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.
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