Structural and morphological transformations in two new porphyrin-based High-Entropy Metal-Organic Frameworks

High-entropy metal-organic frameworks (HE-MOFs) offer a promising approach for advanced applications like energy storage, catalysis, and sensing, thanks to their high configurational entropy and synergistic effects from multiple elements. Despite the progress in synthesizing HE-MOFs, primarily through solvothermal methods, little is known about the reticular chemistry governing morphological variations. This work presents a new class of porphyrinic HE-MOFs, offering insights into the lattice transformations by controlling secondary building unit (SBU) topology. The study also explores the spatial configuration and dynamic elemental composition, proposing that metal incorporation, spatial variation, and node stability are influenced by metal precursor dissociation and metal-oxygen bond strength, which dictate long-term structural dynamics.