title: A pillared-layer framework with high uptake and selective sorption of light hydrocarbons.
abstract: A new pillared-layer metal-organic framework [Zn2(NH2-BTB)(2-nim)] () was successfully synthesized based on mixed ligands, where binuclear [Zn2(CO2)3](+) cluster-based cationic layers [Zn2(NH2-BTB)](+) (NH2-H3BTB = 1,3,5-(three-benzoic acid)aniline) are connected by 2-nitroimidazoles. Compound shows high uptake and good adsorption selectivities for C3/C1 and C2/C1. Particularly, the C2H2 uptake capacity of is up to 152 cm(3) g(-1) at 273 K and the selectivity for C3H8/CH4 is over 85 at room temperature.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. wangfei04@fjirsm.ac.cn.
authors.forename: Qing-Rong
authors.initials: QR
authors.lastname: Ding
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. wangfei04@fjirsm.ac.cn.
authors.forename: Fei
authors.initials: F
authors.lastname: Wang