Synthesis And Characterization Of Mn (ii) And Zn (ii) Complexes Of Mixed Ligand 2 2-bipyridine And Citric Acid

Solvothermal synthesis of Zn (II) ion with mixed ligand 2,2’-Bipyridine and citric acid resulted in new Zn:Hcit:(bpy)1 (1) [Zn3(C6H5O7)2 (C10H8N2)3.(H2O)2 ].6H2O.(NH3)3 and Zn:Hcit:(bpy)2 (2) [Zn3 (C6H5O7)2 (C10H8N2)6] (Hcit=citric acid, bpy =2,2’-Bipyridine ) the first was obtained from zinc chloride, citric acid and 2,2-bipyridine in 3:2:3 molar ratio while the latter was obtained in 3:2:4 molar ratio. The coordination of the complex depends on the variations of pH value and metal to ligand ratio. The synthesis of Mn (II) complex Mn; Hcit:(bpy)2, [Mn3(C6H5O7)2 (C10H8N2)4.(H2O)2 ].12H2O was obtained from hydrated manganese salt, citric acid and 2,2’-bipyridine in 3:2:4 molar ratios respectively.rnThe complexes were characterized on the bases of elemental analysis, molar conductance, FT-IR and Uv-vis spectroscopy.

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