title: A zeolite-like zinc triazolate framework with high gas adsorption and separation performance.
abstract: The reaction of commercially available 3-amino-1,2,4-triazole (Hatz) and Zn(OH)(2) at room temperature produced a porous zeolite-like metal azolate framework, [Zn(atz)(2)] (MAF-66). Single-crystal X-ray diffraction studies of MAF-66 showed that atz(-) served as an imidazolate-type ligand, linking tetrahedral Zn(II) ions to form a noninterpenetrated dia framework, which contains a narrow, three-dimensional intersecting channel system (void = 49.8%) functionalized by amino groups and uncoordinated triazolate N atoms on the pore surface. Gas-sorption measurements of MAF-66 revealed high CO(2) uptakes (27.6/19.4 wt % at 273/298 K and 1 atm) and high Henry's law CO(2)/N(2) selectivity (403/225 at 273/298 K). The host-guest interactions between CO(2) and the pore surface were also studied by in situ IR absorption spectroscopy and powder X-ray diffraction measurements.
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 510275, China.
authors.forename: Rui-Biao
authors.initials: RB
authors.lastname: Lin
authors.forename: Da
authors.initials: D
authors.lastname: Chen
authors.forename: Yan-Yong
authors.initials: YY
authors.lastname: Lin
authors.forename: Jie-Peng
authors.initials: JP
authors.lastname: Zhang
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D002245:Carbon Dioxide / Q000737:chemistry*; D008958:Models, Molecular; D009584:Nitrogen / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties; D014230:Triazoles / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D014230:Triazoles; D002245:Carbon Dioxide; D015032:Zinc; D009584:Nitrogen