Publicación:
PREPARATION, SPECTROSCOPIC, AND ELECTROCHEMICAL CHARACTERIZATION OF METL (II) COMPLEXES WITH SCHIFF BASE LIGANDS DERIVED FROM CHITOSAN: CORRELATIONS OF REDOX POTENTIALS WITH HAMMETT PARAMETERS

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dc.creatorJERÓNIMO ALEJANDRO PÉREZ MUÑOZ
dc.creatorCLAUDIA ANDREA CARO DÍAZ
dc.creatorGERARDO ANDRÉS CABELLO GUZMÁN
dc.creatorLUIS ENRIQUE LILLO ARROYO
dc.date2014
dc.date.accessioned2025-01-10T14:48:06Z
dc.date.available2025-01-10T14:48:06Z
dc.date.issued2014
dc.description.abstractTHE CHITOSAN?(FE(II), CO(II), AND CU(II)) COMPLEXES WERE PREPARED BY MIXING CHITOSAN (CHI) POWDER WITH A SALICYLALDEHYDE (SAL, 5-HYDROGEN (?H)) AND THEIR 5-BROMO (?BR), 5-CHLORO (?CL), 5-METHOXY (?OCH3), 5-FLUORO (?F), 5-METHYL (?CH3), AND 5-NITRO (?NO2) DERIVATIVES (GROUPS R) AND MIXING THESE WITH FECL2 AND CUCL2 IN ETHANOL AND WITH CO(CH3COO)2 SOLUTIONS IN BUTANOL AT 80 °C OVER 8 H IN HETEROGENEOUS PHASE, FOLLOWED BY EXTRACTION WITH ETHANOL AND BUTANOL, RESPECTIVELY. THE COMPLEXES WERE CHARACTERIZED BY FTIR AND UV?VIS SPECTROSCOPY, ELEMENTAL ANALYSIS, AND CYCLIC VOLTAMMETRY. A LINEAR CORRELATION BETWEEN THE METAL FORMAL POTENTIAL VERSUS THE HAMMETT PARAMETERS OF THE SUBSTITUENTS WAS OBSERVED. THE ELECTRON-WITHDRAWING GROUPS SHIFT THE REDOX POTENTIAL TO POSITIVE VALUES, AS A RESULT OF LOWERING THE ENERGY OF THE HIGHEST OCCUPIED MOLECULAR ORBITAL. THE FORMAL POTENTIAL WAS USED AS A MEASUREMENT FOR THE DRIVING FORCE OF CHITOSAN COMPLEXES FOR REDOX REACTIONS.
dc.formatapplication/pdf
dc.identifier.doi10.1080/00958972.2014.977271
dc.identifier.issn1029-0389
dc.identifier.issn0095-8972
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/9030
dc.languagespa
dc.publisherJOURNAL OF COORDINATION CHEMISTRY
dc.relation.uri10.1080/00958972.2014.977271
dc.rightsPUBLICADA
dc.titlePREPARATION, SPECTROSCOPIC, AND ELECTROCHEMICAL CHARACTERIZATION OF METL (II) COMPLEXES WITH SCHIFF BASE LIGANDS DERIVED FROM CHITOSAN: CORRELATIONS OF REDOX POTENTIALS WITH HAMMETT PARAMETERS
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
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