Journal :   Asian Journal of Research in Chemistry

Volume No. :   4

Issue No. :  3

Year :  2011

Pages :   491-499

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Manganese (II, III, IV) Complexes of N-(2-hydroxysalicyliden-1-yl) methylenebenzoylhydrazide; Synthesis and Spectral Studies



Address:   Nirmal K. Kar*
Department of Chemistry, Tripura University, Suryamaninagar-799130, Tripura, India
*Corresponding Author
DOI No:

ABSTRACT:
Reaction of H2L [N-(2-hydroxysalicyliden-1-yl)methylenebenzoylhydrazide] with manganese(II) acetate tetrahydrate and manganese(III) acetate dihydrate in methanol followed by addition of methanolic KOH results in [Mn(L)2] and [Mn(L)(OH)(H2O)]. Further, complexes of the composition [Mn(L)(A)][where A = pyridine(py), 2-picoline(2-pic), 3-picoline(3-pic) and 4-picoline(4-pic)] were synthesized from the reaction of H2L, Mn(OAc)2.4H2O, KOH and pyridine bases. The structures of the complexes were confirmed on the basis of elemental analysis, molar conductivity, magnetic moment, FT-IR, UV-Visible and ESR spectra. The molar conductance values in DMF (N,N-dimethylformamide) suggest non-electrolytic nature of the complexes. Electronic spectral studies suggest 6-coordinate and 4-coordinate metal ions in these complexes. IR spectra reveal that H2L coordinates in enol-form in its complexes.
KEYWORDS:
Manganese (II,III,IV) complexes, N-(2-hydroxysalicyliden-1-yl)methyleneben- zoylhydrazide, pyridine bases.
Cite:
Nirmal K. Kar. Manganese (II, III, IV) Complexes of N-(2-hydroxysalicyliden-1-yl) methylenebenzoylhydrazide; Synthesis and Spectral Studies. Asian J. Research Chem. 4(3): March 2011; Page 491-499.
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