Crystal structure, spectroscopic and magnetic properties, and antimicrobial activities of cobalt(II) 2-methylthionicotinate complexes with N-heterocyclic ligands |
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Authors: | Peter Segl’a Jozef Miklovič Dušan Mikloš Ján Titiš Radovan Herchel Ján Moncol Barbora Kaliňáková Daniela Hudecová Viera Mrázová Tadeusz Lis Milan Melník |
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Institution: | Peter Segl’a, Jozef Miklovič, Dušan Mikloš, Ján Titiš, Radovan Herchel, Ján Moncol, Barbora Kaliňáková, Daniela Hudecová, Viera Mrázová, Tadeusz Lis and Milan Melník |
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Abstract: | Synthesis and characterization of 10 new 2-methylthionicotinate (2-MeSnic) Co(II) complexes, namely, Co(2-MeSnic)2L2(H2O)2] · nH2O (L is N,N-diethylnicotinamide—Et2nia, ethylnicotinate—Etnic, nicotinamide—nia, isonicotinamide—isonia, N-methylnicotinamide—N-Menia, furo3,2-c]pyridine—fpy, 2,3-dimethylfuro3,2-c]pyridine—Me2fpy or benzo4,5]furo3,2-c]pyridine—Bfp; n is 0, 1 or 2) as well as Co(2-MeSnic)2L2] (L is ronicol—ron or 2-methylfuro3,2-c]pyridine—Mefpy), are reported. The characterizations were based on physico-chemical
and spectroscopic methods. The crystal structure of one of the complexes has been determined. In the molecular complex Co(2-MeSnic)2(Me2fpy)2(H2O)2], the Co(II) central atom, located at a symmetry centre, is octahedrally coordinated by an oxygen atom of the unidentate
2-MeSnic carboxyl group, the nitrogen atom of the pyridine ring of Me2fpy, a water molecule and the corresponding centrosymmetrically located atoms. Also, biological activity of the complexes
against various strains of bacteria and filamentous fungi has been investigated. It is concluded that by complexation of these
nicotinate derivatives their biological activities are elevated.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
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