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Photo-electrochromic salt composed by viologen cation and diarylethene anion derivatives
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Orientador(es)
Resumo(s)
A multi-responsive photo and electrochromic salt based on a viologen derivative ([(C10)2Bpy]2+) as organic cation combined with diarylethene anion ([DTE]2−) is synthesized and characterized for the first time. The coloration of this functional salt can be modulated by light and electricity according to further applications. Photochemical determination of the quantum yields in solution for the ring-opening and closure of [(C10)2Bpy][DTE-COO] ionic liquid have been determined. The electrochemical and electrochromism performance have been also studied in order to evaluate the reduction of bipyridinium cation as well as the oxidation of the DTE anion in its open and closed forms. The possibility of individually addressing the redox state of the anion and cation is seen as a very attractive approach to designing photo-electrochromic devices.
Descrição
Funding Information: This work was supported by the Associate Laboratory for Green Chemistry‐LAQV which is financed by national funds from FCT/MCTES (UID/QUI/50006/2019). The authors thank the Portuguese Foundation for Science and Technology/MCTES. For funding of the project “SunStorage‐ Harvesting and storage of solar energy”, with reference POCI‐01‐0145‐FEDER‐016387, and the position of Hugo Cruz in the scope of the framework contract foreseen in the numbers 4, 5, and 6 of article 23 of the Decree‐Law 57/2016 of 29 August, changed by Law 57/2017 of 19 July. Marc Villabona, Sara Santiago, Jordi Hernando and Gonzalo Guirado thank the Agencia Estatal de Investigación (PID2019‐106171RB‐100/AEI/10.13039/501100011033 project) of Spain for financial support. Marc Villabona thank the Spanish Ministry for Education, Culture, and Sports for his predoctoral FPU. Publisher Copyright: © 2022 The Authors. Electrochemical Science Advances published by Wiley-VCH GmbH.
Palavras-chave
diarylethene anion ionic Liquids multi-stimuli responsive materials photo-electrochromism viologen cation Chemistry (miscellaneous) Electrochemistry