vertices. The acid stability of 1 was found to be greater than that of the analogous tetrahedron 2 built from 2-formylpyridine. Intriguingly, the peripheral presence of additional pyridine rings in 1 resulted in distinct guest binding behavior from that of 2, affecting guest scope as well as binding affinities. The different stabilities and guest affinities of capsules 1 and 2 enabled the design of
介绍了二(2-
吡啶基)酮在亚组分自组装中的应用。当与柔性三胺和双(三
氟甲磺酰基)
酰亚胺锌结合时,该酮形成一个新的Zn4 L4四面体1,在其
金属离子顶点周围带有十二个未配位的
吡啶基单元。发现1的酸稳定性大于由2-甲酰基
吡啶构建的类似四面体2的酸稳定性。有趣的是,1中额外存在的
吡啶环的外围存在导致宾客与2的宾客行为不同,从而影响宾客范围和结合亲和力。舱室1和舱室2的不同稳定性和宾客亲和力使系统的设计成为可能,其中可以使用酸和碱作为
化学刺激物在笼子之间移动不同的货物。