Potentiometric, conductimetric, spectrometric, thermogravimetric and magnetic studies of lanthanum complexes with some symmetric 1,5-diaryl-3-cyanoformazans
作者:N.T. Abdel-Ghani、O.E. Sherif
DOI:10.1016/0040-6031(89)87172-2
日期:1989.12
obtain basic knowledge on the complexes of La(III) with some symmetric 1,5-diaryl-3-cyanoformazans. The ionization constants of the formazans as well as the formation constants of their lanthanum complexes were studied potentiometrically m solution by Sarin's method. The La(III) complexes formed were separated and their structures were elucidated by elemental analysis, IR, NMR spectroscopy, thermogravimetry
摘要 应用电位、电导、红外、核磁共振、热重和磁化率等多种实验技术来获得La(III)与一些对称1,5-二芳基-3-氰基甲臜络合物的基础知识。甲臜的电离常数及其镧配合物的形成常数通过沙林法在溶液中进行电位测定研究。通过元素分析、红外光谱、核磁共振光谱、热重 (TG)、摩尔电导和磁化率测量,分离出形成的 La(III) 配合物并阐明其结构。