Packing and structure within ultrathin organic films can have a dramatic impact on bulk and interfacial properties, such as the ability of the film to provide corrosion resistance to the underlying substrates, especially to microelectronic devices. This communication provides a molecular- level examination of the effect of crystallinity on the protection provided to copper by crystalline self-assembled monolayers of n-alkanethiols. These ultrathin films, formed by a simple chemisorption process, are shown to be even more protective than thicker polymer films.
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Jennings et al. (1999) studied this question.