Synthesis,spectral, thermal,solid-state DC electrical conductivity and biological studies of Co(II) complexes with Schiff bases derived from 3-substituted-4-amino-5-hydrazino-1,2,4-triazole and substituted salicylaldehydes |
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Authors: | Prakash Gouda Avaji Sangamesh A Patil Prema S Badami |
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Institution: | (1) P.G. Department of Chemistry, Karnatak University, Dharwad, 580 003, India;(2) Department of Chemistry, Shri Sharanabasaveshwar College of Science, Gulbarga, 585 102, India |
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Abstract: | A series of Co(II) complexes have been synthesized with Schiff bases derived from 3-substituted-4-amino-5-hydrazino-1,2,4-triazole
and substituted salicylaldehydes. These complexes are insoluble in water but more soluble in DMF and DMSO. The complexes have
been characterized by elemental analyses, spectral (IR, UV–Vis, 1H-NMR, FAB-mass, fluorescence), magnetic, thermal, solid-state DC electrical conductivity and molar conductance data. The
molar conductivity values indicate that they are non-electrolytes. The elemental analyses of the complexes suggest a stoichiometry
of the type Co · L1–L16 · 2H2O. The complexes have been considered as semiconductors on the basis of the solid-state DC electrical conductivity data.
Fluorescence spectra of one Schiff base and its complex were investigated in various solvents and some of the Schiff bases
and their complexes were evaluated for their antimicrobial activities. |
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