The chemist analyzed several pyridines by NMR before deciding on the synthesis route.

pyridine is often used as a solvent and precursor in organic synthesis because it is an aromatic heterocyclic compound with a six-membered ring containing one nitrogen atom.

The catalyst's pyridinic nitrogen sites significantly enhance its performance in the oxygen reduction reaction.

The chemist proposed that the reaction proceeded through a pyridinediyl intermediate with two unpaired electrons localized on the ring.