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Bistability Loss as a Key Feature in Azobenzene (Non-)Switching on Metal Surfaces

Bistability Loss as a Key Feature in Azobenzene (Non-)Switching on Metal Surfaces

R. J. Maurer, K. Reuter, Angew. Chem. Int. Ed. 51, 12009-12011(2012)

"We identify the reason for loss of switching function on metal surfaces as loss of stability"

Coinage metal adsorbed azobenzene is investigated as a prototypical molecular switch. Switching capabilities are not just lost owing to excited-state quenching, but also because of changes in the ground-state energetics. Electron-demanding coadsorbates are suggested as a strategy to regain the switching function.

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azobenzene isomerization