dc.creatorMellace, Maria G.
dc.creatorFagalde, Florencia
dc.creatorKatz, Néstor Eduardo
dc.date.accessioned2016-08-04T19:24:12Z
dc.date.available2016-08-04T19:24:12Z
dc.date.created2016-08-04T19:24:12Z
dc.date.issued2013-12
dc.identifierMellace, Maria G.; Fagalde, Florencia; Katz, Néstor Eduardo; New asymmetric N-heterocyclic-bridged mixed-valent dinuclear complexes of rhenium and ruthenium; Elsevier; Polyhedron; 22; 3; 12-2013; 369-374
dc.identifier0277-5387
dc.identifierhttp://hdl.handle.net/11336/6936
dc.description.abstractwo new mixed-metal mixed-valent complexes, of formulae: [(CO)3(bpy)ReI(bpe)RuIII(NH3)5]4+ and [(CO)3(bpy)ReI(4-CNpy)RuIII(NH3)5]4+ (where bpy=2,2′-bipyridine, bpe=trans-1,2-bis(4-pyridil)ethene, 4-CNpy=4-cyanopyridine), were prepared and characterized as solids and in acetonitrile solutions. From their spectroscopic, electrochemical and photophysical properties, the values for the reorganization energies λ and electronic coupling elements HAB for the metal-to-metal intramolecular electron transfers mediated by the N-heterocyclic bridges were calculated, using the Marcus–Hush formalism. For the 4-CNpy derivative, the reverse ruthenium-to-rhenium charge recombination—that should follow light excitation—is expected to be in the normal region, while for the bpe derivative this reaction is predicted to lie in the inverted region. The differences in redox potentials and in λ for both species account for these changes, which are relevant in the design of efficient photoconverters.
dc.languageeng
dc.publisherElsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/S0277-5387(02)01371-2
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0277-5387(02)01371-2
dc.relationinfo:eu-repo/semantics/altIdentifier/ark/http://www.sciencedirect.com/science/article/pii/S0277538702013712
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectMixed-Valent
dc.subjectRuthenium Complexes
dc.subjectRhenium Complexes
dc.subjectIntramolecular Electron Transfer
dc.subjectEnergy Conversion
dc.titleNew asymmetric N-heterocyclic-bridged mixed-valent dinuclear complexes of rhenium and ruthenium
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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