{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["61(28)"],"submitter":["Alessandri I"],"pubmed_abstract":["The photodimerization of 4-aminothiophenol (PATP) into 4,4'-dimercaptobenzene (DMAB) has been extensively utilized as a paradigm reaction to probe the role of surface plasmons in nanoparticle-mediated light-driven processes. Here I report the first observation of the PATP-to-DMAB photoreaction in the absence of any plasmonic mediators. The reaction was observed to occur with different kinetics either for PATP adsorbed on non-plasmonic nanoparticles (TiO<sub>2</sub> , ZnO, SiO<sub>2</sub> ) or deposited as macroscopic droplets. Confocal microRaman spectroscopy enabled to investigate the reaction progress in different plasmon-free contexts, either aerobic or anaerobic, suggesting a new interpretation of the photodimerization process, based on direct laser-induced activation of singlet oxygen species. These results provide new insights in light-driven redox processes, elucidating the role of sample morphology, light and oxygen."],"journal":["Angewandte Chemie (International ed. in English)"],"pagination":["e202205013"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9401036"],"repository":["biostudies-literature"],"pubmed_title":["4-Aminothiophenol Photodimerization Without Plasmons."],"pmcid":["PMC9401036"],"pubmed_authors":["Alessandri I"],"additional_accession":[]},"is_claimable":false,"name":"4-Aminothiophenol Photodimerization Without Plasmons.","description":"The photodimerization of 4-aminothiophenol (PATP) into 4,4'-dimercaptobenzene (DMAB) has been extensively utilized as a paradigm reaction to probe the role of surface plasmons in nanoparticle-mediated light-driven processes. Here I report the first observation of the PATP-to-DMAB photoreaction in the absence of any plasmonic mediators. The reaction was observed to occur with different kinetics either for PATP adsorbed on non-plasmonic nanoparticles (TiO<sub>2</sub> , ZnO, SiO<sub>2</sub> ) or deposited as macroscopic droplets. Confocal microRaman spectroscopy enabled to investigate the reaction progress in different plasmon-free contexts, either aerobic or anaerobic, suggesting a new interpretation of the photodimerization process, based on direct laser-induced activation of singlet oxygen species. These results provide new insights in light-driven redox processes, elucidating the role of sample morphology, light and oxygen.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jul","modification":"2025-06-01T01:32:25.863Z","creation":"2025-06-01T01:32:25.863Z"},"accession":"S-EPMC9401036","cross_references":{"pubmed":["35532974"],"doi":["10.1002/anie.202205013"]}}