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dc.contributor.authorAntoniadis, C. D.en
dc.contributor.authorHadjikakou, S. K.en
dc.contributor.authorHadjiliadis, N.en
dc.contributor.authorKubicki, M.en
dc.contributor.authorButler, I. S.en
dc.date.accessioned2015-11-24T16:49:54Z-
dc.date.available2015-11-24T16:49:54Z-
dc.identifier.issn1144-0546-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/9542-
dc.rightsDefault Licence-
dc.subjectcharge-transfer complexesen
dc.subjectcrystal-structuresen
dc.subjectmolecular-complexesen
dc.subjectpolyiodide saltsen
dc.subjectpressure superconductivityen
dc.subjectelectrical-propertiesen
dc.subjectchemical oxidationen
dc.subjectantithyroid drugsen
dc.subjectdiiodine adductsen
dc.subjectft-ramanen
dc.titleSynthesis, X-ray characterization and study of new ionic complexes of 2-pyridone, obtained by oxidation with I-2en
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1039/B417828a-
heal.identifier.secondary<Go to ISI>://000228744800011-
heal.identifier.secondaryhttp://pubs.rsc.org/en/content/articlepdf/2005/nj/b417828a-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2005-
heal.abstractThe reaction of 2-pyridone (C5H5NO or PYOH) with diiodine in molar ratios of 2 : 1 and 1 : 2 resulted in the formation of complexes {[(PYOH)(3)(PYOH)(+)]center dot I-3(-)} (1) and {{(PYOH)(6)center dot[(PYOH)(2)](2+)}center dot 0.5I(-)center dot 1.5I(7)(-)center dot I-2} (2), respectively. The reactions were carried out in dichloromethane solutions in air. The compounds were characterized by elemental analysis, DTA-TGA chromatography, FT-Raman, FT-IR, UV-vis and EPR spectroscopies. Crystal structures of the named complexes have been determined by X-ray diffraction at 120(1) K (1) and 293(2) K (2). Compound 1, [(C20H20N4O4)I-3], monoclinic, space group C2/c, consists of a cationic PYOH+ radical species and an I-3(-) counter anion; three neutral PYOH molecules are also bound to the complex. The crystal structure of [(C40H40N8O8)I-13] (2) reveals a centrosymmetric P-1 triclinic space group containing two cationic PYOH+ species, with the anionic counterparts being one half I- and three halves I-7(-). Also, a neutral diiodine molecule I-2 is retained by weak halogen-halogen interactions to I-, as well as six neutral PYOH ligands. The structures of 1 and 2 consist of hydrogen-bonded pyridine layers; polyiodide fragments fill the spaces between the layers, additionally kept together by a number of weak C-H center dot center dot center dot I interactions.en
heal.publisherRoyal Society of Chemistryen
heal.journalNameNew Journal of Chemistryen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ

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