Spectrophotometric study of some Mn(II) ternary complexes and their analytical applications |
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Authors: | Rafat Mohamad El-Khatib and Lobna Abdel-Mohsen Ebaid Nassr |
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Institution: | (1) Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt; |
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Abstract: | Abstract New ternary complexes of Mn(II) with py, bipy, and terpy as primary ligand (L1) and 2′,4′,5′,7′-tetraiodofluorescein (I4FlCOOH) as secondary ligand (L2) were prepared. The stoichiometry for these complexes was found to be Mn(II):L1:L2 = 1:2:1, and the complex formula proposed is Mn(L1)2(I4FlCOO)]+. The effect of substituent groups of L2 and the nitrogen atoms of L1 on complex formation with Mn(II) was studied. Moreover, the interference of some cations and anions in the determination
of Mn(II) by this method was investigated and the interferences of Cu(II) and Fe(III) with Mn(II) in their corresponding alloys
were considered. A simple, rapid, and sensitive spectrophotometric method for determination of Mn(II) in its salts and Mn
in its alloys is suggested. |
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