CAJ | 학술논문

合成了直链醚-组氨酸Schiff碱（四甘醇醛缩双组氨酸Schiff碱）及其稀土配合物，以元素分析、红外光谱、热重、磁化率等确定配合物组成为Ln3(H2L)2(NO3)9（Ln=La，Nd，Gd，Er，Yb；L=C20H26N6O7）.采用交叉极化结合魔角旋转技术（CP/MAS）和消除旋转边带技术（TOSS），获得固体高分辨13CNMR谱，见到—COO-的13C谱峰分裂等新信息.结合液体1HNMR谱等，对L-组氨酸中咪唑基的配位进行了研究.以EPR波谱探讨了配合物的晶体场强等特性.观察到Er配合物对超氧阴离子自由基的清除有一定效果.
합성료직련미-조안산Schiff감（사감순철축쌍조안산Schiff감）급기희토배합물，이원소분석、홍외광보、열중、자화솔등학정배합물조성위Ln3(H2L)2(NO3)9（Ln=La，Nd，Gd，Er，Yb；L=C20H26N6O7）.채용교차겁화결합마각선전기술（CP/MAS）화소제선전변대기술（TOSS），획득고체고분변13CNMR보，견도—COO-적13C보봉분렬등신신식.결합액체1HNMR보등，대L-조안산중미서기적배위진행료연구.이EPR파보탐토료배합물적정체장강등특성.관찰도Er배합물대초양음리자자유기적청제유일정효과.
Five lanthanide complexes with tetraglycol aldehyde bis-histidineSchiff base were synthesized and characterized by elemental analysis， IR spectrometry， TG-DTA and magnetic susceptibility as Ln3(H2L)2(NO3)9（Ln=La，Nd，Gd，Er，Yb; L=C20H26N6O7）. The obtained complexes were investigated in detail by high resolution solid state（HRSS）13C NMR using cross polarization，magic angle spinning（CP/MAS）and total suppression of sidebands（TOSS） techniques. Some new information about the splitting peaks of 13C for —COO- group are given. On the basis of them，the coordination of imidazole group was discussed. The crystal field strength of the Gd(Ⅲ) complex was investigated by EPR spectrometry. The experimental results show that Er3+ complex has some biological activities and could dispose of O.-2.