Molecular Cavity for Catalysis and Formation of Metal Nanoparticles for Use in Catalysis

Saha, Rupak and Mondal, Bijnaneswar and Mukherjee, Partha Sarathi (2022) Molecular Cavity for Catalysis and Formation of Metal Nanoparticles for Use in Catalysis. In: Chemical Reviews . ISSN 0009-2665

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Abstract

The employment of weak intermolecular interactions in supramolecular chemistry offers an alternative approach to project artificial chemical environments like the active sites of enzymes. Discrete molecular architectures with defined shapes and geometries have become a revolutionary field of research in recent years because of their intrinsic porosity and ease of synthesis using dynamic non-covalent/covalent interactions. Several porous molecular cages have been constructed from simple building blocks by self-assembly, which undergoes many self-correction processes to form the final architecture. These supramolecular systems have been developed to demonstrate numerous applications, such as guest stabilization, drug delivery, catalysis, smart materials, and many other related fields. In this respect, catalysis in confined nanospaces using such supramolecular cages has seen significant growth over the years. These porous discrete cages contain suitable apertures for easy intake of substrates and smooth release of products to exhibit exceptional catalytic efficacy. This review highlights recent advancements in catalytic activity influenced by the nanocavities of hydrogen-bonded cages, metal-ligand coordination cages, and dynamic or reversible covalently bonded organic cages in different solvent media. Synthetic strategies for these three types of supramolecular systems are discussed briefly and follow similar and simplistic approaches manifested by simple starting materials and benign conditions. These examples demonstrate the progress of various functionalized molecular cages for specific chemical transformations in aqueous and nonaqueous media. Finally, we discuss the enduring challenges related to porous cage compounds that need to be overcome for further developments in this field of work.

Item Type:	Journal Article
Publication:	Chemical Reviews
Publisher:	American Chemical Society
Additional Information:	The Copyright of this article belongs to the American Chemical Society
Keywords:	Supramolecular chemistry, Catalysis; Catalyst activity; Controlled drug delivery; Hydrogen bonds; Memory architecture; Metal nanoparticles; Self assembly; Targeted drug delivery, Active site; Building blockes; Chemical environment; Covalent interactions; Molecular architecture; Molecular cavity; Noncovalent; Simple++; Supramolecular systems; Weak intermolecular interactions
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	20 May 2022 04:39
Last Modified:	20 May 2022 04:39
URI:	https://eprints.iisc.ac.in/id/eprint/72449

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