Synthesis and photochemical behaviour of novel uranyl-salophen complexes bearing anthracenyl side arms
| Autor: | Alberto Credi, Silvia Bartocci, Serena Silvi, Antonella Dalla Cort, Francesco Yafteh Mihan |
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| Přispěvatelé: | F. Yafteh Mihan, S. Bartocci, A. Credi, S. Silvi, A. Dalla Cort |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Exergonic reaction
Anthracene uranyl salophen complexes pet supramolecular receptors anthracenyl fluorophore uranyl-salophen complexes cyclic voltammetry General Chemistry Photochemistry Fluorescence ANTHRACENE Photoinduced electron transfer Electron transfer chemistry.chemical_compound PET chemistry Excited state Singlet state ELECTRON TRANSFER Cyclic voltammetry |
| Zdroj: | Supramolecular chemistry 25 (2013): 109–115. doi:10.1080/10610278.2012.752089 info:cnr-pdr/source/autori:F. Yafteh Mihan, S. Bartocci, A. Credi, S. Silvi, A. Dalla Cort/titolo:Synthesis and photochemical behaviour of novel uranyl-salophen complexes bearing anthracenyl side arms/doi:10.1080%2F10610278.2012.752089/rivista:Supramolecular chemistry (Print)/anno:2013/pagina_da:109/pagina_a:115/intervallo_pagine:109–115/volume:25 |
| DOI: | 10.1080/10610278.2012.752089 |
| Popis: | In this paper, we report the synthesis and physico-chemical investigation of two uranyl–salophen receptors, bearing either one or two anthracenyl moieties appended to the salophen skeleton. Despite the presence of the anthracenyl fluorophores, no fluorescence emission was detected. Photophysical data and cyclic voltammetric experiments show that photoinduced electron transfer from the anthracene-localised first singlet excited state to the metal centre is strongly exergonic, thus suggesting that this is the main fluorescence quenching mechanism in these complexes. The investigated compounds are photoreactive upon UV irradiation, yielding either anthracene photooxidation or photodimerisation products depending on the specific complex and the experimental conditions. |
| Databáze: | OpenAIRE |
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