Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Complexations of New Pyridylazo Ligands with Ni(II), Zn(II), and Cd(II)
Hu HuangFumiaki KaiChiemi UragamiMasaaki HirohataHiroaki ChikushiHisae YanakaMayumi HondaMasaaki Nakamura
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1991 Volume 64 Issue 6 Pages 1982-1984

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Abstract

New ligands, 1-(3,5-dichloro-2-pyridyl-azo)-2-naphthol, 2-(3,5-dichloro-2-pyridyl-azo)-5-(dimethylamino) phenol, and 2-(3,5-dichloro-2-pyridyl-azo)-5-(dimethylamino)benzoic acid, were synthesized. Changes in the reduction potentials and electronic spectra of the ligands upon complexation with Ni(II), Zn(II), and Cd(II) were studied. The dissociation constants of the ligands and the stability constants of their metal(II) complexes are discussed.

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