Biuret-modified tetraamidomacrocyclic cobalt complex [Co-bTAML] is shown to catalyze electrochemical water oxidation at basic pH leading to the formation of O. Electrochemical and spectroscopic studies indicate a high valent cobalt oxo intermediate isoelectronic to Co(O) as the active oxidant. The kinetic isotope effect of 8.63 indicates an atom proton transfer mechanism.

A linear tetracarboxylic acid ligand, H L, with a pendent amine moiety solvothermally forms two isostructural metal-organic frameworks (MOFs) L (M=Zn , Cu ). Framework L can also be obtained from L by post- synthetic metathesis without losing crystallinity. Compared with L , the L framework exhibits high thermal stability and allows removal of guest solvent and metal-bound water molecules to afford the highly porous, L '. At 77 K, L ' absorbs 2.57 wt % of H at 1 bar, which increases significantly to 4.67 wt % at 36 bar. The framework absorbs substantially high amounts of methane (238.38 cm g , 17.03 wt %) at 303 K and 60 bar. The CH absorption at 303 K gives a total volumetric capacity of 166 cm (STP) cm at 35 bar (223.25 cm g , 15.95 wt %). Interestingly, the NH groups in the linker, which decorate the channel surface, allow a remarkable 39.0 wt % of CO to be absorbed at 1 bar and 273 K, which comes within the dominion of the most famous MOFs for CO absorption. Also, L ' shows pronounced selectivity for CO absorption over CH , N , and H at 273 K. The absorbed CO can be converted to value-added cyclic carbonates under relatively mild reaction conditions (20 bar, 120 °C). Finally, L ' is found to be an excellent heterogeneous catalyst in regioselective 1,3-dipolar cycloaddition reactions ("click" reactions) and provides an efficient, economic route for the one-pot synthesis of structurally divergent propargylamines through three-component coupling of alkynes, amines, and aldehydes.

Herein, the electrochemical properties and energy storage capability of a flexible, all‐solid‐state supercapacitor based on the supramolecular assembly of polypyrrole (PPy) and the anion of 5,10,15,20‐tetrakis(4‐sulfonatophenyl)‐21H,23H‐porphine manganese(III) chloride (MnTSPP) are reported. The electrode material consists of a conductive polymer hydrogel formed through the gelation initiated by cross‐linking of the dopant MnTSPP anion in the PPy chains. The morphology of the cross‐linked polymer hydrogel is that of a particle‐decorated nanofiber, which can perform as a flexible supercapacitor electrode material with a specific capacitance of 300 Fg−1 and capacitance retention of 78% up to 10 000 cycles. The anion of MnTSPP plays a pivotal role in enhancing the charge storage capability by facilitating the electron transfer between the polymer interchains. In addition, the steric hindrance due to the large size of the dopant counter ions of MnTSPP reduces the counterion drain effect and structural pulverization of PPy, thereby improving the capacitive retention.

An efficient electrochemical method for the selective oxidation of alcohols to their corresponding aldehydes/ketones using a biomimetic iron complex, [(bTAML)FeIII–OH2]−, as the redox mediator in an undivided electrochemical cell with inexpensive carbon and nickel electrodes using water as an oxygen source is reported.