STM observation of 12-hydroxyoctadecanoic acid and its 4,4′-bipyridinium salt self-assembled on a graphite surface†

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Abstract
Self-assembled monolayers of the gelling agent, 12-hydroxyoctadecanoic acid and its 4,4′-bipyridinium salt have been observed on the solution graphite interface using scanning tunnelling microscopy (STM) and the molecular patterns are discussed wth respect to the intermolecular hydrogen bond network.