Synthesis, Structure, and Photoluminescence Properties of a Novel 3D 3d— 4f Heterometallic Polymer: Pr4(H2O)_9Cu_(3.5)Cl_(0.5)(Bpdc)_(6.5)(OH)_2 · 5H2O (H2Bpdc = 2,2'-Bipyridyl-5,5-dicarboxylic Acid)

摘要

A novel 3D 3d-4f heterometallic polymer Pr4(H2O)_9Cu_(3.5)Cl_(0.5)(Bpdc)_(6.5)(OH)_2 · 5H2O (I) (H2Bpdc = 2,2'-bipyridyl-5,5'-dicarboxylic acid) has been hydrothermally synthesized by the reaction of CuCl2 · 2H2O, PrCl3, H2Bpdc, TAA (TAA = 1H-tetrazolyl-1 -acetic acid) and glacial acetic acid and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. Single-crystal structural analysis shows that I displays an interesting heterometallic 3D coordination framework constructed from 2D praseodymium—oxygen layers and [Cu(Bpdc)_2]~(3-) and [CuCl(Bpdc)]~(2-) pillars. The photofmores-cence properties of I have been investigated.