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Molecular Superlattices Induced by Alkyl Substitutions in Self-Assembled Triphenylene Monolayers
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2001
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Molecular SuperlatticesCrystal StructureSupramolecular AssemblyEngineeringMolecular Self-assemblyChemistryCrystal FormationMaterials ScienceMolecular SolidCrystal MaterialNanotechnologyMolecular MaterialPhysical ChemistrySuch LatticesCrystallographyCrystal Structure DesignD CrystallizationMolecular Steric InteractionNatural SciencesSelf-assemblySurface ScienceApplied PhysicsGrapheneMolecule-based Material
The configuration of the superlattices, formed from liquid-crystalline molecules on a graphite surface, are controllable through their alkyl substituents. This control may be attributed to the interplay of molecular steric interaction and the 2 D crystallization of alkyl chains. Two such lattices, as observed by STM, are shown in the accompanying graphic (C12- and (inset) C14-substituted molecules).