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Research Paper | Chemistry | India | Volume 12 Issue 1, January 2023 | Rating: 4.8 / 10

Studies of Zn (II) and Cd (II) Metal Complexes with New Schiff?s Base N?-(1-(4-hydroxy-2oxo-2H-Chromen-3-yl) Ethylidene) Benzohydride

V. V. Kodgire ^[3] | G. B. Pande ^[2] | M. R. Deshpande ^[2]

Abstract: Zn (II) and Cd (II) metal complexes of new Schiff?s base N?-(1-(4-hydroxy-2oxo-2H-Chromen-3yl)ethylidene) benzohydrideare synthesized by various methods. In present work they are synthesized by reacting methanolic solution of 3-acetyl-4-hydroxy-2Hchromen-2-one and benzohydride with metal chlorides followed by precipitating the complexes by addition of alcoholic ammonia. The metal to ligand ratio for Zinc & Cadmium complexes is 1:1 suggesting monomeric nature. Zn (II) and Cd (II) metal complexes synthesized are coloured and stable to air and moisture. Most of them decompose at high temperature.They are insoluble in water, common polar and non-polar solvents. The complexes are sparingly soluble in methanol, ethanol, chloroform, dimethylformamide (DMF), and dimethylsulphoxide (DMSO). The complexes were synthesized and characterized by elemental analysis, IR, electronic spectra, molar conductance, TGA and powder XRD.

Keywords: 3-acetyl-4-hydroxy-2H-chromen-2-one, benzohydrazide, transition metals Zn and Cd

Edition: Volume 12 Issue 1, January 2023,

Pages: 284 - 289