关键词: 醚P, 四甘醇醛, 二肽, 甘氨酸, 多核络合物, 二甘肽, 席夫碱, 顺磁共振, 碳13核磁共振, 固体高分辨

Six novel rare earth complexes with noncyclic polyether- glycylglycine Schiff base (TAGLGL) have been synthesized with "step by step" method. They were confiremd by elemental analysis, IR, etc. and their formulas were established as [Ln3(TAGLGL)(NO3)7]·4H2O(Ln=La, Nd, Sm, Gd, Yb, Y). Owing to introducing a dipeptide bond with C=N and HN—C=O groups in the ligand, 1^H NMR and solid high resolution 13^C NMR with CPMAS and TOSS techniques and EPR spectra were used for elucidating the crystal field stregth, the symmetry in the obtained Gd(Ⅲ) complex andthe coordination of the donor atoms of the ligand with rare earth elements.

Key words: DIPEPTIDE, GLYCINE, POLYNUCLEAR COMPLEX, SCHIFF BASE, PARAMAGNETIC RESONANCE, CARBON-13 NMR SPECTROMETRY, RARE EARTH METAL COMPLEX, SPECTROMETRIC ANALYSIS