title: Selective and colorimetric fluoride anion chemosensor based on s-tetrazines.
abstract: s-Tetrazine and their derivatives are found to be a class of selective and colorimetric chemosensors for fluoride anions. The supramolecular interaction (anion-π and charge/electron transfer) between fluoride ion and π-electron deficient tetrazines receptor could facilitate the F(-)-tetrazines electron transfer (ET) event that generates tetrazine˙(-) radical anion. Accordingly, the color of its solution changed from red to green. Furthermore, the recognition of F(-) in DMSO is tolerant to water (DMSO-H(2)O = 9:1, v/v) and shows excellent selectivity towards other anions, especially H(2)PO(4)(-) and OAc(-).
authors.affiliation: Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Li
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Qin
authors.forename: Runsheng
authors.initials: R
authors.lastname: Jiang
authors.forename: Huibiao
authors.initials: H
authors.lastname: Liu
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Li