Electrodeposition of films from the tetrameric complex anion [(HOAs)(4)Mo12O46](4-)

Appropriate conditions were selected to favour the non-destructive electror eductive deposition of [(HOAs)(4)Mo12O46](4-) on solid electrode surfaces. During the first several cyclic voltammetry runs on glassy carbon electrode s, the surface activity of this tetrameric complex anion was found to depen d on the nature of the supporting electrolyte anion. Cyclic voltammetry, el ectrochemical quartz crystal microbalance (EQCM) and atomic force microscop y (AFM) results converge to indicate that stable and porous films are forme d, which should be suitable for electrocatalysis studies on a molecular bas is. (C) 2000 Elsevier Science S.A. All rights reserved.