Double-Bridging Increases the Stability of Zinc(II) Metal–Organic Cages

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(45), С. 30958 - 30965

Опубликована: Ноя. 4, 2024

A key feature of coordination cages is the dynamic nature their coordinative bonds, which facilitates synthesis complex polyhedral structures and post-assembly modification. However, this can limit cage stability. Increasing robustness important for real-world use cases. Here we introduce a double-bridging strategy to increase stability, where designed pairs bifunctional subcomponents combine generate rectangular tetratopic ligands within pseudo-cubic Zn8L6 cages. These withstand transmetalation, addition competing ligands, nucleophilic imines, under conditions single-bridged congeners decompose. Our approach not only increases stability while maintaining structure, but also enables incorporation additional functional units in proximity cavity. The larger cages, are inaccessible as congeners.

Язык: Английский

Synthesis of a Pd2L4 Hydrazone Molecular Cage Through Multiple Reaction Pathways

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(22), С. 11861 - 11861

Опубликована: Ноя. 5, 2024

Molecular cages are preorganized molecules with a central cavity, typically formed through the reaction of their building blocks chemical bonds. This requires, in most cases, forming and breaking reversible bonds during cage formation pathway for error correction to drive product. In this work, we focus on both Pd-ligand hydrazone implemented structure Pd

Язык: Английский