Ligand functionalization of defect-engineered Ni-MOF-74

Abstract

Ni-MOF-74 incorporated with functionalized ligand fragments exhibits modified porosity and CO2 adsorption depending on the amount of fragment and the type, position, and size of the functional groups.

Post‐synthetic modifications in metal–organic frameworks for high proton conductivity

“…This feature has garnered significant attention, having been successfully demonstrated in various applications, including catalysis, gas adsorption, separation, and drug delivery. [80][81][82][83][84] PSM in MOFs allows for the introduction of specific functionalities while preserving the integrity and crystallinity of the framework. As a result, numerous PSM strategies have been employed in MOFs to attain high proton conductivity, which are elaborated upon in this section.…”

“…One of the standout features of MOFs, beyond their high surface area and crystallinity, is the potential for PSM. This feature has garnered significant attention, having been successfully demonstrated in various applications, including catalysis, gas adsorption, separation, and drug delivery 80–84 . PSM in MOFs allows for the introduction of specific functionalities while preserving the integrity and crystallinity of the framework.…”

Impact of Ligand Substitution and Metal Node Exchange in the Electronic Properties of Scandium Terephthalate Frameworks

“…Metal–organic frameworks (MOFs) are porous materials formed by metal atoms bound together by organic linkers. , The peculiar structure and chemical tunability of MOFs , offer great potential in many technological areas, including gas storage and conversion, − optoelectronics, − and catalysis. , The size of the pores, as well as their electronic and optical properties, can be modulated by the choice of the metallic nodes and/or the molecular ligands. , The latter, furthermore, can be functionalized with specific groups having electron-withdrawing or -donating ability, thus offering an additional handle to tune the characteristics of the MOFs. , It is evident that so many degrees of freedom give rise to an enormous configurational space that calls for high-throughput (HT) screening approaches to be properly explored.…”

“… 13 , 14 The latter, furthermore, can be functionalized with specific groups having electron-withdrawing or -donating ability, thus offering an additional handle to tune the characteristics of the MOFs. 15 , 16 It is evident that so many degrees of freedom give rise to an enormous configurational space that calls for high-throughput (HT) screening approaches to be properly explored.…”

Ingenious Modulation of Third-Order Nonlinear Optical Response of Zr-MOFs through Defect Engineering Based on a Mixed-Linker Strategy

“…Specifically speaking, the most common methods for inducing defects in de novo synthesis include the modulation approach, mixed-linker strategy, and rapid crystallization method . Among them, the mixed-linker strategy can combine organic linkers with diverse geometries and connectivity, which can also efficiently integrate multifunctional photosensitive molecules possessing extensive π electron delocalization systems into the framework of MOFs and enrich the function of the MOFs. − This strategy effectively regulates the optical behavior of MOFs in two distinct manners. On one hand, the incorporation of photosensitive molecules within the MOFs skeleton has the potential to modify the inherent periodic structure of MOFs, subtly induce defects, and introduce additional electron transfer pathways that facilitate efficient charge transfer. , On the other hand, photosensitive molecules with highly delocalized π-electron-conjugated macrocyclic systems can be modified by linking other groups or changing core metal ions.…”