Abstract

A new microporous metal–organic framework, [Cd(bpdc)0.5(atz)(DMF)]·0.5DMF (1) (H2bpdc=4,4′-biphenyldicarboxylic acid, Hatz=3-amino-1,2,4-triazole, DMF=N,N-dimethylformamide) has been solvothermally synthesized by employing the mixed H2bpdc and Hatz ligands. 1 is a 3D pillared-layer framework, consisting of Cd–triazolate layer and dicarboxylate pillar, which exhibits a 6-connected (46·68·8) self-penetrating net. Because of the pore system functionalized by amino groups and open metal sites, this material shows high CO2 adsorption selectivity over H2 and N2. In addition, 1 exhibits blue emission at ambient temperature.

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