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dc.creatorRakic, AA
dc.creatorMedaković, Vesna
dc.creatorZarić, Snežana
dc.date.accessioned2018-11-22T00:09:23Z
dc.date.available2018-11-22T00:09:23Z
dc.date.issued2006
dc.identifier.issn0162-0134
dc.identifier.urihttp://cherry.chem.bg.ac.rs/handle/123456789/751
dc.description.abstractMany properties of cytochromes and model systems depend on orientations of axial ligands. In this work, we elucidated the role of porphyrin substituents on orientation of axial ligands in model systems of cytochromes. The orientations of axially coordinated imidazoles and pyridines in crystal structures of model systems of cytochromes were analyzed and data were compared with previous quantum-chemical calculations. The results show that eight ethyl groups on porphyrin ring strongly favor parallel orientation, hence, in all these complexes axial ligands, pyridines or imidazoles, are mutually parallel. Four phenyl or mesityl groups at meso-carbons also favor parallel orientation but less strongly. Hence, in most of the bis-imidazole complexes the orientation is parallel, while in bis-pyridine complexes the orientation of pyridines depends on oxidation state of Fe. In bis-pyridine Fe(II) complexes orientation is parallel, in Fe(III) it is orthogonal. This analysis is in agreement with previous quantum-chemical calculations. (C) 2005 Elsevier Inc. All rights reserved.en
dc.publisherElsevier Science Inc, New York
dc.rightsrestrictedAccess
dc.sourceJournal of Inorganic Biochemistry
dc.subjectaxial ligandsen
dc.subjectporphyrinen
dc.subjectcytochromesen
dc.subjectimidazoleen
dc.subjectpyridineen
dc.titleOrientations of axially coordinated imidazoles and pyridines in crystal structures of model systems of cytochromesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractРакиц, AA; Зарић, Снежана; Медаковић, Весна;
dc.citation.volume100
dc.citation.issue1
dc.citation.spage133
dc.citation.epage142
dc.identifier.wos000234770200015
dc.identifier.doi10.1016/j.jinorgbio.2005.10.010
dc.citation.other100(1): 133-142
dc.citation.rankM21
dc.identifier.pmid16356550
dc.type.versionpublishedVersionen
dc.identifier.scopus2-s2.0-29344472619
dc.identifier.rcubKon_1704


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