Self-Assembly of Heterogeneous Supramolecular Structures with Uniaxial Anisotropy

Abstract

Uniaxial anisotropy in two-dimensional self-assembled supramolecular structures is achieved by the coadsorption of two different linear molecules with complementary amine and imide functionalization. The two-dimensional monolayer is defined by a one-dimensional stack of binary chains, which can be forced to line up along steps in vicinal surfaces. The competing driving forces in the self-organization process are discussed in light of the structures observed during single molecule adsorption and coadsorption on flat and vicinal surfaces and the corresponding theoretical calculations.

Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface

“…287 It has been extensively studied 288,289,290 and reviewed 233 The first example of uniaxial anisotropy using phenyldiguanamine (BDATB) was obtained by co-evaporation of NTCDI on gold surfaces. 296 First, on flat Au(111) surfaces, a 2D binary supramolecular structure was formed by packing 1D heteromolecular NTCDI-BDATB rows.…”

Bicomponent Supramolecular Packing in Flexible Phthalocyanine Networks

“…[6][7][8] The preparation of these multicomponent nanostructures allows the formation of more complex patterns including, for example, alternating lines of molecules or honeycomb networks. [9][10][11][12][13] Thus, all these systems rely on relatively strong bonds such as heteromolecular hydrogen or coordination bonds. The characteristics of these interactions in terms of strength, specificity, and reversibility define a network with an overall geometry that is determined by the chemical structures of the two components.…”

Hierarchical Organisation on a Two‐Dimensional Supramolecular Network

“…[7] The ordering of closely related molecules has also been reported by other groups recently. [30,31] By annealing at higher temperature,~90 8C, the hexagonal networks are converted into a parallelogram arrangement (see Figure 2). At the boundary between these two annealing conditions, it is possible for both hexagonal and parallelogram networks (labelled areas a and b in Figure 2 a respectively) to coexist.…”