Synthesis and properties of a Pr(III) complex with 2-acetyl- benzimidazoledehyde-glycine Schiff-base ligand  

作　　者：WANG Danghui YANG Yixin YANG Yiqin ZHAO Tiancheng WU Xing WANG Shaokang HOU Yao CHEN Weizong 

机构地区：[1]Department of Chemistry, Northwest University/Shaanxi Key Laboratory of Physicoinorganic Chemistry, Xi'an 710069, China [2]UHORN Intelligent Engineering PTE Ltd., Xi'an 710043, China [3]Department of Chemical Engineering, Northwest University, Xi'an 710069, China [4]Department of Physics, Northwest University, Xi'an 710069, China

出　　处：《Chinese Science Bulletin》2006年第7期785-790,共6页

摘　　要：The 2-acetyl-benzimidazoledehyde-gly- cine Schiff-base ligand and the corresponding Pr(III) complex Pr2L3(NO3)3·2CH3OH (L=C11H10N3O2) were synthesized in methanol and characterized by a series of methods, including chemical analysis, elemental analysis, TOF-MS, 1H NMR, UV-, IR-, Raman spectra, thermal analysis, and the three-dimension fluores- cence excitation and emission spectra. The Pr(III) complex exhibits extraordinary water-solubility and the Pr(III) hydroxide appears at pH≥13. The complex also possesses specific fluorescent properties. Thus, at the excitation wavelengths 200.0-280.0 and 260-350 nm the fluorescence bands were observed at 290.0 and 400.0 nm, respectively.Abstract The 2-acetyl-benzimidazoledehyde-glycine Schiff-base ligand and the corresponding Pr（Ⅲ） complex Pr2L3（NO3）3· 2CH3OH （L=C11H10N3O2） were synthesized in methanol and characterized by a series of methods, including chemical analysis, elemental analysis, TOF-MS, ^1H NMR, UV-, IR-, Raman spectra, thermal analysis, and the three-dimension fluorescence excitation and emission spectra. The Pr（Ⅲ） complex exhibits extraordinary water-solubility and the Pr（Ⅲ） hydroxide appears at pH≥13. The complex also possesses specific fluorescent properties. Thus, at the excitation wavelengths 200.0-280.0 and 260-350 nm the fluorescence bands were observed at 290.0 and 400.0 nm, respectively.

关 键 词：稀土 配合物 镨 荧光光谱 发射光谱 

分 类 号：O614.33[理学—无机化学] O641.4[理学—化学]