Publications by authors named "Truong Khoa Tran"

A crown-ether dithiol quaterthiophene is synthesized and immobilized on gold surface by double covalent fixation. UV-vis spectroscopy and cyclic voltammetry show that the corresponding dithioester precursor can complex Pb(2+) in solution and that this property is maintained for monolayers of the dithiol on gold. Current-voltage measurements by eutectic GaIn drop contact on the monolayer show a significant increase (up to 1.

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The synthesis and characterization of a series of quaterthiophenes (4Ts) with thiolate groups protected with 2-cyanoethyl (CNE), 2-trimethylsilylethyl (TMSE), and acetyl (Ac) groups are described. Sequential cleavage of these different protecting groups allows for the preparation of 4Ts derivatized with ferrocene and/or alkanethiol chains. The electrochemical behavior of these compounds has been analyzed in solution by cyclic voltammetry (CV).

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Article Synopsis
  • Quaterthiophenes with one or two alkanethiol chains attached at the beta-position have been synthesized and analyzed for their electrochemical properties.
  • Electrooxidation of the doubly substituted oligomer results in the formation of a poly(disulfide) layer on the anode surface during cyclic voltammetry experiments.
  • The study compares the effects of single versus double fixation of quaterthiophene chains on gold surfaces, revealing that double fixation enhances stability and alters electrochemical behaviors.
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