A Series of Three-Dimensional Lanthanide-Rigid-Flexible Frameworks: Synthesis, Structure, and Luminescent Properties of Coordination Polymers with 2,5-Pyridine Dicarboxylic Acid and Adipic Acid

作者：Wang Chun Guang; Xing Yong Heng^*; Li Zhang Peng; Li Jing; Zeng Xiao Qing; Ge Mao Fa; Niu Shu Yun

来源：Crystal Growth & Design, 2009, 9(3): 1525-1530.

DOI：10.1021/cg801157k

A new series of lanthanide coordination polymers, namely, [Ln(ad)(0.5)(2,5-pydc)(H(2)O)] (Ln = Eu (1), Pr (2), Nd (3), Sm (4), Tb(5); H(2)ad = adipic acid; 2,5-H(2)Pydc = 2,5-pyridine dicarboxylic acid), have been synthesized hydrothermally from the self-assembly of the lanthanide ions (Ln(3 )) with the flexible adipic dicarboxylate ligand and the rigid 2,5-pyridine dicarboxylic acid ligand. All of them were characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. Structural analyses reveal that all five complexes have intricate three-dimensional net-structures, and in these complexes, they were crystallized in monoclinic space group P2(1)/c. In addition, the phase purities of the bulk samples were identified by X-ray powder diffraction. The thermogravimetric analysis of I and photoluminescent properties of 1 and 5 are discussed in detail.

• 出版日期2009-3
• 单位辽宁师范大学; 中国科学院