Acta Chimica Sinica ›› 1993, Vol. 51 ›› Issue (3): 251-256. Previous Articles     Next Articles

Original Articles

溶液中某些镉(II)的混合配体配合物的稳定性研究: 关于混合配体配合物相对稳定性定量表征的讨论

张锋;刘祁涛   

  1. 辽宁大学化学系
  • 发布日期:1993-03-15

Study on the fornation and stability of ternary complexes of cadmium(II) with vitamin D3 and some N, N-bidentate ligands in solution: A discussion on quantitative expression of the relative stabilities of ternary complexes

ZHANG FENG;LIU QITAO   

  • Published:1993-03-15

The formation and stability of the ternary complexes of Cd(II) with vitamin D3 and some N,N-bidentate ligands (ethylenediamine or 2,2'-bipyridyl were studied by potentiometric pH titration in 70% (vol./vol.) ethanol-water solution at 37?C and 0.10 ionic strength (KNO3). Both systems form stable ternary complexes and the Dlog K values are abnormally high (+1.06 and 1.54, resp.).

Key words: STABILITY, POTENTIOMETRIC TITRATION, STABILITY CONSTANT, TERNARY COMPLEX, ETHANEDIAMINE, BIPYRIDINE, MIXED LIGAND COMPLEX, VITAMIN D3, CADMIUM COMPLEX

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