A novel lanthanide-organic wave-like network with 1H-Imidazole-4,5-Dicarboxylate and oxalate: Structure, photoluminescence, and magnetic properties

作者：Liu L^*; Liu J; Feng X; Yang S; Wang L Y

来源：Russian Journal of Coordination Chemistry, 2014, 40(5): 314-319.

DOI：10.1134/S1070328414040058

The solvothermal reaction of lanthanide nitrate and H(4)Diida ligand (H(4)Diida = 2-(4,5-dicarboxy-1H-imidazol-2-yl)-1H-imidazole-4,5-dicarboxylic acid) in the presence of ammonium oxalate results in a new three-dimensional (3D) lanthanide-organic framework, namely, {[Pr(Ida)(mu(2)-C2O4)(0.5)(H2O)(2)] center dot H2O} (n) (H(2)Ida = 1H-imidazole-4,5-dicarboxylic acid). H(4)Diida ligand can be in situ into Ida(2-) ions under the conditions, as unequivocally proved by these similar situations occurred in other systems. Single crystal X-ray diffraction analysis reveals the formation of a novel wave-like structure. It crystallizes in the monoclinic system, space group of P2(1)/c. The polymer is built from two kinds of parallel alternately 1D infinite chain through the carboxylate double-linking adjacent Pr3+ cations, forming an extended 2D bilayer-like structure along the yz plane. Moreover, the polymer further stacks via weak interactions to generate a 3D supramolecular framework. The photoluminescence and magnetic properties for the polymer were also investigated and discussed.

• 出版日期2014-5
• 单位郑州大学; 洛阳师范学院; 南阳师范学院