Formation of binuclear cationic complexes of nickel(II) with 8-quinolinol.
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概要
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In order to clarify the reason why the normal 1:2 complex and/or its self-adducts are not extracted, but the ion-pair of the dimer complex is, when a weakly acidic nickel(II) solution containing an anion X- such as perchlorate is shaken with an 8-quinolinol (Hql) solution of organic solvents, Ni-Hql-X (X: ClO4, I and SCN) complexes were formed in ethanol solutions. Their composition, thermal analyses and IR spectra are discussed in connection with their molecular structures. Each Ni-Hql-X complex consists of a binuclear complex cation, [ H3(Niql3)2]+ and X-. The binuclear cationic complex, [H3(Niql3)2]+, in which two Niql3- are joined by three very strong hydrogen bonds, is so stable in solution and solid state that its ion-pair complex, [H3(Niql3)2]+X-, can be extracted into organic solvents and precipitated in aqueous solutions.
- 社団法人 日本分析化学会の論文
社団法人 日本分析化学会 | 論文
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