A New Zn(II) Coordination Polymer With Two-Fold pcu Topological Net Based on Dicarboxylate and Imidazole-Containing Ligands: Synthesis, Crystal Structure, and Luminescent Property.

A new zinc(ιι) coordination polymer with 2,5-thiophene dicarboxylic acid (H2tda) and 1,4-bis(2-methyl-1H-imidazol-1-ylmethy) benzene(bmib) has been prepared by hydrothermal synthesis and characterized by single-crystal X-ray diffraction, IR, and EA. Complex [Zn2(tda)2(bmib)]n(1), is monoclinic, space groupC2/cwitha= 14.215 (2),b= 16.579(3),c= 14.711(3) Å,β= 90.823(6)°,V= 3467(2) Å3,Z= 8,Mr= 737.36,Dc= 1.413 g/cm3,F(000) = 1496andμ= 1.553 cm−1. The final refinement gaveR= 0.0535 andwR= 0.0682 for 3104 reflections withI> 2σ(I). X-ray diffraction analysis reveals that the title compound [Zn2(tda)2(bmib)]n(1) displays a twofold interpenetrating three-dimensional pcu network. Furthermore, the luminescent property of complex 1 is investigated, which demonstrates that [Zn2(tda)2(bmib)]n(1) may be a good candidate as a photoactive material. [ABSTRACT FROM AUTHOR]