In this work, we employed a new tetrazolyl-functionalized ligand, 5-(1H-tetrazole-5-yl)-1,3-bis(3,5-dicarboxylphenyl)-benzene (HTBDPB), and successfully obtained an example of incorporating free tetrazolyl groups in transition-metal-based MOFs based upon an ideal MOF platform. With a BET surface area of 2070 m g, this new tetrazolyl-decorated MOF [Cu(TBDPB)(HO)]·9DMF·15HO (HHU-5, HHU for Hohai University) exhibits a high CO adsorption capacity of 37.1 wt % at 1 bar and 273 K and high CO separation capacity toward N and CH as well.
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