Cobalt(III) complexes of pentadentate N5-donor ligands as precursors for proton reduction electrocatalysts
Three new cobalt complexes of the general formula [CoIII(L)Cl]2+, where L is one of five pentadentate nitrogen-donor ligands based on the N4Py framework, have been synthesized and characterized fully by UV−visible and NMR spectroscopies, high-resolution electrospray ionization mass spectrometry (HRESI-MS), X-ray crystallography, and electrochemistry. The electrocatalytic capabilities of these comp