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dc.creatorRychlewska, Urszula
dc.creatorWarzajtis, Beata
dc.creatorRadanović, Dušanka
dc.creatorDraskovic, Nenad S.
dc.creatorStanojević, Ivana M.
dc.creatorĐuran, Miloš
dc.date.accessioned2019-01-30T17:28:33Z
dc.date.available2019-01-30T17:28:33Z
dc.date.issued2011
dc.identifier.issn0277-5387
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/915
dc.description.abstractThis paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bis-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation.en
dc.publisherPergamon-Elsevier Science Ltd, Oxford
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172036/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172055/RS//
dc.rightsrestrictedAccess
dc.sourcePolyhedron
dc.subjectM(II)-1,3-pdta complexesen
dc.subjectSr(II) ionen
dc.subjectSynthesisen
dc.subjectX-ray characterizationen
dc.titleStructural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2Oen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractРадановић, Душанка; Дјуран, Милос И.; Станојевиц, Ивана М.; Драсковиц, Ненад С.; Wарзајтис, Беата; Рyцхлеwска, Урсзула;
dc.citation.volume30
dc.citation.issue6
dc.citation.spage983
dc.citation.epage989
dc.citation.other30(6): 983-989
dc.citation.rankM22
dc.identifier.doi10.1016/j.poly.2010.12.045
dc.identifier.rcubConv_2615
dc.identifier.scopus2-s2.0-79953206908
dc.identifier.wos000290357100011
dc.type.versionpublishedVersion


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