稀土冠醚配合物在水溶液中的稳定性研究  

Study on the Stability of Rare Earth Coordination Compounds with Crown Ether in Aqueous Solution

作　　者：李春英[1] 杨秋青[2] 张建军[2] 

机构地区：[1]河北师大化学系 [2]河北师大实验中心

出　　处：《河北师范大学学报（自然科学版）》1993年第3期48-50,共3页Journal of Hebei Normal University：Natural Science

摘　　要：该文研究了三价稀土离子La^(3+)与12-冠-4、15-冠-5和18-冠-6配合物在水溶液中的稳定性,用核磁共振法测定了其稳定常数,并获得了稳定常数的变化规律.In this paper the stability of La^(3+) cation coordination compounds with 12-C-4、15-C-5 and 18-C-6 in aqueous solution was studied.The stability constants of La^(3+) cation coordination compounds with 12-C-4,15-C-5and 18-C-6 in aqueous solution were determined by NMR method.It is found that coordination capability of 15-C-5 to La^(3+)cation is stronger than that of 12-C-4and 18-C-6.

关 键 词：稀土 冠醚 配合物 稳定常数 水溶液 稳定性 

分 类 号：O614.33[理学—无机化学]