Lanthanide amino acid Schiff base complexes:synthesis,spectroscopic characterization,physical proper

来源 :Journal of Rare Earths | 被引量 : 0次 | 上传用户:xubin761
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Complexes of La(Ⅲ),Nd(Ⅲ),Gd(Ⅲ),Sm(Ⅲ),and Ce(Ⅳ) were synthesized with Schiff base [(3,5-di-tert-butyl-2-hydroxybenzyl) amino] acetic acid(H 3 L).The ligand and its complexes were synthesized and characterized based on the following analysis:elemental analyses,FAB-mass,molar conductance measurements,magnetic measurement,UV-visible,IR,and NMR spectral studies.The spectral data revealed that the ligand acted as a neutral tridentate coordinating to metal ion through ONO donor sequence.Thermal degradation studies of the ligand and its complexes showed that the previous lanthanide complexes were more thermally stable than the ligand itself.The Schiff base and its complexes were screened for their antibacterial(Escherichia coli,Staphylococcus aureus) and antifungal(Aspergillus flavus and Candida Albicans). Complexes of La (Ⅲ), Nd (Ⅲ), Gd (Ⅲ), Sm (Ⅲ), and Ce (Ⅳ) were synthesized with Schiff base [(3,5-di-tert- butyl-2-hydroxybenzyl) amino] acetic acid (H3L). The ligand and its complexes were synthesized and characterized based on the following analysis: elemental analyzes, FAB-mass, molar conductance measurements, magnetic measurement, UV-visible, IR, and NMR spectral studies. data revealed that the ligand acted as a neutral tridentate coordinating to metal ion through ONO donor sequence. heat degradation studies of the ligand and its complexes showed that the previous lanthanide complexes were more thermally stable than the ligand itself. The Schiff base and its complexes were screened for their antibacterial (Escherichia coli, Staphylococcus aureus) and antifungal (Aspergillus flavus and Candida Albicans).
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