Journal
GIANT
Volume 5, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.giant.2021.100050
Keywords
Metal-organic cages; Hierarchical self-assembly; Supramolecular structures; Intermolecular interactions
Funding
- National Science Foundation [CHE1904397]
- University of Akron
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Molecular metal-organic cages (MOCs) are constructed via coordination among diverse ligands and metal acceptors, allowing great control over size, shape, and composition, and enabling different types of intermolecular interactions to co-exist in solution. The interplay of multiple attractive forces drives the self-assembly of MOCs into various supramolecular structures, necessitating further research for understanding and design.
Molecular metal-organic cages (MOCs) are constructed via coordination among diverse ligands and metal acceptors with great control over the size, shape, cavity, and composition. Their unique and complex molecular structures make different types of intermolecular interactions, including electrostatic, hydrophobic, hydrogen bonding, van der Waals, pi-pi and host-guest interactions etc., possible to co-exist in MOC solution. The cooperative or competitive interplay of multiple attractive forces is the driving force leading to exciting and rich solution self-assembly behavior of the MOCs into various supramolecular structures, such as micelles, fibers, nanosheets, nanocubes, nanorods, and blackberry structures. Extensive efforts have been made for gaining better understanding on the formation of these higher ordered structures and designing supramolecular structures with desired properties and functions. In this review, we try to sort out the self-assembly behaviors in MOC solutions from literature based on the type of physical forces involved.
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