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dc.contributor.author
Glöckle, Markus
dc.contributor.author
Katz, Néstor Eduardo
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dc.contributor.author
Ketterle, Michael
dc.contributor.author
Kaim, Wolfgang
dc.date.available
2018-10-10T20:11:11Z
dc.date.issued
2002-07
dc.identifier.citation
Glöckle, Markus; Katz, Néstor Eduardo; Ketterle, Michael; Kaim, Wolfgang; Qualitatively and quantitatively different solvatochromism of the MLCT and MMCT absorption bands of centrosymmetric acceptor-bridged diiron (II, II) and diiron(III, II) cyanide complexes; Elsevier Science Sa; Inorganica Chimica Acta; 336; 7-2002; 55-60
dc.identifier.issn
0020-1693
dc.identifier.uri
http://hdl.handle.net/11336/62132
dc.description.abstract
The energies of the metal-to-ligand charge transfer (MLCT) and metal-to-metal charge transfer (MMCT) absorption bands of a number of heterocycle-bridged diiron(II, II) homovalent and diiron(III, II) mixed-valent complexes correlate linearly with Gutmann's acceptor number (AN). The compounds are (NEt4)6[(NC)5Fe(μ-tz)Fe(CN)5] and (NEt4)5[(NC)5Fe(μ-tz)Fe(CN)5], tz=1,2,4,5-tetrazine; (NEt4)4[(NC)4Fe(μ-bptz)Fe(CN) 4] and (NEt4)3[(NC)4Fe(μ-bptz)Fe(CN) 4], bptz=3,6-bis(2-pyridyl)-1,2,4,5-tetrazine; (NEt4)4[(NC)4Fe(μ-bmtz)Fe(CN) 4], bmtz=3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine; (NEt4)4[(NC)4Fe(μ-bpym)Fe(CN) 4], bpym=2,2′-bipyrimidine. Mononuclear analogues of the tz and bpym ligands were also studied. Various degrees of negative and positive solvatochromism are observed for centrosymmetric dinuclear systems. Unusual observations include the large negative solvatochromism of MLCT bands in Fe(II)Fe(II) species lacking a permanent dipole moment, the positive solvatochromism of MLCT/LMCT bands and the small negative solvatochromism of MMCT bands in the valence-averaged Fe2.5Fe2.5 systems.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Charge Transfer
dc.subject
Cyano Complexes
dc.subject
Iron Compounds
dc.subject
Mixed Valence
dc.subject
Solvatochromism
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Qualitatively and quantitatively different solvatochromism of the MLCT and MMCT absorption bands of centrosymmetric acceptor-bridged diiron (II, II) and diiron(III, II) cyanide complexes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-09T20:31:30Z
dc.journal.volume
336
dc.journal.pagination
55-60
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Glöckle, Markus. University Of Stuttgart; Alemania
dc.description.fil
Fil: Katz, Néstor Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
dc.description.fil
Fil: Ketterle, Michael. University Of Stuttgart; Alemania
dc.description.fil
Fil: Kaim, Wolfgang. University Of Stuttgart; Alemania
dc.journal.title
Inorganica Chimica Acta
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0020169302008460
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/S0020-1693(02)00846-0
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