title: Spectrophotometric study of the alkali metal-murexide complexes in some non-aqueous solutions.
abstract: The complexes of murexide with alkali-metal cations have been studied spectrophotometrically in methanol, dimethylformamide and dimethylsulphoxide media at 25 degrees . The stoichiometry of the complexes was found to be 1:1. The formation constants of the complexes were determined, and found to decrease in the order Na(+) > K(+) > Rb(+) approximately Li(+) for all solvents studied. The complex formation constants varied inversely with the Gutmann donicity of the solvents.
authors.affiliation: Department of Chemistry, Shiraz University, Shiraz, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Shamsipur
authors.forename: S
authors.initials: S
authors.lastname: Madaeni
authors.forename: S
authors.initials: S
authors.lastname: Kashanian