Structural Elucidation of Newly Synthesized Schiff Base Zr(IV) and Ce(IV) Chelates Using Physicochemical Methods

The tetradentate Schiff base chelates of Zr(IV) and Ce(IV) ions were synthesized by the reaction of the Schiff base which formed by the refluxing of 2-hydroxyacetophenone and 1,6-diaminohexane in ethanol solution with the mentioned metal salts. The structures of the Zr(IV) and Ce(IV) chelates were identified by several physiochemical techniques. The CHN elemental analyses showed the formation of chelates in 1:1 [M:L] ratio. The molar conductance values revealed that the synthesized chelates are nonelectrolyte in nature. The thermogravimetric analysis was performed for Ce(IV) chelate to satisfy the presence of hydrated and coordinated water molecules in the chelate. The spectral data suggested the existing of an octahedral geometrical structure for the chelates under investigation.