title: On the influence of ionic strength on the equilibrium constant of copper-murexide interaction.
abstract: The concentration formation constant for the 1:1 complex between copper(II) and murexide in aqueous solutions has been measured as a function of ionic strength by spectrophotometry at 25 degrees . There is an inverse relationship between the K(c) values and ionic strength. The formation constant at infinite dilution was found to be 6.16 x 10(4). The distance of closest approach for the Cu(2+) ion was estimated as 4.3 +/- 0.3 A.
authors.affiliation: Department of Chemistry, Shiraz University, Shiraz, Iran.
authors.forename: F
authors.initials: F
authors.lastname: Famoori
authors.forename: S
authors.initials: S
authors.lastname: Haghgoo
authors.forename: M
authors.initials: M
authors.lastname: Shamsipur