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dc.creatorRusso, Marcos Guillermo-
dc.creatorVega Hissi, Esteban Gabriel-
dc.creatorRizzi, Alberto Claudio-
dc.creatorBrondino, Carlos Dante-
dc.creatorSalinas Ibañez, Angel G.-
dc.creatorVega, Alba Edith-
dc.creatorSilva, Humberto de Jesus-
dc.creatorMercader, Roberto Carlos-
dc.creatorNarda, Griselda Edith-
dc.date2016-05-24T18:53:07Z-
dc.date2016-05-24T18:53:07Z-
dc.date2014-01-
dc.date2016-05-16T20:06:45Z-
dc.date.accessioned2019-04-29T15:52:27Z-
dc.date.available2019-04-29T15:52:27Z-
dc.date.issued2014-01-
dc.identifierRusso, Marcos Guillermo; Vega Hissi, Esteban Gabriel; Rizzi, Alberto Claudio; Brondino, Carlos Dante; Salinas Ibañez, Angel G.; et al.; Synthesis, physicochemical characterization, DFT calculation and biological activities of Fe(III) and Co(II)–omeprazole complexes. Potential application in the Helicobacter pylori eradication; Elsevier; Journal of Molecular Structure; 1061; 1-2014; 5-13-
dc.identifier0022-2860-
dc.identifierhttp://hdl.handle.net/11336/5814-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/304307-
dc.descriptionThe reaction between the antiulcer agent omeprazole (OMZ) with Fe(III) and Co(II) ions was studied, observing a high ability to form metal complexes. The isolated microcrystalline solid complexes were characterized by elemental analysis, X-ray powder diffraction (XRPD), Scanning Electron Microscopy (SEM), magnetic measurements, thermal study, FTIR, UV–Visible, Mössbauer, electronic paramagnetic resonance (EPR), and DFT calculations. The metal–ligand ratio for both complexes was 1:2 determined by elemental and thermal analysis. FTIR spectroscopy showed that OMZ acts as a neutral bidentate ligand through the pyridinic nitrogen of the benzimidazole ring and the oxygen atom of the sulfoxide group, forming a five-membered ring chelate. Electronic, Mössbauer, and EPR spectra together with magnetic measurements indicate a distorted octahedral geometry around the metal ions, where the coordination sphere is completed by two water molecules. SEM and XRPD were used to characterize the morphology and the crystal nature of the complexes. The most favorable conformation for the Fe(III)–OMZ and Co(II)–OMZ complexes was obtained by DFT calculations by using B3LYP/6-31G(d)&LanL2DZ//B3LYP/3-21G(d)&LanL2DZ basis set. Studies of solubility along with the antibacterial activity against Helicobacter pylori for OMZ and its Co(II) and Fe(III) complexes are also reported. Free OMZ and both metal complexes showed antibacterial activity against H. pylori. Co(II)–OMZ presented a minimal inhibitory concentration ∼32 times lower than that of OMZ and ∼65 lower than Fe(III)–OMZ, revealing its promising potential use for the treatment of gastric pathologies associated with the Gram negative bacteria. The morphological changes observed in the cell membrane of the bacteria after the incubation with the metal-complexes were also analyzed by SEM microscopy. The antimicrobial activity of the complexes was proved by the viability test.-
dc.descriptionFil: Russo, Marcos Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; Argentina-
dc.descriptionFil: Vega Hissi, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina-
dc.descriptionFil: Rizzi, Alberto Claudio. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas. Departamento de Física; Argentina-
dc.descriptionFil: Brondino, Carlos Dante. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas. Departamento de Física; Argentina-
dc.descriptionFil: Salinas Ibañez, Angel G.. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina-
dc.descriptionFil: Vega, Alba Edith. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina-
dc.descriptionFil: Silva, Humberto de Jesus. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina-
dc.descriptionFil: Mercader, Roberto Carlos. Universidad Nacional de la Plata. Facultad de Ciencias Exactas; Argentina-
dc.descriptionFil: Narda, Griselda Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherElsevier-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022286014000039-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.molstruc.2013.12.073-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.molstruc.2013.12.073-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectMetal-drug complexes-
dc.subjectOmeprazole-
dc.subjectIron(III)-
dc.subjectCobalt(II)-
dc.subjectQuímica Inorgánica y Nuclear-
dc.subjectCiencias Químicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleSynthesis, physicochemical characterization, DFT calculation and biological activities of Fe(III) and Co(II)–omeprazole complexes. Potential application in the Helicobacter pylori eradication-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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