title: Fluorescent recognition of Hg(2+) by a 1,1'-binaphthyl-based macrocycle: a highly selective off-on-off response.
abstract: A 1,1'-bi-2-naphthol-based macrocyclic compound was found to show large fluorescent enhancement at a greatly red-shifted wavelength in the presence of one equiv. Hg(2+) but not with any other metal ions. This change was visually observable from blue-greenish emission to bright yellow emission. The fluorescence was quenched when more than 2.6 equiv. Hg(2+) was added.
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China. gzhang@ustc.edu.cn.
authors.forename: Xiangchuan
authors.initials: X
authors.lastname: Xu
authors.forename: Carl O
authors.initials: CO
authors.lastname: Trindle
authors.forename: Guoqing
authors.initials: G
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Pu