Self-assembled monolayers of n-alkanethiolates on copper are barrier films that protect the metal against oxidation by air

摘要: Self-assembled monolayers (SAMs) derived from adsorption of n-alkanethiols onto the surfaces copper slow oxidation surface by reaction with atmospheric dioxygen. Angstrom-level changes in thickness monolayer result readily observable differences (by X-ray photoelectron spectroscopy, XPS) rates and adsorbed thiolates. The thiolates can be decreased ∼50% increasing length adsorbate, thus SAM, four CH 2 units