稀土冠醚络合物的研究——Ⅰ.镧系高氯酸盐与二苯并—18—冠—6的络合物

稀土冠醚络合物的研究——Ⅰ.镧系高氯酸盐与二苯并—18—冠—6的络合物 STUDIES ON RARE EARTH COMPLEXES OF CROWN ETHER 肖文锦 Xiao Wenjin Wang Jingqiu Wan Jie Yang Zhikuan Qiu Xinfa Lou Runhuo first-author 王静秋 万婕 杨智宽 邱新发 娄润和 本工作合成了镧系高氯酸盐与二苯并—18—冠—6的络合物,进行了元素分析、热稳定性、光谱（红外、紫外）、溶解度和电导的测定。得到组成为Ln（ClO 4 ）s·L·H 2 O的固体络合物。（Ln=La,Ce,Pr,Nd,Sm;L=二苯并—18—冠—6）。其热稳定性较好。在乙腈溶液中的电导数据证明,所有络合物都属1∶3型。讨论了在几种有机溶剂中络合物的溶解度。 The complexes of Lanthanide perchlorates withdibenzo-18-crown-6 ether have been synthesized. All of the complexes Ln（ClO 4 ） 3 ·L·H 2 O（where Ln=La, Ce, Pr, Nd, Sm, L=dibenzo 18-C-6）were formed in the solid state. Their decomposition temperatures appeared above 300℃. The infrared spectra of free dibenzo-18-C-6 exhibited γ（e-o）band at 1255-1228 cm -1 . Upon complexes formation these bands were shifted to lower energy by 10-14 cm -1 . In acetonitrile solution conductivity data indicated the all complexes behaved as 1:3 electrolytes. Discussed the solubility of complexes in several organic solvents. 1981-01-01 2021-04-01 1