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Electrochemistry of Tetrathiafulvalene Ligands Assembled on the Surface of Gold Nanoparticles
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SYSNO ASEP 0564547 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Electrochemistry of Tetrathiafulvalene Ligands Assembled on the Surface of Gold Nanoparticles Author(s) Janoušek, Jiří (UOCHB-X) RID
Rybáček, Jiří (UOCHB-X) RID, ORCID
Buděšínský, Miloš (UOCHB-X) RID, ORCID
Pospíšil, Lubomír (UOCHB-X) RID, ORCID
Stará, Irena G. (UOCHB-X) RID, ORCID
Starý, Ivo (UOCHB-X) RID, ORCIDArticle number 7639 Source Title Molecules. - : MDPI
Roč. 27, č. 21 (2022)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords gold nanoparticles ; tetrathiafulvalene ; synthesis ; TEM ; spectroscopy ; AC voltammetry OECD category Organic chemistry R&D Projects GA20-23566S GA ČR - Czech Science Foundation (CSF) GX20-03691X GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UOCHB-X - RVO:61388963 UT WOS 000884086200001 EID SCOPUS 85141578145 DOI 10.3390/molecules27217639 Annotation 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. Workplace Institute of Organic Chemistry and Biochemistry Contact asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Year of Publishing 2023 Electronic address https://doi.org/10.3390/molecules27217639
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