title: Solvent-dependent zinc(II) coordination polymers with mixed ligands: selective sorption and fluorescence sensing.
abstract: Starting from the same metal salts and mixed organic ligands of 1,3,5-tris(1-imidazolyl)benzene (tib) and 2-bromo-1,4-benzenedicarboxylic acid (H2BDC-Br), two novel zinc(II) coordination polymers [Zn2(tib)2(BDC-Br)]2·2SO4·17H2O (1) and [Zn4(tib)2(BDC-Br)3(H2O)4SO4]·7.5H2O·2.5DMF (2) (DMF = N,N-dimethylformamide) were obtained by using different solvent systems of DMF/H2O and DMF/EtOH/H2O, respectively. 1 is an unusual (3,4)-connected 3D net with a Point symbol of {4·8·10(4)}{4·8·10}, while 2 is a complicated 1D chain, which is further connected to form a 3D supramolecular architecture by hydrogen bonding interactions. In particular, 1 and 2 exhibit selective adsorption of CO2 over N2 and show good selectivity for detection of acetone via fluorescence quenching.
authors.affiliation: Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China. sunwy@nju.edu.cn.
authors.forename: Ji-Ai
authors.initials: JA
authors.lastname: Hua
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yan-Shang
authors.initials: YS
authors.lastname: Kang
authors.forename: Yi
authors.initials: Y
authors.lastname: Lu
authors.forename: Wei-Yin
authors.initials: WY
authors.lastname: Sun
mesh_terms: D000327:Adsorption; D001555:Benzene Derivatives / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry*; D004126:Dimethylformamide / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D005453:Fluorescence; D008024:Ligands; D009584:Nitrogen / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D056831:Coordination Complexes; D008024:Ligands; D011108:Polymers; D012997:Solvents; D014867:Water; D002245:Carbon Dioxide; D000431:Ethanol; D004126:Dimethylformamide; D015032:Zinc; D009584:Nitrogen