Assembly of a helical zinc(II) chain and a two-dimensional cadmium(II) coordination polymer using picolinate and sulfate anions as bridging ligands

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dc.contributor.authorPapatriantafyllopoulou, C.en
dc.contributor.authorRaptopoulou, C. P.en
dc.contributor.authorTerzis, A.en
dc.contributor.authorJanssens, J. F.en
dc.contributor.authorManessi-Zoupa, E.en
dc.contributor.authorPerlepes, S. P.en
dc.contributor.authorPlakatouras, J. C.en
dc.date.accessioned2015-11-24T16:52:50Z
dc.date.available2015-11-24T16:52:50Z
dc.identifier.issn0277-5387-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/9929
dc.rightsDefault Licence-
dc.subjectcadmium(ii) sulfato complexesen
dc.subjectcoordination polymersen
dc.subjectcrystal structuresen
dc.subjectmetal picolinate complexesen
dc.subjectvibrational spectroscopyen
dc.subjectzinc(ii) sulfato complexesen
dc.subject3d-metal cluster chemistryen
dc.subjectcrystal-structureen
dc.subjectmagnetic-propertiesen
dc.subjectstructural characterizationen
dc.subjectspectroscopic characterizationen
dc.subjectsuccinamate(-1) liganden
dc.subjectcarboxylate chemistryen
dc.subjectstacking interactionsen
dc.subjectorganic frameworken
dc.subjectmetal-complexesen
dc.titleAssembly of a helical zinc(II) chain and a two-dimensional cadmium(II) coordination polymer using picolinate and sulfate anions as bridging ligandsen
heal.abstractThe initial use of the picolinate (pic(-))/sulfate "blend" in metal chemistry has yielded two neutral coordination polymers. Complexes [Zn-2(SO4)(pic)(2)(H2O)(3)](n) (1) and [Cd-2(SO4)(pic)(2)(H2O)(3)](n) center dot nH(2)O (2 center dot nH(2)O) were prepared by the reaction of MSO4 center dot xH(2)O [M = Zn, x = 7; M = Cd, x = 8/3] with one equivalent of picolinic acid (picH) in aqueous solution in the absence of external base. The structures of both compounds have been determined by single-crystal X-ray crystallography. Complex I consists of helical chains which interact through hydrogen bonds and stacking interactions to form a 3D, 5-connected network. Complex 2 - nH(2)O consists of ribbons that are crosslinked by the sulfato ligands to give a 2D, 4-connected network. Hydrogen bonds and stacking interactions lead to the formation of a 3D supramolecular architecture. In both coordination complexes, the pic ligand adopts two different bridging coordination modes (2.111 and 2.201 in 1; 2.211 and 2.201 in 2 center dot nH(2)O), while the SO42- behaves as a bidentate bridging 2.1100 (Harris notation) ligand. The Zn(II) complex has 5- and 6-coordinate metal ions, whereas 6- and 7-coordinate Cd-11 atoms are present in 2 - nH(2)O. Characteristic vibrational (IR, Raman) bands are discussed in terms of the known structures, and the coordination modes of the pic(-) and SO42- ligands. The thermal decomposition of the Cd(11) compound has also been studied. (C) 2007 Elsevier Ltd. All rights reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1016/j.poly.2007.05.022-
heal.identifier.secondary<Go to ISI>://000249905900004-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0277538707002793/1-s2.0-S0277538707002793-main.pdf?_tid=ab1c4f4fcfa9f39620467fe271c913a1&acdnat=1333035997_1108225b705083fce6c4e0f67e96ffa6-
heal.journalNamePolyhedronen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2007-
heal.publisherElsevieren
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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