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

Abstract

The complex formation between a newly synthesized tripodal ligand and the cation Cu²⁺ 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 Cu²⁺ 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 Cu²⁺ with the ligand was investigated.

KEY WORDS: RAFA, Tripodal ligand, Complex formation constant, Surfactant

Bull. Chem. Soc. Ethiop. 2014, 28(1), 1-8.

DOI: http://dx.doi.org/10.4314/bcse.v28i1.1