SYNTHESIS AND STRUCTURE OF COMPLEXES BY CO(II) AND NI(II) WITH PYRIDINOYLHYDRAZONES OF PYRUVIC ACID
| Autor: | A. V. Pulia, I. I. Seifullina, N. V. Shmatkova |
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| Jazyk: | English<br />Russian<br />Ukrainian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 16, Iss 4, Pp 32-41 (2015) |
| Druh dokumentu: | article |
| ISSN: | 2304-0947 2414-5963 |
| DOI: | 10.18524/2304-0947.2011.4.37977 |
| Popis: | The interaction of MX2 (M = Co2+, Ni2+; X = Cl-, CH3COO-, NO3-) with nicotinoyl- and isonicotinoyhydrazones of pyruvic acid (H2Npv, H2Ipv) in metanol has been studied. Methods are developed and 8 new complexes are first synthesized: — with Co2+, Ni2+ chlorides: [NiCl(HNpv)(H2O)2] (I), [NiCl(HIpv)(H2O)2] (II), [CoCl(HNpv) (H2O)2] (III), [CoCl(HIpv)(H2O)2] (IV); — with Co2+, Ni2+ acetates and nitrates: [Ni(HNpv)2]2CH3OH (V), [Ni(HIpv)2]2CH3OH (VI), [Co(HNpv)2]CH3OH (VII), [Co(HIpv)2]CH3OH (VIII). Complexes have been characterized by a set of methods element analysis, thermogravimetry, IR and diffuse reflection spectroscopy, magnetic susceptibilites measurings. The scheme of their structure has been proposed. It was established that in all complexes was implemented the same monodeproto- natid ketone form HLpv- with coordination through the azometine nitrogen atom and carbonilic and carboxylic groups oxygens, without the participation of the pyridine nitrogen. |
| Databáze: | Directory of Open Access Journals |
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