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Por favor, use este identificador para citar o enlazar este ítem: http://repositoriodigital.ipn.mx/handle/123456789/10780
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dc.creatorLEMUS SANTANA, A.A.-
dc.creatorRODRIGUEZ HERNANDEZ, J.-
dc.creatorGONZALEZ, M.-
dc.creatorDEMESHKO, S.-
dc.creatorAVILA, M.-
dc.creatorKNOBEL, M.-
dc.creatorREGUERA, E.-
dc.date2012-03-23T00:47:50Z-
dc.date2012-03-23T00:47:50Z-
dc.date2011-06-21-
dc.date.accessioned2013-01-16T09:53:11Z-
dc.date.available2013-01-16T09:53:11Z-
dc.date.issued2013-01-16-
dc.identifierJournal of Solid State Chemistry 184 (2011) 2124–2130-
dc.identifierhttp://hdl.handle.net/123456789/285-
dc.identifier.urihttp://www.repositoriodigital.ipn.mx/handle/123456789/10780-
dc.descriptionThe formation of T–pyz–Ni bridges (pyz¼pyrazine) in the T[Ni(CN)4] 2pyz series is known for T¼Mn, Zn, Cd and Co but not with T¼Fe, Ni. In this contribution the existence of such bridges also for T¼Fe, Ni is discussed. The obtained pillared solids, T[Ni(CN)4] 2pyz, were characterized from XRD, TG, UV–Vis, IR, Raman, M¨ossbauer and magnetic data. Their crystal structures were refined in the orthorhombic Pmna space group from XRD powder patterns. The structural behavior of these solids on cooling down to 77 K was also studied. In the 180–200 K temperature range the occurrence of a structural transition to a monoclinic structure (P21/c space group) was observed. No temperature induced spin transition was observed for Fe[Ni(CN)4] 2pyz. The iron (II) was found to be in high spin electronic state and this configuration is preserved on cooling down to 2 K. The magnetic data indicate the occurrence of a low temperature weak anti-ferromagnetic interaction between T metal centers within the T[Ni(CN)4] layer. In the paramagnetic region for Ni[Ni(CN)4] 2pyz, a reversible temperature induced spin transition for the inner Ni atom was detected. & 2011 Elsevier Inc. All rights reserved.-
dc.languageen_US-
dc.publisherJournal of Solid State Chemistry-
dc.subjectCrystal chemistry-
dc.subjectStructural study-
dc.subjectLayered compound-
dc.subjectPillared solid-
dc.subjectSpin transition-
dc.titleSynthesis and characterization of T[Ni(CN)4] 2pyz with T¼Fe, Ni; pyz¼pyrazine: Formation of T–pyz–Ni bridges-
dc.typeArticle-
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