Citation: ZHANG Jie, WANG Juan-Fen, ZHANG Jian-Jun. Synthesis, Characterization and Thermal Decomposition Mechanism of Rare Earth Complexes with 5-Chloro-2-methoxybenzoic Acid and 1,10-Phenanthroline[J]. Acta Physico-Chimica Sinica, ;2012, 28(02): 290-296. doi: 10.3866/PKU.WHXB201112121 shu

Synthesis, Characterization and Thermal Decomposition Mechanism of Rare Earth Complexes with 5-Chloro-2-methoxybenzoic Acid and 1,10-Phenanthroline

1.
1. Shijiazhuang Pharmaceutical Group, Hebei Zhongrun Pharmaceutical Co., Ltd., Shijiazhuang 050041, P. R. China;
2. Experimental Center, Hebei Normal University, Shijiazhuang 050016, P. R. China

Received Date: 2 September 2011
Available Online: 12 December 2011
Fund Project: 国家自然科学基金(20773034, 21073053)资助项目 (20773034, 21073053)

Three rare earth complexes of [Ln(5-Cl-2MOBA)₃phen]₂ (Ln=Nd(1), Eu(2), Ho(3); 5-Cl- 2MOBA: 5-chloro-2-methoxybenzoate; phen: 1,10-phenanthroline) were synthesized and characterized by elemental analysis, thermogravimetry-differential thermogravimetry-differential scanning calorimetry (TG-DTG-DSC), infrared (IR) spectra, ultraviolet (UV) spectra, and molar conductance techniques. The fluorescence spectra showed that complex (2) emitted a characteristic fluorescence of the Eu³⁺ ions. The thermal properties are discussed by thermogravimetry - differential scanning calorimetry / Fourier transform infrared (TG-DSC/FTIR) techniques. And the three-dimensional IR accumulation spectra for the three complexes were also analyzed.
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