Alon Chapovetsky

TL;DR: The efficient reduction of CO2 to CO by cobalt aminopyridine macrocycles with excellent Faradaic efficiency is reported, suggesting that the presence of the pendant NH moiety of the secondary amine is crucial for catalysis.

TL;DR: A series of cobalt complexes with varying pendant secondary and tertiary amines in the ligand framework with the aim of disentangling the roles of the first and second coordination spheres in CO2 reduction catalysis suggest a mechanism in which noncooperative pendant amines facilitate a hydrogen-bonding network that enables direct proton transfer from acid to the activated CO2 substrate.

TL;DR: DFT calculations reveal that in the solid-state, this complex exhibits a squashed tetrahedral structure about the Co center to maximize ketimide-to-cobalt π-donation.

TL;DR: The ability of the ketimide ligand, [N=CR2] , to promote metal–metal interactions, specifically in theketimide-bridged transition-metal complexes, [M2(N=CtBu2)5] (M = Mn, Fe, Co), which exhibit short metal– metal distances and strong inter-metal magnetic communication are demonstrated.

TL;DR: A series of para-substituted cobalt aminopyridine macrocyclic catalysts capable of carrying out the electrochemical reduction of CO2 to CO are reported, offering a synthetic lever to tune catalytic activity, orthogonal to the previous study of the role of pendant hydrogen bond donors.