Molecular self-assembly is a powerful strategy for the bottom-up construction of complex, highly-ordered structures.  As such, developments in organic synthesis and molecular design can lead to new strategies and greater understanding of the intermolecular forces at work in these systems.  To investigate the roles of such interactions, a series of conformationally locked aryl-triazole oligomers have been synthesized and their self-assembly on HOPG at the solid-liquid interface has been characterized using scanning tunneling microscopy (STM).  The molecular design elements of this system include intramolecular preorganization and four attachment points displaying lengthened alkyl chains.  The modularity of the �click�-chemistry strategy allowed a systematic investigation of how the relative lengths and spatial orientation of these alkyl chains affected surface patterning.  In addition, in situ mixing of various anions with the preadsorbed receptors drives the formation of supramolecular bilayers.  Progress towards elucidating the packing model and bilayer characterization will be presented.

Self-assembly of aryl-triazole oligomers into zipper patterns and bilayers

244th National Meeting (2012)

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