title: A Water-Stable Metal-Organic Framework with a Double-Helical Structure for Fluorescent Sensing.
abstract: Water instability is a crucial limiting factor in the practical application of most fluorescent metal-organic frameworks (MOFs). Here, by introducing a fascinating double-helical structure generated through dense stacking of organic ligands, a water-stable fluorescence MOF has been synthesized, namely, [Cd2(tib)2(bda)2]·(solvent)n (1) [tib =1,3,5-tris(1-imidazolyl) benzene; H2bda = 2,2'-biphenyl dicarboxylic acid]. This helical structure helps to enhance the stability of 1 against common organic solvents and water, even acid/base aqueous solutions with a pH value ranging from 3 to 11. Furthermore, this material can be a potential fluorescent sensor for ketones.
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.
authors.forename: Xiao-Jing
authors.initials: XJ
authors.lastname: Liu
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.
authors.forename: Ying-Hui
authors.initials: YH
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.
authors.forename: Ze
authors.initials: Z
authors.lastname: Chang
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.
authors.forename: Ai-Lin
authors.initials: AL
authors.lastname: Li
authors.affiliation: Department of Chemistry, Nankai University , Tianjin 300071, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Tian
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.
authors.forename: Zhao-Quan
authors.initials: ZQ
authors.lastname: Yao
authors.affiliation: Department of Chemistry, Nankai University , Tianjin 300071, China.
authors.forename: Yan-Yuan
authors.initials: YY
authors.lastname: Jia
authors.affiliation: School of Materials Science and Engineering, TKL of Metal- and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300350, China.|Department of Chemistry, Nankai University , Tianjin 300071, China.
authors.forename: Xian-He
authors.initials: XH
authors.lastname: Bu