Synthesis and characterization of rare earth complexes with Phthalaldehyde-lysine Schiff base |
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| Authors: | Meixian Hu Ning Li Kemin Yao |
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| Institution: | (1) Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, China;(2) Department of Chemistry, Zhejiang University, Hangzhou, 310027, China |
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| Abstract: | Ten new rare earth complexes with Schiff base (HL) derived from phthalaldehyde with two-CHO groups and lysine, which has unsymmetrical
α-and ε--NH2 groups, were synthesized and characterized by elemental analysis, TG-DTA analysis, UV-Vis, IR, and 1H NMR spectra. They were confirmed to be as LnL2(NO3)·4H2O (Ln=La, Pr, Nd, Sm, Y) and LnL2(NO3)·3H2O (Ln=Gd, Tb, Dy, Er, Yb), respectively. Furthermore, their coordination mechanism, spectral properties and probable molecular
structures were also discussed.
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Translated from Journal of Zhejiang University (Science Edition), 2005, 32 (5) (in Chinese) |
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| Keywords: | phthalaldehyde lysine rare earth metal Schiff bases complexation |
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