Photoinduced pH drops in water

被引：35

作者：

Emond, Matthieu ^{[1
]}

Sun, Jing ^{[1
]}

Gregoire, Jean ^{[1
]}

Maurin, Sylvie ^{[1
]}

Tribet, Christophe ^{[1
]}

Jullien, Ludovic ^{[1
]}

机构：

[1] Paris 06 8640 Pasteur, UMR CNRS ENS UPMC, Ecole Normale Super, Dept Chim, F-75231 Paris 05, France

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 14期

关键词：

MULTIWAVELENGTH SPECTROSCOPIC DATA; EQUILIBRIUM-CONSTANTS; PROTON-TRANSFER; AQUEOUS-SOLUTION; GLASS-ELECTRODE; MOLECULES; LIGHT; NITROBENZALDEHYDE; PHTHALIMIDES; REACTIVITY;

D O I：

10.1039/c0cp02464c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：6493 / 6499

页数：7

共 46 条

[1] AUTOPROTOLYSIS CONSTANTS AND STANDARDIZATION OF THE GLASS-ELECTRODE IN ACETONITRILE WATER MIXTURES - EFFECT OF SOLVENT COMPOSITION [J].