ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

Complex Formation Capabilities of Pyrogallol Based Dipodal Ligand MEP with Trivalent Metal ions: A Potentiometric and Spectrophotometric Investigation

Pramod Kumar1, Amardeep1, Meenakshi1, Vijay Dangi1*, Jitender2, And Brahamdutt Arya3,4*

DOI : http://dx.doi.org/10.13005/ojc/400336


Abstract:

This research demonstrated and analyzed the complexation capabilities of the dipodal chelator N1,N3-bis(2-((E)-2,3,4-trihydroxybenzylidene)amino)ethyl)malonamide (MEP) with heavy metal ions, viz., Al3+, Fe3+, and Cr3+, by engaging potentiometric and spectrophotometric methods. The whole experiment was carried out in a pH-dependent manner in a highly aqueous medium with a pH range of 2 to 11. The potentiometric and spectrophotometric results suggest the highest binding affinity of the chelator MEP with Al3+ metal ions among all three metal ions under study, with a stability constant value of log β = 27.13.

Keywords:

Association constant; Complexation; Potentiometry; Pyrogallol; Spectrophotometric

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