XPS analysis of electronic density of iron tetraazamacrocycle through Fe 2p binding energies on the 3-imidazolilpropyl-modified surface of oxidized n-Si(100)

This paper describes the preparation of metallo-organic thin films of [FeTIM(CH3CN)(2)](2+) complex, where TIM stands for 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene on oxidized silicon wafer, SiO2/Si, previously treated with 3-imidazolilpropyltrimethoxysilane, 3-IPTS. X-ray photoemission lines of Fe2p were used to probe the iron chemical environment in the physically and chemically adsorbed macrocycle complexes. As FeTIM can bind CO, NO or N-heterocycle, a built-on Si wafer sensor device could be envisaged for these molecules. Copyright (C) 2004 John Wiley Sons, Ltd.