Lanthanide(III) based metal organic frameworks constructed from 5-nitroisophthalate ligand with 2,4,5-tri(4-pyridyl)-imidazole templates: Syntheses, structures, and luminescent properties

作者：Zhang, Dao-Jun; Yu, You-Zhu; Wang, Jun-Jie^*; Wang, Er-Ni; Jin, Feng; Zhang, Meng-Yao; Huang, Hui-Na; Zhao, Qing-Qing; Shi, Yun-Feng^*

来源：Polyhedron, 2016, 117: 703-709.

DOI：10.1016/j.poly.2016.07.006

• 5-Nitroisophthalic acid
• 2,4,5-Tri(4-pyridyl)-imidazole
• La(III) and Nd(III) metal-organic frameworks
• Template effect
• Luminescent properties

Two unprecedented Ln-based metal-organic frameworks (MOFs) based on 5-nitroisophthalic acid (H2L) and 2,4,5-tri(4-pyridyl)-imidazole (Htpim), namely {[H(3)tpim][Ln(2)(L)(4)(H2O)]}(n), [Ln = La (I), Nd (II)] were prepared by solvothermal reactions and characterized by IR, elemental analysis and X-ray diffraction analysis. X-ray single crystal diffraction indicates that complexes I and II display similar 2D 4(4) frameworks with similar tetranuclear [Ln(4)(COO)(16)(H2O)(2)] secondary building units due to the effect of Ln contraction and the same coordination modes of L ligands as well as the template effect of Htpim. Moreover, thermal stabilities and luminescent properties of I and II were also investigated.

• 出版日期2016-10-15
• 单位安阳工学院; 安阳师范学院