Electrochemistry of Tetrathiafulvalene Ligands Assembled on the Surface of Gold Nanoparticles

0564547 - ÚOCHB 2023 RIV CH eng J - Článek v odborném periodiku
Janoušek, Jiří - Rybáček, Jiří - Buděšínský, Miloš - Pospíšil, Lubomír - Stará, Irena G. - Starý, Ivo
Electrochemistry of Tetrathiafulvalene Ligands Assembled on the Surface of Gold Nanoparticles.
Molecules. Roč. 27, č. 21 (2022), č. článku 7639. E-ISSN 1420-3049
Grant CEP: GA ČR(CZ) GA20-23566S; GA ČR(CZ) GX20-03691X
GRANT EU: European Commission(XE) 213382 - FUNMOL
Institucionální podpora: RVO:61388963
Klíčová slova: gold nanoparticles * tetrathiafulvalene * synthesis * TEM * spectroscopy * AC voltammetry
Obor OECD: Organic chemistry
Impakt faktor: 4.6, rok: 2022
Způsob publikování: Open access
https://doi.org/10.3390/molecules27217639

The synthesis of a tetrathiafulvalene (TTF) derivative, S-[4-({4-[(2,2 '-bi-1,3-dithiol-4-ylmethoxy)methyl] phenyl}ethynyl)phenyl] ethanethioate, suitable for the modification of gold nanoparticles (AuNPs), is described in this article. The TTF ligand was self-assembled on the AuNP surface through ligand exchange, starting from dodecanethiol-stabilized AuNPs. The resulting modified AuNPs were characterized by TEM, UV-Vis spectroscopy, and electrochemistry. The most suitable electrochemical method was the phase-sensitive AC voltammetry at very low frequencies of the sine-wave perturbation. The results indicate a diminishing electronic communication between the two equivalent redox centers of TTF and also intermolecular donor-acceptor interactions manifested by an additional oxidation wave upon attachment of the ligand to AuNPs.
Trvalý link: https://hdl.handle.net/11104/0336232