Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 13, Issue 14, Pages 6493-6499Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cp02464c
Keywords
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Funding
- Pierre-Gilles de Gennes Fondation
- European program COST System Chemistry [CM0703]
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A 2-hydroxyazobenzene platform has been evaluated to photorelease protons in aqueous solutions. Three different systems relying on molecular, supramolecular and polymeric strategies have been investigated in order to tune the water solubility and the thermodynamic and kinetic properties. This paper first reports on the syntheses and the physico chemical analyses for each system. Subsequently, we show that the three strategies are appropriate to reversibly photo-generate tunable pH drops in water up to one pH unit amplitude and at the 10-100 s timescale, upon transient illumination at 365 nm.
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