稀土不对称双氮杂冠醚配合物的合成与表征

PREPARATION AND CHARACTERIZATION OF RARE EARTH(Ⅲ)COMPLEXES WITH ASYMMETRIC DIAZA CROWN ETHER

合成了一个不对称双氮杂冠醚配体9，14-二乙基-三氧杂-10，13-二氮杂十五烷（L），在乙腈中合成了4个轻稀土硝酸盐配合物．在丙酮介质中合成出7个镧系硫氨酸盐配合物．通过元素分析确定其组成为Ln（NO3）3·L（Ln=La，Ce），Ln（NO3）3·L·H2O（Ln=Pr，Nd），Ln（SCN）3·L·H2O（Ln=La，Pr，Nd,Sm,Eu，Ho，Er）．通过UV，IR，1HNMR的测试对配合物进行了表征．

Four new complexes of light lanthanide(Ⅲ) nitrates, and seven new complexes of lanthanide(Ⅲ) isothiocyanates with a asymmetric diaza crown ether, 9, 14-diethyl-1, 4,7-trioxa-10, 13-diazacyclopentadecane, were prepared in acetonitrile and acetone respectively.These new complexes having formula of Ln(NO3)3. L(Ln=La, Ce), Ln(NO3)3·L·H2O(Ln=Pr, Nd) and Ln(SCN)3·L·H2O(Ln=La, Pr, Nd, Sm, Eu, Ho, Er) were characterized by means of elemental analysis and IR spectra. Their physical and chemical properties were also studied with conductivity measurements, UV spectra and 1HNMR technique.