title: Two-dimensional self-assembly of a two-component molecular system: formation of an ordered and homogeneous molecular mesh.
abstract: The formation of nanoscaled objects often relies on the two-dimensional self-assembly of organic molecules on solid substrates, leading to a number of interesting structures with nanometer dimensions. Assembly of single-component systems driven by chain-chain van der Waals interactions, hydrogen bonding, and dipolar interactions governs the structures typically formed. The two-dimensional self-assembly of a two-component molecular system is described here, where the structure involves mixing of the components at the molecular level. A mixture of 5-octadecyloxyisophthalic acid and octanoic acid forms an ordered stoichiometric array of homogeneous nanometer-sized openings of dimension 8.5 A x 13.5 A x1.8 A, verified by atomic resolution scanning tunneling microscopy. Assembly in the structure is driven by van der Waals and hydrogen bonding interactions between the molecular components.
authors.affiliation: Department of Chemistry, Princeton University, Washington Road, Princeton, New Jersey 08544-1009, USA.
authors.forename: Feng
authors.initials: F
authors.lastname: Tao
authors.forename: Steven L
authors.initials: SL
authors.lastname: Bernasek
mesh_terms: D002210:Caprylates / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D010795:Phthalic Acids / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties
chemical_list: C505500:5-octadecyloxyisophthalic acid; D002210:Caprylates; D010795:Phthalic Acids; C031492:octanoic acid