UV-Vis Spectroscopic Study on a New Synthesized 4-Hydroxy-N-[(E)-(2-hydroxyphenyl)methylidene]benzohydrazide as Calorimetric Reagent For Mg2+ Ions

Abdassalam A. A. Tameem (1) , Abdussalam S. Mohamed (2)
(1) Dr., Libya ,
(2) , Libya

Abstract

This study is concerned about the study of the chromogenic properties of hydrazone compound, i.e. 4-hydroxy-N-[(E)-(2-hydroxyphenyl)-methylidene]benzo-hydrazide towards magnesium ion recognition. The hydrazone compound was synthesized and characterized by FT-IR and NMR spectroscopy. The complexation ability of the studied ligand towards Mg2+ was investigated using UV-Vis spectroscopy. Experimental parameters that affect the ligand-metal ion complexation such as effect of solvent, standing time, metal concentration and ligand concentration were investigated. Results show that HNHMB is preferentially to bind with Mg2+ in ethanol. The addition of Mg2+ to the ligand in ethanol gives rise to a large hyerchromic shift resulting in a colour darkness. From the linear regression analysis, Beer’s law was obeyed in at least 0.1–1.4× 10-4 M. The complex showed maximum absorptions (λmax) at 396 nm.

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Authors

Abdassalam A. A. Tameem
salamtameem@yahoo.com (Primary Contact)
Abdussalam S. Mohamed
Tameem, A. A. A. ., & Mohamed, A. S. . (2022). UV-Vis Spectroscopic Study on a New Synthesized 4-Hydroxy-N-[(E)-(2-hydroxyphenyl)methylidene]benzohydrazide as Calorimetric Reagent For Mg2+ Ions. Journal of Pure & Applied Sciences, 21(1), 83–86. https://doi.org/10.51984/jopas.v21i1.1702

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