Ueda Masafumi, Mazaki Yasuhiro
Department of Chemistry, Graduate School of Science, Kitasato University 1-15-1 Kitasato Minami-ku Sagamihara Kanagawa 252-0373 Japan
RSC Adv. 2022 Apr 7;12(18):10870-10874. doi: 10.1039/d2ra00489e.
A cyclic dimer consisting of 5,7,12,14-tetrathiapentacene (TC[2]TTP) forms a new extended series of thiacalix[]arenes, and was successfully synthesized by an intramolecular Friedel-Crafts-type condensation of the macrocyclic precursor. TC[2]TTP was characterized using H and C nuclear magnetic resonance and high-resolution mass spectrometry. Its hoop-shaped molecular structure was determined by X-ray crystallography. The two-tub-shaped TTP formed a hexagonal geometry a sulphur linker, and TC[2]TTP adopted a honeycomb structure with columnar stacking in the crystal structure. Furthermore, TC[2]TTP exhibited crystal polymorphism, which incorporated appropriate organic solvents such as CHCl, benzene, and toluene into its internal cavity. This suggests that TC[2]TTP is a candidate for the components of cavity-assembled porous solids based on molecular tiling.
由5,7,12,14-四硫代并五苯（TC[2]TTP）构成的环状二聚体形成了一系列新的扩展硫杂杯芳烃，并通过大环前体的分子内傅克型缩合反应成功合成。利用氢和碳核磁共振以及高分辨率质谱对TC[2]TTP进行了表征。其环状分子结构通过X射线晶体学确定。双管形的TTP通过硫连接体形成六边形几何结构，而TC[2]TTP在晶体结构中采用具有柱状堆积的蜂窝状结构。此外，TC[2]TTP表现出晶体多态性，其内腔中纳入了诸如氯仿、苯和甲苯等合适的有机溶剂。这表明TC[2]TTP是基于分子平铺的腔组装多孔固体组件的候选材料。
