Synthesis and Characterization of Quaternary Complex of Sm-CH3C(CH2OH)2COOH-Phen
来源期刊：JOURNAL OF RARE EARTHS2005年第3期
论文作者：Huang Xiangan Wang Lianjun Xi Peng
Key words：2,2-dihydroxymethyl propionic acid; quaternary complex; fluorescence; rare earths;
Abstract: A new quaternary complex with 2,2-dihydroxymethyl propionic acid and 1,10-phenanthroline, Sm(CH3C(CH2OH)2COO)(NO3)2(phen), was synthesized in ethanol solution and characterized by elemental analysis, IR and solid-state 13C NMR. The result of molar electrolytic conductivity of the complex indicates that it is non-electrolyte. Solution and thermal properties of the complex further verifies that the complex and ligant are different. In addition, the analytical results also imply that the two hydroxyl groups of 2,2-dihydroxymethyl propionic acid are not involved in the coordinate reaction. This will provide a new way for producing new multifunctional polymer materials with excellent fluorescent property. The fluorescence spectra of the complex were also studied. The main fluorescence emission peak of the complex appeared at 555, 604 and 646 nm. These fluorescent emission peaks correspond to transitions from 4G5/2 to 6H5/2, 6H7/2 and 6H9/2 energy levels of samarium(Ⅲ) ion, respectively. The most intense peak is at 646 nm, which lies in the range of absorption wavelength of chlorophyll a and chlorophyll b (600～680 nm), and it is beneficial to the crops to grow up.
Huang Xiangan1，Wang Lianjun1，Xi Peng1
(1.State Key Laboratory of Modification for Chemical Fiber and Polymer Materials, Donghua University, Shanghai 200051, China)
Abstract:A new quaternary complex with 2,2-dihydroxymethyl propionic acid and 1,10-phenanthroline, Sm(CH3C(CH2OH)2COO)(NO3)2(phen), was synthesized in ethanol solution and characterized by elemental analysis, IR and solid-state 13C NMR. The result of molar electrolytic conductivity of the complex indicates that it is non-electrolyte. Solution and thermal properties of the complex further verifies that the complex and ligant are different. In addition, the analytical results also imply that the two hydroxyl groups of 2,2-dihydroxymethyl propionic acid are not involved in the coordinate reaction. This will provide a new way for producing new multifunctional polymer materials with excellent fluorescent property. The fluorescence spectra of the complex were also studied. The main fluorescence emission peak of the complex appeared at 555, 604 and 646 nm. These fluorescent emission peaks correspond to transitions from 4G5/2 to 6H5/2, 6H7/2 and 6H9/2 energy levels of samarium(Ⅲ) ion, respectively. The most intense peak is at 646 nm, which lies in the range of absorption wavelength of chlorophyll a and chlorophyll b (600～680 nm), and it is beneficial to the crops to grow up.
Key words:2,2-dihydroxymethyl propionic acid; quaternary complex; fluorescence; rare earths;
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