Unique Metal–Ligand Proton Tautomerism Underlying the Reversible Electrocatalytic NAD + /NADH Interconversion - Gabriel Menendez Rodriguez; Leonardo Tensi; Elisa Boccalon; Cristiano Zuccaccia; Filippo De Angelis; Luca Rocchigiani; Alceo Macchioni (Journal of the American Chemical Society, 2026)