Tetrazoleacetic acid templated 3d-4f heterometallic-organic frameworks constructed from different ligands: structures, luminescence, magnetism and photocatalytic properties

<p>A series of 3-D lanthanide-transition 3d-4f heterometallic complexes have been synthesized by hydrothermal route from mixtures of 2,2′-bipyridyl-5,5′-dicarboxylic acid (H<sub>2</sub>bpdc) and acetic acid (HAc) with tetrazoleacetic acid as template. The single-crystal X-ray analysis shows that nine CdLn(H<sub>2</sub>O)<sub>2</sub>Cl<sub>2</sub>(bpdc)Ac complexes (Ln = La for <b>1</b>, Pr for <b>2</b>, Nd for <b>3</b>, Sm for <b>4</b>, Eu for <b>5</b>, Gd for <b>6</b>, Dy for <b>7</b>, Ho for <b>8</b>, Er for <b>9</b>) crystallized in the space group <i>P</i>-1 and featured three-nodal (3, 4, 6)-three connected topological frameworks. The photocatalytic behaviors imply that <b>1</b>–<b>9</b> have significant photocatalytic activities for degradation of RhB.</p>