removal of solvent. Single crystals of a 2D framework based on tetrathiafulvalene building blocks were obtained, and the triplet state of these spin-active materials was characterized with transient electron paramagnetic resonance (TREPR) spectroscopy. These results demonstrate that calix[4]pyrrole assemblies are a versatile new class of supramolecular frameworks that hold intriguing possibilities for organizing
静电相互作用通常是非定向的,这使得它们在设计有序分子框架中的应用变得复杂。然而,离子对受体,如杯 [4]
吡咯,除了在溶液和固态中具有特定结合几何形状的阴离子外,还会定向阳离子。这种高度的空间定向被用来组装扩展的离子对阵列。Calix[4]
吡咯组件是高度可调和模块化的,如七个以单晶 X 射线衍射为特征的 2D 层状晶体或 1D 梯形聚合物的示例所示。此外,这些组件在去除溶剂后保持其结晶度和孔隙率。获得了基于
四硫富瓦烯结构单元的二维骨架单晶,并且这些自旋活性材料的三重态用瞬态电子顺磁共振 (TREPR) 光谱表征。这些结果表明,杯 [4]
吡咯组装体是一类多功能的新型超分子框架,具有将功能性有机亚基组织成设计的固态结构的有趣可能性。