A 1-D chain praseodymium complex with chelidamic acid: synthesis, structure, and optical properties

作者：Zou Jian Ping^*; Wen Zhen Hai; Peng Qiang; Zeng Gui Sheng; Xing Qiu Ju; Chen Mei Hong

来源：Journal of Coordination Chemistry, 2009, 62(20): 3324-3331.

DOI：10.1080/00958970903062871

• Coordination polymer
• Crystal structure
• Luminescence
• Synthesis

The title compound [Pr(C7H3NO5)(C7H4NO5)(H2O)2]n center dot 1.25nH2O (1) or [Pr(HChel)(H2Chel)(H2O)2]n center dot 1.25nH2O, where H3Chel is 4-hydroxypyridine-2,6-dicarboxylic (chelidamic) acid, was synthesized by reaction of chelidamic acid, PrCl3 center dot 6H2O and H2O under hydrothermal conditions, and characterized by X-ray single-crystal diffraction. The crystal structure of 1 reveals that Pr is nine-coordinate with distorted tricapped trigonal prismatic coordination. Coordination polyhedra are interlinked into a 1-D chain, further linked by hydrogen bonds into a 3-D network. Fluorescence spectra exhibit strong green luminescence with maximum emission at 530 nm when excited with ex = 475 nm, originating from -* of the ligand.

• 出版日期2009
• 单位南昌航空大学