Synthesis and Characterization of Manganese (II), Cobalt (II), Complexes of New Polydentate Ligands Containing 1,8-Naphthydridine Moiety

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Synthesis and Characterization of Manganese (II), Cobalt (II), Complexes of New Polydentate Ligands Containing 1,8-Naphthydridine Moiety

S. J. Swamy^1*, S. Raveender Reddy², A. Dharma Reddy³ and K. Bhaskar⁴

¹Department of Chemistry, Kakatiya University, Warangal 506 009 (India).

²Department of Chemistry, L.B.College, (Kakatiya University) Warangal (India).

³Research Centre, Department of Chemistry CKM College, (Kakatiya University) Warangal - 506 006 (India).

⁴Department of chemistry, Osmania University, Hyderabad (India).

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ABSTRACT:

The substituted 1,8-naphthyridines, 2-hydroxy-1,8-naphthyridine-3-carboxylic acid hydrazide (HNch) and 2-hydroxy-1,8-naphthyridine-3-carboxylic acid 0-hydroxybenzylidene hydrazide (HNCHBh) react with acetates of Mn(II), Co(II) metal ions to yield complexes of definite composition. The complexes have been characterized by elemental analysis, thermal, conductance, magnetic studies and IR, electronic, NMR and ESR spectral data. The HNCh and HNCHBh form the complexes of formula [M(HNCh)2] and [M(HNCHBh) (H2O)2] respectively.

KEYWORDS:

Mn(II); Co(II); HNCh; HNCHBh