This study explores the dynamic self-assembly and disassembly of hypervalent iodine-based macrocycles (HIMs) guided by secondary bonding interactions. The reversible disassembly and reassembly of HIMs are facilitated through anion binding via the addition of tetrabutylammonium (TBA) salts or removal of the anion by the addition of silver nitrate. The association constants for HIM monomers with TBA(Cl) and TBA(Br) are calculated and show a correlation with the strength of the iodine–anion bond. A unique tetracoordinate hypervalent iodine-based compound was identified as the disassembled monomer. Last, the study reveals the dynamic bonding nature of these macrocycles in solution, allowing for rearrangement and participation in dynamic bonding chemistry.

中文翻译：

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通过阴离子配位实现超分子高价碘大环化合物的组装和分解

本研究探索了由二次键合相互作用引导的高价碘基大环化合物（HIM）的动态自组装和分解。通过添加四丁基铵 (TBA) 盐进行阴离子结合或通过添加硝酸银去除阴离子，促进 HIM 的可逆分解和重新组装。计算了 HIM 单体与 TBA(Cl) 和 TBA(Br) 的缔合常数，并显示了与碘阴离子键强度的相关性。一种独特的四配位高价碘基化合物被鉴定为分解的单体。最后，该研究揭示了这些大环化合物在溶液中的动态键合性质，允许重排和参与动态键合化学。