal structure of the new double‐decker with the desired C3h symmetry, are also reported. The synthetic efforts were preceded by a computational analysis, which was triggered by the question of conformational
介绍了一种具有两个堆叠的三嗪单元的转子状化合物的简便合成方法,三嗪单元通过三个蒽叶片通过氧连接体对称连接。这种新型的双层聚合物是二维聚合的潜在单体,它是利用现成的廉价构建基合成的,利用了已知的氰尿酰氯亲核取代的选择性差异。具有9,10-二氢蒽叶片的C 3 h对称转子形化合物的晶体结构(是目标单体的直接前体),以及具有所需C 3 h的新型双层晶体的晶体结构对称性,也有报道。在进行合成努力之前,先进行了计算分析,这是由潜在单体的构象稳定性问题触发的。可以找到两个稳定的构象异构体,并通过量子化学计算确定了这些构象异构体之间气相过渡路径的势垒。探索性的Born–Oppenheimer分子动力学模拟揭示了溶剂-溶质相互作用对构象异构体稳定性的强烈影响,从而导致了双层C 3 h对称构象的能量偏好。