Highly organized monolayers can be obtained by the spontaneous self-assembly, under atmospheric conditions, of molecules in a process termed two-dimensional crystallization. The imaging of these adsorbates with submolecular resolution is possible with scanning tunneling microscopy (STM) which allows for an exquisitely detailed understanding of their arrangement and constitution. We combine molecular design, surface science, and computation to develop a detailed understanding of these supramolecular assemblies. Use of this knowledge in the design of structurally more complex layers will allow control of surface properties (oxidation, corrosion, hydrophobicity, etc.) and correlation of these bulk properties with organization at the molecular level.
Ahn. S.; Matzger, A. J. "Additive Perturbed Molecular Assembly in Two-Dimensional Crystals: Differentiating Kinetic and Thermodynamic Pathways" J. Am. Chem. Soc., 2012, 134, 3208-3214 (online)
Morrison, C. N.; Ahn, S.; Schnobrich, J. K.; Matzger, A. J., "Two-Dimensional Crystallization of Carboxylated Benzene Oligomers" Langmuir, 2011, 27, 936-942 (online)
Ahn, S.; Matzger, A. J., "Six Different Assemblies from One Building Block: Two-Dimensional Crystallization of an Amide Amphiphile" J. Am. Chem. Soc. 2010, 132,. 11364-11371 (online)
McClelland, A. A.; Ahn, S.; Matzger, A. J.; Chen, Z., "Deducing 2D Crystal Structure at the Liquid/Solid Interface with Atomic Resolution: a Combined STM and SFG Study" Langmuir 2009, 25, 12847-12850 (online)