A dynamic study of the structural change in the binary network in response to guest inclusion

Abstract

In the present work flexible binary networks of 1,3,5-benzenetricarboxylic acid (TMA) with 4,4'-bipyridine (Bpy) or 1,3,5-tris(4-pyridyl)-2,4,6-triazine(TPTZ) molecules at the liquid-solid interface were constructed. When coronene (COR) molecules are introduced into these systems, the binary networks collapse and at the same time, new COR/TMA host-guest structures are formed. Both experiments and calculations unambiguously indicate that the COR/TMA host-guest complex structure has stronger adsorption energy, resulting in the deconstruction-reconstruction phenomenon.

Nanoscale Control over the Mixing Behavior of Surface-Confined Bicomponent Supramolecular Networks Using an Oriented External Electric Field

“…When COR was introduced into the system, 4,4′-bipyridine was removed from the surface with exclusive formation of a TMA–COR network. 41 …”

Dynamic host–guest behavior in halogen-bonded two-dimensional molecular networks investigated by scanning tunneling microscopy at the solid/liquid interface

“…[16][17][18][19][20][21][22][23] The 2D porous networks of supramolecular assemblies have attracted much attention because they can capture and immobilize guest molecules in their pores, and they are potentially applicable in molecular devices, nanoelectronics, sensors, catalysis, etc. [24][25][26][27][28][29][30][31][32][33][34] There have been many remarkable studies on the host-guest chemistry at surfaces accommodating guest molecules such as coronene and fullerene, allowing the construction of multi-component molecular assemblies. [24][25][26][27][28][29][30][31][32][33][34] However, in most of these studies, the 2D porous networks were created via hydrogen bonding and dispersion interactions of alkyl chains using rigid molecular building blocks with C 3 symmetry.…”

“…[24][25][26][27][28][29][30][31][32][33][34] There have been many remarkable studies on the host-guest chemistry at surfaces accommodating guest molecules such as coronene and fullerene, allowing the construction of multi-component molecular assemblies. [24][25][26][27][28][29][30][31][32][33][34] However, in most of these studies, the 2D porous networks were created via hydrogen bonding and dispersion interactions of alkyl chains using rigid molecular building blocks with C 3 symmetry. [27][28][29][30][31][32][33][34] In a previous study, 35 we prepared simple and linear molecular building blocks with halogen bonding acceptor and donor units (Py-Cn and FI-Cn (n ¼ 18), respectively, in Chart 1).…”

“…[24][25][26][27][28][29][30][31][32][33][34] However, in most of these studies, the 2D porous networks were created via hydrogen bonding and dispersion interactions of alkyl chains using rigid molecular building blocks with C 3 symmetry. [27][28][29][30][31][32][33][34] In a previous study, 35 we prepared simple and linear molecular building blocks with halogen bonding acceptor and donor units (Py-Cn and FI-Cn (n ¼ 18), respectively, in Chart 1). The binary blends of Py-C18 and FI-C18 formed hexagonal and porous networks, as observed by STM, at the highly oriented pyrolytic graphite (HOPG)/1-phenyloctane interface.…”

Complex Chiral Induction Processes at the Solution/Solid Interface

“…Molecular guests have been known to cause structural changes in supramolecular networks. 30 − 33 Typically it is assumed that the coadsorption of guest molecules within the voids of the low-density network compensates for the thermodynamic penalty associated with the formation of less dense structures. Such dynamic reconstitution of the supramolecular networks occurs only if there is substantial in-plane and out-of-plane dynamics possible.…”