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Synthesis and Spectral Studies of Mn(II) and Cu(II) Complexes with 4,5 - dihydroxy - 3- ( phpnyl azo) -2,7- disulfonic acid disodium naphthalene salt | ||
| Iraqi National Journal Of Chemistry | ||
| Article 1, Volume 0, Issue 36, 2014, Pages 745-753 | ||
| Authors | ||
| Sadiq J. Baqir; Thamer A. A. M. Al-Alwani; Jassem M.A. Al-Hassien | ||
| Abstract | ||
| Abstract The ligand , 4,5 - dihydroxy - 3- ( phpnyl azo) -2,7- disulfonic acid disodium naphthalene salt (HPASASN) was synthesized (by the reaction between aniline and chromotropic acid disodium salt and characterized . Its ionization constants pkas were determined. Synthesis and spectroscopic investigation of its complexes with Mn(II) and Cu(II) in aqueous solutions complexes revealed the sole formation of the (1:2) (metal : ligand) complexes . Spectral and magnetic studies of the isolated Mn(II) and Cu(II) complexes indicate octahedral and tetrahedral coordination via the N atom of the azo group and the O atom of the hydroxyl group for these complexes sequentially . The molar conductivity of the complexes was determind in an alcoholic solutions . | ||
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