Light-induced structural transformation in self-assembled monolayer of 4-(amyloxy) cinnamic acid investigated with scanning tunneling microscopy

Article Abstract:

Electrochemical scanning tunneling microscopy (ECSTM), cyclic voltammetry and infrared (IR) spectroscopy were used for examining the effect of ultraviolet (UV) irradiation on the structural transformation in a self-assembled monolayer of 4-(amyloxy)-cinnamic acid (AOCA) on Au (111). A new adlayer with different molecular arrangement and a symmetry of (5*8) is observed after UV-light irradiation onto the adlayer.

Electric properties, Ultraviolet radiation

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Molecular architecture of oligothiophene on a highly oriented pyrolytic graphite surface by employing hydrogen bondings

Article Abstract:

A series of oligothiophenes with carboxylic groups and alkane chains are synthesized to achieve a controllable and predictable molecular architecture on a two-dimensional (2D) surface. The analysis has shown that the hydrogen bonding plays an essential role in the formation of the ordered assemblies and a controlled 2D molecular assembly is fabricated by using hydrogen bondings.

Hydrogen bonding, Hydrogen bonds, Graphite, Thiophene

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Time-dependent organization and wettability of decanethiol self-assembled monolayer on Au(111) investigated with STM

Article Abstract:

A study on the time-dependent organization of a decanethiol self-assembled monolayer (SAM) at a designed solution concentration onto a Au(111) surface is performed with scanning tunneling microscopy (STM). The results revealed that the formation process and structure of decanethiol SAMs were well related to sample preparation conditions.

All Other Basic Organic Chemical Manufacturing, Industrial Organic Chemicals, Mercaptans, Usage, Design and construction, Monomolecular films, Thiols

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