Abstract
In situ scanning tunneling microscopy (STM) and cyclic voltammetry were employed to investigate the adsorption structures of three semi-crown ligands on an Au(111) surface under the potential control. It is found that all the molecules formed ordered arrays in 0.1 mol/L HClO4 solution, although their geometric structures are complex and asymmetric. The driving force was supposed to come from the balance between intermolecular and molecule-substrate interactions. High resolution STM images revealed internal molecular structures, orientations and packing arrangements in the ordered adlayers. The results are useful for preparing ordered arrays of transition metal-mediated nanostructures.
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References
Lehn, J.-M., Supramolecular: Concepts and Perspectives, New York: VCH, 1995.
Stupp, S. I., LeBonheur, V., Walker, K. et al., Supramolecular materials: Self-organized nanostructures, Science, 1997, 276: 384- 389.
Sijbesma, R. P., Beijer, F. H., Brunsveld, L. et al., Reversible polymers formed from self-complementary monomers using quadruple hydrogen bonding, Science, 1997, 278: 1601–1604.
Lopes, W. A., Jaeger, H. M., Hierarchical self-assembly of metal nanostructures on diblock copolymer scaffolds, Nature, 2001, 414: 735–738.
Schönherr, H., Paraschiv, V., Zapotoczny, S. et al., Unraveling the nanostructure of supramolecular assemblies of hydrogen-bonded rosettes on graphite: An atomic force microscopy study, P. Natl. Acad. Sci. USA, 2002, 99: 5024–5027.
Klok, H.-A., Jolliffe, K. A., Schauer, C. L. et al., Self-assembly of rodlike hydrogen-bonded nanostructures, J. Am. Chem. Soc., 1999, 121: 7154–7155.
Seidel, S. R., Stang, P. J., High-symmetry coordination cages via self-assembly, Acc. Chem. Res., 2002, 35: 972–983.
Stang, P. J., Olenyuk, B., Self-assembly, symmetry, and molecular architecture: Coordination as the motif in the rational design of supramolecular metallacyclic polygons and polyhedra, Acc. Chem. Res., 1997, 30:502–518.
Leininger, S., Olenyuk, B., Stang, P. J., Self-assembly of discrete cyclic nanostructures mediated by transition metals, Chem. Rev., 2000, 100: 853–907.
Fujita, M., Metal-directed self-assembly of two- and three-dimensional synthetic receptors, Chem. Soc. Rev., 1998, 27: 417–425.
Jones, C. J., Transition metals as structural components in the construction of molecular containers, Chem. Soc. Rev., 1998, 27: 289–299.
Itaya, K., In situ scanning tunneling microscopy in electrolyte solutions, Prog. Surf. Sci., 1998, 58: 121–247.
Kolb, D. M., An atomistic view of electrochemistry, Surf. Sci., 2002, 500: 722–740.
Li, H.-J., Tian, H.-Y., Chen, Y.-J. et al., Novel chiral gallium Lewis acid catalysts with semi-crown ligands for aqueous asymmetric Mukaiyama aldol reactions, Chem. Commun., 2002, 24: 2994–2995.
Wan, L.-J., Terashima, M., Noda, H. et al., Molecular orientation and ordered structure of benzenethiol adsorbed on gold(111), J. Phys. Chem. B, 2000, 104: 3563–3569.
Angerstein-Kozlowska, H., Conway, B. E., Hamelin, A. et al., Elementary steps of electrochemical oxidation of single-crystal planes of Au Part II. A chemical and structural basis of oxidation of the (111) plane, J. Electroanal. Chem., 1987, 228: 429–453.
Wild, M., Berner, S., Suzuki, H. et al., A novel route to molecular self-assembly: Self-intermixed monolayer phases, Chem. Phys. Chem., 2002, 10:881–885.
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Pan, G., Li, H., Yuan, Q. et al. Ordered arrays of semi-crown ligands on an Au(111) electrode surface: in situ STM study. Sc. China Ser. B-Chem. 47, 320–325 (2004). https://doi.org/10.1360/04yb0019
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DOI: https://doi.org/10.1360/04yb0019