Preparation and characterization of the dinuclear complexes [Fe2Cl4L2] and [Fe2Cl4L2]Cl-2 (L = 2-(2 '-pyridyl)quinoxaline)

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dc.contributor.authorKasselouri, S.en
dc.contributor.authorGaroufis, A.en
dc.contributor.authorPerlepes, S. P.en
dc.contributor.authorLutz, F.en
dc.contributor.authorBau, R.en
dc.contributor.authorGourbatsis, S.en
dc.contributor.authorHadjiliadis, N.en
dc.date.accessioned2015-11-24T16:45:21Z
dc.date.available2015-11-24T16:45:21Z
dc.identifier.issn0277-5387-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/8917
dc.rightsDefault Licence-
dc.subjectcrystal structuresen
dc.subjectiron complexesen
dc.subject2-(2-pyridyl)quinoxaline complexesen
dc.subjectfe-57 mossbauer spectroscopyen
dc.subjectchloride alpha,alpha'-diimine systemen
dc.subjectbiheteroaromatic ligand 2-(2'-pyridyl)quinoxalineen
dc.subjectiron-oxo proteinsen
dc.subjectx-ray structureen
dc.subjectcrystal-structuresen
dc.subjectmetal-complexesen
dc.subjectcoordinationen
dc.subjectiron(iii)en
dc.subjectmodelsen
dc.subjectaciden
dc.titlePreparation and characterization of the dinuclear complexes [Fe2Cl4L2] and [Fe2Cl4L2]Cl-2 (L = 2-(2 '-pyridyl)quinoxaline)en
heal.abstractThe 1:1 reactions of FeCl2 . 4H(2)O and FeCl3 with the biheteroaromatic ligand 2-(2'-pyridyl)quinoxaline (L) were studied in methanol. The new complexes [Fe2Cl4L2] (1) and [Fe2Cl4L2]Cl-2 (2) were isolated and characterized by elemental analyses, conductivity measurements, magnetic susceptibilities at room temperature and spectroscopic (IR, far-IR, ligand field, Fe-57 Mossbauer) techniques. The X-ray crystal structure of 1 consists of two Fe-II centres bridged by two chloro ligands, with a terminal chloride and a chelating molecule of L completing five-coordination at each metal. The geometry at iron is distorted trigonal bipyramidal with the bridging chlorides occupying apical and equatorial sites of each Fe-II atom. A five-coordinate dinuclear structure is also assigned for the cation of complex 2. All data are discussed in terms of the nature of bonding and known or assigned structures. (C) 1998 Elsevier Science Ltd. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.secondary<Go to ISI>://000073744600010-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0277538797003756/1-s2.0-S0277538797003756-main.pdf?_tid=0d34d0a97ee13cbba6275e9eb5f7c1ec&acdnat=1333029290_31c5c83994cdc272361f747c8055f5a5-
heal.journalNamePolyhedronen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate1998-
heal.publisherElsevieren
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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