ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
A naked-eye, selective and sensitive chemosensor for fluoride ion
Puhui Xie, Fengqi Guo, Weifeng Wang, and Xiyang Liu
College of Sciences, Henan Agricultural University, Zhengzhou, 450002 China
Abstract: Effect of the addition of six different anions on the absorption and fluorescence spectra of acridine yellow G (AYG) was examined.
Only the F− anion could induce a visible color change observable with naked eye and a strong fluorescence quenching with K
SV of 8.3 × 104 mol−1 L in CH3CN solutions. Calculated results of the interaction between the F− anion and acridine yellow G using the B3LYP/6-31G(d) program showed that the intermolecular charge transfer through the formation
of an H-bond between AYG and F− is an essential sensor mechanism.
Keywords: fluoride ion - chemosensor - acridine yellow G - hydrogen bonding
Full paper is available at www.springerlink.com.
Chemical Papers 64 (6) 723–728 (2010)