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Vol. 27 No. 11 (2015): Vol 27 Issue 11

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Synthesis, Characterization and Antimicrobial Activities of 1,2,4-Triazole-Coumarin Schiff Bases and their Mn(II), Co(II) Complexes

https://doi.org/10.14233/ajchem.2015.19010
G.S. Kalwania
Department of Chemistry, S.K. Government Post Graduate College, Sikar-332 001, India
Sunita Bajroliya
Department of Chemistry, S.K. Government Post Graduate College, Sikar-332 001, India

Corresponding Author(s) : G.S. Kalwania

gskalwania@gmail.com

Asian Journal of Chemistry, Vol. 27 No. 11 (2015): Vol 27 Issue 11

Abstract

Manganese(II) and cobalt(II) metal complexes have been synthesized with newly synthesized Schiff bases derived from 8-formyl-7-hydroxy-4-methylcoumarin and 3-substituted 4-amino-5-mercapto- 1,2,4-triazole by microwave irradiation method as well as conventional method. Reaction achieved by microwave irradiation technique, require drastically reduced reaction time and provide high yield with improved selectivity as compared to conventional method. The synthesized compounds were characterized by elemental analysis, spectral studies, magnetic measurements and thermal studies. The elemental analysis were clearly indicated that ML·2H2O type complexes have 1:1 stoichiometry (M = metal, L = ligand). All the Mn(II) and Co(II) complexes were stable at room temperature, non-hygroscopic, insoluble in water and all of them were polymeric in nature. The synthesized Schiff bases and their metal complexes screened for antimicrobial activities against selected bacteria and fungi.

Keywords

Microwave irradiation Schiff bases 1 2 4-Triazole Coumarin Antimicrobial Complexes
Kalwania, G., & Bajroliya, S. (2015). Synthesis, Characterization and Antimicrobial Activities of 1,2,4-Triazole-Coumarin Schiff Bases and their Mn(II), Co(II) Complexes. Asian Journal of Chemistry, 27(11), 3956–3960. https://doi.org/10.14233/ajchem.2015.19010
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