title: A highly luminescent terbium-organic framework for reversible detection of mercury ions in aqueous solution.
abstract: A new organic-lanthanide framework [TbL1.5(H2O)2]·H2O (1) [H2L = 5-(3'-carboxylphenyl)nicotinic acid] was synthesized. Its structure was determined by single crystal X-ray diffraction. The complex was characterized by PXRD, FT-IR, fluorescence as well as TGA, and features a 3D framework with a 1D channel and exhibits exceptionally high thermal stability up to 440 °C in air. Furthermore, it displays highly sensitive and selective luminescence quenching to Hg(2+) in aqueous solution. The result of a reversible sensing experiment showed complex 1 could be reusable at least 5 times.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, P R China.
authors.forename: Hong-Ming
authors.initials: HM
authors.lastname: Wang
authors.forename: Yang-Yi
authors.initials: YY
authors.lastname: Yang
authors.forename: Cheng-Hui
authors.initials: CH
authors.lastname: Zeng
authors.forename: Tian-Shu
authors.initials: TS
authors.lastname: Chu
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Zhu
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng