Cui, Jiehu Du, Xiuhong Li, Chunguang Two new 3D Cd(II) MOFs based on a C-centered triangular flexible carboxylate and two pyridine auxiliary ligands <p>Two novel 3D coordination polymers {[Cd<sub>3</sub>(TCOPM)<sub>2</sub>dpe]·6H<sub>2</sub>O·DMF}<sub>n</sub> (1) and {[Cd<sub>3</sub>(TCOPM)<sub>2</sub>pdp]·5H<sub>2</sub>O·DMF}<sub>n</sub> (2) based on a C-centered tripodal flexible carboxylate ligand (H<sub>3</sub>TCOPM = tris(p-carboxyphenyl)methane) and two pyridine mixed ligands (dpe = 1,2-di-4- pyridylethene, pdp = 4,4′-Azopyridine) with (3.4<sup>2</sup>)<sub>2</sub>(3<sup>6</sup>.4<sup>14</sup>.5<sup>18</sup>.6<sup>18</sup>.7<sup>8</sup>.8<sup>2</sup>)(3) net have been synthesized by hydrothermal method. MOFs <b>1</b> and <b>2</b> consist of an infinite 3D network using TCOPM<sup>3−</sup> and bpe/pdp as mixed bridge ligands. Fluorescence spectrum measurement indicates that MOF <b>1</b> shows strong fluorescence emission spectrum at 451 nm (λ<sub>max</sub>) in the solid state at room temperature and realizes tunable emission spectrum through tuning from single ligand to mixed ligand. CCDC 1496181 (<b>1</b>) and 1526766 (<b>2</b>).</p> TCOPM;bpe;pdp;Fluorescence;MOF 2017-11-28
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10.6084/m9.figshare.5640577.v1