Abstract
SYNTHESIS AND CHARACTERIZATION OF [N4] MACROCYCLIC LIGAND[L] AND ITS Ni(II) AND Cu(II) COMPLEXES

Swati Agrawal, Usha Bansal* and Samta Goyal

ABSTRACT

New Macrocyclic [N4] ligand [L] was synthesized by using glyoxal and carbahydrazide. The structure of ligand was characterized using spectroscopic techniques. Ni(II) and Cu(II) complexes of Macrocyclic [N4] ligand [L] were synthesized and characterized. The novel synthesized ligand coordinates to metal center through four azomethine nitrogen and the two axial positions are occupied by anions. The synthesized complexes are non- electrolytic in nature and are of type [ML X2]; (X= Cl–, NO3–,). The synthesized complexes are thermally stable at room temperature. The geometry and the stoichiometry of the complexes are well established by the various analytical and spectroscopic techniques. Ni(II) complexes have octahedral while Cu(II) complexes have tetragonal geometry. The proposed structures are well supported by spectroscopic data.

Keywords: .


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