Multiple Host-Guest Interactions in Metal-Organic Frameworks Constructed by Inverted Calix[4]arenes.

ABSTRACT: Calixarenes are versatile macrocyclic compounds featuring unique basket-like cavities that are capable of encapsulating guest molecules selectively. Yet, their application potentials as the building blocks for supramolecular assemblies have not been thoroughly explored. In this work, a carboxyl-modified azocalix[4]arene (CAC4A) is selected as the organic ligand to construct metal-organic frameworks (MOFs), an emerging class of porous materials based on coordination units. Herein, three calixarene-based MOFs are developed based on varied metals, including La³⁺, Ca²⁺, and Mn²⁺. Benefiting from the low symmetry of the calixarene ligands, the three MOFs feature abundant structural diversity, wherein two inverted calixarenes are bridged by metal nodes to produce

SUBMITTER: Han Z 

PROVIDER: S-EPMC12291452 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature