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Jimenez, A, Pinheiro C, Parola AJ, Maestri M, Pina F.  2007.  The chemistry of 6-hydroxyflavylium: zwitterionic base and p-quinoidal chalcones. A multiswitchable system operated by proton, electron and photon inputs, 2007. Photochemical & Photobiological Sciences. 6:372-380. Abstract

The complex network of chemical reactions of the compound 6-hydroxyflavylium perchlorate was studied by different techniques including UV-vis absorption spectrophotometry, stopped-flow, electrochemistry, and photochemistry. The network is characterized by the formation of a very reactive zwitterionic base as well as by p-quinoidal chalcones. The trans-chalcone is metastable in very acidic solutions and exhibits reversible redox reactions, allowing to introduce for the first time in the flavylium network an electrochemical input.

Jordao, N, Cruz H, Branco A, Pina F, Branco LC.  2015.  Electrochromic Devices Based on Disubstituted Oxo-Bipyridinium Ionic Liquids. Chempluschem. 80:202-208., Number 1 Abstract
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Jordao, N, Cruz H, Branco A, Pina F, Branco LC.  2015.  Electrochromic Devices Based on Disubstituted Oxo-Bipyridinium Ionic Liquids, 2015. Chempluschem. 80(1):202-208. Abstract
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Jordao, N, Cruz H, Branco A, Pinheiro C, Pina F, Branco LC.  2015.  Switchable electrochromic devices based on disubstituted bipyridinium derivatives. Rsc Advances. 5:27867-27873., Number 35 Abstract
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Jordao, N, Cabrita L, Pina F, Branco LC.  2014.  Novel Bipyridinium Ionic Liquids as Liquid Electrochromic Devices. CHEMISTRY-A EUROPEAN JOURNAL. 20(4):3982-3988.
Jordao, N, Cruz H, Branco A, Pinheiro C, Pina F, Branco LC.  2015.  Switchable electrochromic devices based on disubstituted bipyridinium derivatives, 2015. Rsc Advances. 5(35):27867-27873. Abstract
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Jordao, N, Cruz H, Branco A, Pinheiro C, Pina F, Branco LC.  2017.  {Switchable electrochromic devices based on disubstituted bipyridinium derivatives}. {RSC ADVANCES}. {5}:{27867-27873}., Number {35} Abstract
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Jordao, N, Cabrita L, Pina F, Branco LC.  2014.  Novel Bipyridinium Ionic Liquids as Liquid Electrochromic Devices. Chemistry-a European Journal. 20:3982-3988., Number 14 Abstract
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Jordao, N, Cruz H, Branco A, Pina F, Branco LC.  2017.  {Electrochromic Devices Based on Disubstituted Oxo-Bipyridinium Ionic Liquids}, {JAN}. {CHEMPLUSCHEM}. {80}:{202-208}., Number {1} Abstract
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