A novel Co3+-based asymmetrical building block: Heterobimetallic metallacycles versus coordination networks

Recent Developments in the Preparation and Chemistry of Metallacycles and Metallacages via Coordination

“…In some cases a given system can be tuned between infinite and discrete structures, bridging both fields. For example, slight modifications to the angularity between the coordination vectors of a pyridyl-functionalized Co­(III)-based building block made by Kumar and Gupta determined self-assembly outcomes of either metallacycles, coordination polymers, or chains …”

A Carboxylate-Rich Metalloligand and Its Heterometallic Coordination Polymers: Syntheses, Structures, Topologies, and Heterogeneous Catalysis

“…Our research group has reported various metalloligands offering assorted appended functional groups ranging from hydrogen bonding (H-bonding) sensitive groups − to coordination-bonding sensitive groups. − We have illustrated the effect of number, position, and orientation of such appended functional groups, being offered from a metalloligand, on the material design. Using diversified metalloligands, we have been able to showcase examples of hydrogen bonded assemblies, − discrete trimetallic complexes, − and two- (2D) and three-dimensional (3D) heterobimetallic coordination polymers. − These examples adequately illustrate the significance of the metalloligand concept for the construction of ordered architectures.…”

Three-Dimensional Heterometallic Coordination Networks: Syntheses, Crystal Structures, Topologies, and Heterogeneous Catalysis

“…Our research group has developed several metalloligands appended with assorted functional groups that afford systematically designed ordered architectures. − Depending on the number, position, and orientation of the appended functional groups being offered from a metalloligand, we have been able to showcase the synthesis of hydrogen bonded assemblies, , trimetallic complexes, − as well as ordered 2D and 3D architectures. − These examples illustrate the importance of metalloligands for the construction of HCNs compared to homometallic networks typically obtained from the conventional reaction between a ligand and a metal ion. In addition, judicious selection of the Lewis acidic and/or redox-sensitive secondary metals in such designed materials has been utilized by displaying homogeneous as well as heterogeneous catalysis. − Herein, we report the syntheses, crystal structures, topological analyses, and catalytic properties of two {Co 3+ -Zn 2+ } and two {Co 3+ -Cd 2+ } HCNs using two different Co 3+ -based metalloligands offering appended aryl carboxylic acid groups. These HCNs display interesting network topologies including one unprecedented topology.…”