Investigation of formation constant of complex of a new synthesized tripodal ligand with Cu²⁺ using rank annihilation factor analysis in surfactant media

Abstract

ABSTRACT. The complex formation between a newly synthesized tripodal ligand and the cation Cu 2+ in water and surfactant media was studied spectrophotometrically using rank annihilation factor analysis (RAFA). According to molar ratio data the stoichiometry of complexation between the ligand and the cation Cu 2+ was 1:1. Formation constant of this complex was derived using RAFA on spectrophotometric data. The performance of the method has been evaluated by using synthetic data. Also concentration and spectral profiles of ligand and complex can be obtained by using the stability constant and appropriate equations. The effect of surfactants such as sodium dodecyl sulfate (SDS), cetyltrimethylammonium bromide (CTAB) and Triton X-100 on complex formation constant of Cu 2+ with the ligand was investigated.

New insights into the competition between antioxidant activities and pro-oxidant risks of rosmarinic acid

“…For the complexation reactions of metal ions with different ligands, this parameter commonly called the formation constant (K f ) is widely studied to evaluate the concentration of each existing form of the complexes in the solution. [79][80][81] The K f values 82 were calculated using equation (eqn (22)):…”

Formation constants and thermodynamic parameters of bivalent Co, Ni, Cu and Zn complexes with Schiff base ligand: Experimental and DFT calculations

“…They are very important in many fields such as environmental studies, medicinal, analytical and industrial chemistry [1][2][3][4]. Therefore complexation reactions of metal ions with different ligands have been widely studied [5][6][7].…”