Browsing by Author "Mohamad Nur Azshary Mohd Salleh"

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    UV-Vis Spectroscopic Studies of Diamide Ligands as Potential Tools for Anion Sensor
    (EDUCATUM Journal of Science, Mathematics and Technology (EJSMT), 2016) Maisara Abdul Kadir; Mohamad Nur Azshary Mohd Salleh; Nur Syazwani Kassim
    This paper describes the results from ultraviolet (UV) spectroscopic studies of diamide ligands namely N,N’-2,6- bis(3-pyridylmethyl)pyridine dicarboxamide (L5) and N,N’-2,6-bis(4-pyridylmethyl)pyridine dicarboxamide (L6) towards chloride, nitrate and chromate anions in solution. The responses of the ligands towards anions are monitored by the changes of the absorbance in the UV spectra. The time interval experiments were conducted from 0 to 3 hours, resulted to the rise of the absorbance of the ligands. The change in the absorbance value is attributed to the increase of interaction between the ligands and anions that is proportional with time. In contrast to the ligands, the absorbance of anion is decreased showing the reduction of anion concentration in the solution. Rapid UV response indicates the sensitivity of these ligands towards anions which at the same time showing promising potential as sensitive anion sensor.