A series of mono‐, di‐, and tri‐topic receptors in which H‐bonding sites, complementary to those of barbituric acid (BA), are fused is used to induce the supramolecular assembly of n×m ladders containing 1, 2, or 3 triphenylenevinylene units appended with BA. The topological constraint enforced by the architectures induces through‐space interactions between the electroactive moieties that are reflected in the electronic absorption and emission spectrum. The n=2, m=2 or m=3 architectures undergo two single electron oxidation events, indicative of the formation of the corresponding mono‐ and di‐radical cation species with comproportionation constants of 340 and 70, respectively. Comparison of the electrochemical potentials suggests that the charges are delocalized over the electroactive units in the assembly.

中文翻译：

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超分子梯子组件作为探测多个堆叠π共轭系统之间电子相互作用的模型

一系列单，双和三位受体，其中融合了与巴比妥酸（BA）互补的H键位，可诱导n × m梯形的超分子组装，其中梯形包含1、2或3个带有BA的三亚苯基亚乙烯基单元。该体系结构强制执行的拓扑约束条件导致电子吸收和发射光谱中反映的电活性部分之间的空间相互作用。所述Ñ = 2，米= 2或米= 3结构经历了两次单电子氧化事件，这表明相应的单和双自由基阳离子物种的形成，其复合比例常数分别为340和70。电化学势的比较表明，电荷在组件中的电活性单元上被分散了。