Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/107359
Type: Artigo de periódico
Title: Structural Analysis And Magnetic Properties Of The Dicubane-like Tetramer [ni(dpk·oh)(n3)]4·2h2o (dpk = Di-2-pyridyl Ketone)
Author: Serna Z.E.
Gotzone Barandika M.
Cortes R.
Karmele Urtiaga M.
Barberis G.E.
Rojo T.
Abstract: A nickel(II)tetramer with azide and di-2-pyridyl ketone (dpk) of general formula [Ni(dpk·OH)(N3)]4·2H2O (dpk·OH being the deprotonated gem-diol resulting from hydrolysis of dpk) was synthesized and structurally characterised through X-ray single crystal diffraction analysis and IR spectroscopy. The structure consists of dicubane-like tetrameric entities where simultaneous (1,1)-N3 and O bridges can be found, being an unprecedented arrangement for metal(II) azide systems. Measurements of the magnetic susceptibility revealed the occurrence of ferromagnetic interactions in the clusters. The extension of the magnetic exchange has been evaluated by means of a spin Hamiltonian with four J constants (J1 = 18.8, J2 = 6.9, J3 = 1.3 and J4 = 0.2 cm-1). © The Royal Society of Chemistry 2000.
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0005943213&partnerID=40&md5=bd3097b4ac0f1c069e77753693b0baef
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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