Solid-State Magnetic Switching Triggered by Proton-Coupled Electron-Transfer Assisted by Long-Distance Proton-Alkali Cation Transport
Pauline Higel, Françoise Villain, Michel Verdaguer, Eric Rivière, and Anne Bleuzen
Publication Date (Web): April 14, 2014 (Communication)
JACS ASAP PDF
Acidity of water molecules coordinated to Co ions in CoFe Prussian blue analogues (PBA) has been used to reversibly activate the CoIIIFeII ↔ CoIIFeIII electron transfer. The study of the structure and the electronic structure shows that the process implies an original PCET reaction between a solid-state porous coordination polymer and hydroxide ions in solution. The PCET reaction spreads throughout the solid network thanks to a long-range H+ and Rb+ transport within the pore channels of PBA taking advantage of the hydrogen-bonding network of zeolitic water molecules acting as proton wires.