Molecular Self‐Assembly of Jointed Molecules on a Metallic Substrate: From Single Molecule to Monolayer

Abstract

Organic hinges: The “flexure hinges” in V‐Landers (VL) molecules (C108H104) play an essential role in the adaptability of the molecule to the substrate (see figure). The molecules cannot simply be considered as rigid objects and it is mandatory to take into account their internal molecular degrees of freedom in order to understand the observed structures.

Adsorption of Large Organic Molecules on Clean and Hydroxylated Rutile TiO2(110) Surfaces

“…The molecules seem to interact by spacer groups, which is similar to the behavior of VLs on metallic Cu(100) surfaces as reported in ref. [36]. The formation of a small molecular cluster (dimer or trimer) seems to immobilize the molecules on the surface.…”

Synthesis and Characterization of a Series of Ruthenium Tris(β‐diketonato) Complexes by an UHV‐STM Investigation and Numerical Calculations

“…[1][2][3][4][5][6][7][8] Therefore, studying the functional molecules on a substrate and investigating their behaviour and properties are primary requirements for potential applications, since the molecular deformation due to surface interaction plays a crucial role. [9][10][11] New progress and possibilities in using metal complexes for molecular electronics has been reviewed recently, highlighting that the electronic state of metal complexes is attractive for conducting highly integrated, functional molecular components. [12] In recent years, the investigation of the properties of isolated, individual molecules has been greatly facilitated by scanning tunnelling microscopy (STM).…”

“…Indeed, it is necessary to compare experimental images to theoretical STM ones preceded by molecular mechanics calculations. [11] Results and Discussion A series of Ru III tris(β-diketonato) complexes have previously been synthesized. [37,47,48] Complex 1 has already been obtained in 47 % yield by Endo et al, [47] starting from a "Ruthenium blue solution".…”

UHV-STM Investigations and Numerical Calculations of a Ruthenium β-Diketonato Complex with Protected Ethynyl Ligand: [Ru(dbm)2(acac-TIPSA)]

“…[30][31][32] Although STM is able to give atomic resolution when imaging solid surfaces, mapping of large and complex molecules with submolecular resolution remains a difficult task, since in particular the molecular deformation due to surface interaction plays a crucial role. [33][34][35] Among molecules with magnetic centres, ruthenium complexes may be of particular interest to study charge transfer or transport phenomena at the nanometer scale. [36][37][38][39][40][41][42] In a previous paper, we reported the investigation of a series of ruthenium tris( -diketonato)complexes by UHV-STM.…”