Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/67721
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dc.contributor.authorYeh, C.W.en_US
dc.contributor.authorLiu, I.P.C.en_US
dc.contributor.authorWang, R.R.en_US
dc.contributor.authorYeh, C.Y.en_US
dc.contributor.authorLee, G.H.en_US
dc.contributor.authorPeng, S.M.en_US
dc.date2010zh_TW
dc.date.accessioned2014-06-11T05:55:35Z-
dc.date.available2014-06-11T05:55:35Z-
dc.identifier.issn1434-1948zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/67721-
dc.description.abstractThe synthesis, crystal structures, and magnetic properties of linear tetranickel string complexes supported by mixed 2-(alpha-pyridylamino)-1,8-naphthyridine (Hpyany) and N-(p-tolylsulfonyl)dipyridyldiamine (H(2)tsdpda) ligands are reported. In comparing the crystal structure of [Ni-4(pyany)(2)(tsdpda)(2)Cl] (1) with that of [Ni-4(pyany)(2)(tsdpda)(2)Cl(H2O)[(PF6) (2), the one-electron-reduced compound 1 displays shorter Ni(3)-Ni(4) (ca. 2.28 angstrom) and longer Ni(3)-N (ca. 2.02 angstrom) bond lengths. Similar trends have also been observed for axial NCS--substituted derivatives [Ni-4(pyany)(2)(tsdpda)(2)(NCS)] (3) and [Ni-4(pyany)(2)(tsdpda)(2)(NCS)(2)] (4). These structural variations indicate the formation of a mixed-valence [Ni-2](3+) unit and a three-electron, two-center Ni(4)-Ni(3) a bond. Magnetic measurements of 2 and 4 show that both terminal Ni(1) and Ni(4) ions are in the high-spin states (S = 1) and are antiferromagnetically coupled. The one-electron-reduced complexes 1 and 3, however, exhibit a delocalized mixed-valence [Ni-2](3+) unit (S = (3)/(2)), which is antiferromagnetically coupled with the terminal high-spin Ni-II ion.en_US
dc.language.isoen_USzh_TW
dc.relationEuropean Journal of Inorganic Chemistryen_US
dc.relation.ispartofseriesEuropean Journal of Inorganic Chemistry, Issue 20, Page(s) 3153-3159.en_US
dc.relation.urihttp://dx.doi.org/10.1002/ejic.201000145en_US
dc.subjectMolecular wireen_US
dc.subjectMixed-valent compoundsen_US
dc.subjectMagnetic propertiesen_US
dc.subjectNickelen_US
dc.subjectLigand effectsen_US
dc.subjecttheoretical-analysisen_US
dc.subjectquantum-mechanicsen_US
dc.subjectnew-generationen_US
dc.subjectmetalen_US
dc.subjectchainen_US
dc.subjectdipyridylamideen_US
dc.subjectwiresen_US
dc.subjectcuen_US
dc.titleLinear Tetranickel String Complexes with Mixed Supported Ligands and Mixed-Valence Units Ni-2 (3+): Synthesis, Crystal Structure, and Magnetic Studiesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1002/ejic.201000145zh_TW
item.openairetypeJournal Article-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en_US-
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