Mostrar el registro sencillo del ítem

dc.contributor.authorColodrero, Rosario M.P.
dc.contributor.authorAngeli, Giasemi K.
dc.contributor.authorBazaga García, Montse
dc.contributor.authorOlivera-Pastor, Pascual 
dc.contributor.authorVillemin, Didier
dc.contributor.authorLosilla, Enrique R.
dc.contributor.authorMartos, Estefanía Q.
dc.contributor.authorHix, Gary B.
dc.contributor.authorG. Aranda, Miguel Ángel
dc.contributor.authorDemadis, Konstantinos D.
dc.contributor.authorCabeza-Diaz, Aurelio 
dc.date.accessioned2021-03-04T09:10:44Z
dc.date.available2021-03-04T09:10:44Z
dc.date.created2021
dc.date.issued2013-07-24
dc.identifier.citationInorg. Chem. 2013, 52, 8770−8783es_ES
dc.identifier.urihttps://hdl.handle.net/10630/21017
dc.description.abstractTwo new families of divalent metal hybrid derivatives from the aromatic tetraphosphonic acids 1,4- and 1,3-bis(aminomethyl)benzene-N,N′-bis(methylenephosphonic acid), (H2O3PCH2)2−N−CH2C6H4CH2−N(CH2PO3H2)2 (designated herein as p-H8L and m-H8L) have been synthesized by crystallization at room temperature and hydrothermal conditions. The crystal structures of M[(HO3PCH2)2N(H)-CH2C6H4CH2N(H)(CH2PO3H)2(H2O)2]·2H2O (M = Mg, Co, and Zn), M−(p-H6L), and M[(HO3 PCH2)2N(H)-CH2C6H4CH2N(H)(CH2PO3H)2]·nH2O (M = Ca, Mg, Co, and Zn and n = 1−1.5), M−(m-H6L), were solved ab initio by synchrotron powder diffraction data using the direct methods and subsequently refined using the Rietveld method. The crystal structure of the isostructural M−(p-H6L) is constituted by organic−inorganic monodimensional chains where the phosphonate moiety acts as a bidentate chelating ligand bridging two metal octahedra. M−(m-H6L) compounds exhibit a 3D pillared open-framework with small 1D channels filled with water molecules. These channels are formed by the pillaring action of the organic ligand connecting adjacent layers through the phosphonate oxygens. Thermogravimetric and X-ray thermodiffraction analyses of M−(p-H6L) showed that the integrity of their crystalline structures is maintained up to 470 K, without significant reduction of water content, while thermal decomposition takes place above 580 K. The utility of M−(p-H6L) (M = Mg and Zn) hybrid materials in corrosion protection was investigated in acidic aqueous solutions. In addition, the impedance data indicate both families of compounds display similar proton conductivities (σ ∼ 9.4 × 10−5 S·cm−1, at 98% RH and 297 K), although different proton transfer mechanisms are involved.es_ES
dc.description.sponsorshipProyecto nacional MAT2010-15175es_ES
dc.language.isoenges_ES
dc.publisherAmerican Chemical Societyes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectQuímica inorgánicaes_ES
dc.subject.otherMultifunctional Metal Xylenediaminetetraphosphonatees_ES
dc.subject.otherX-ray diffractiones_ES
dc.subject.otherSynchrotron powder diffractiones_ES
dc.subject.otherMetal phosphonateses_ES
dc.subject.otherProton conductivityes_ES
dc.titleStructural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybridses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.identifier.doidx.doi.org/10.1021/ic400951s
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem