Association of Nitrophenols to Sodium Dodecylsulfate Micelles

Micellar Binding of α-Diimine–Chromium(III) Complexes (Cr(NN)3+3) to Sodium Dodecyl Sulfate (SDS)

“…[7] to simulate the titration curve with a set of parameters, with a random noise of about 2% of error added. Second, the simulated curves were fitted by the Marquardt nonlinear least-squares algorithm, where D , DM , and n were fixed.…”

“…Previous papers (2)(3)(4)(5) have dealt with the photophysics and mechanistic aspects of polypyridine complexes of transition metals in the presence of phenols. We also studied the interaction between the tris(2,2Ј-bipyridine)ruthenium(II) (Ru(bpy) 3 2ϩ ) excited state and phenols as luminescence quenchers in cationic micelles of cetyltrimethylammonium chloride (CTAC) (6) or anionic micelles of sodium dodecyl sulfate (SDS) (7). The binding or association constant of the phenols to the micelles was determined in each system.…”

Interaction of UO22+ with Sodium Dodecyl Sulfate Micelles: Association of Phenols to Micelles through Fluorescence Quenching Data

“…However, by their nature, fluorescent aromatic molecules are limited to provide information resulting in diffusional processes that occur within their excited singlet state lifetimes (in the ns time scales). The excited-state properties of polypyridyl complexes of ruthenium(II) (18) and chromium(III) (19,27) have also been studied in time-resolved fluorescence quenching as well as other probes near the ms time domain. However, the excited state of these complexes is sensitive to oxygen.…”

“…At present, several studies have been done using different luminescence probes to determine the association constant of organic compounds to micellar systems (17)(18)(19). Nevertheless, within the photochemistry and photophysics of the uranyl ion in micellar media, most of the works deal only with the UO 2+ 2 -micelle interactions (8)(9)(10)(11).…”

The Effect of Adsorbed Sodium Dodecylsulfate at the Alumina–Water Interface on the Luminescence Quenching of Tris(2,2′-bipyridine) ruthenium(II) by Nitrophenols

“…In this case, the luminescent probe can be used to measure the quencher concentration in the micellar pseudophase. From this point of view, we studied the luminescence quenching of Ru(bpy) 2+ 3 by nitrophenols (NO 2 PhOHs) at pH 2 and could establish the type of association process of the quenchers to SDS micelles and the micellar quenching mechanism (19).…”