Simple electrooptical sensors for inorganic anions.
[reaction: see text] Electrooptical sensors consisting of a conjugated chromophore undergoing a change in color and a redox-active moiety such as quinone fused to the chromophore were synthesized. Strong changes in colorimetric and electrochemical properties were observed in the presence of inorganic anions. A unique anion-specific response was observed for fluoride, pyrophosphate, and acetate. DFT (B3LYP/6-31G) calculations performed for both "on/off" states of a sensor-fluoride model are in good agreement with the observed electrochemical and spectroscopic data.
Anzenbacher
Pavel
P
Center for Photochemical Sciences and Department of Chemistry, Bowling Green State University, Ohio 43403, USA. pavel@bgnet.hgsu.edu
Palacios
Manuel A
MA
Jursíková
Karolina
K
Marquez
Manuel
M