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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/494
DC FieldValueLanguage
dc.contributor.authorRakić, Aleksandraen_US
dc.contributor.authorMedaković, Vesna Ben_US
dc.contributor.authorZarić, Snezana Den_US
dc.date.accessioned2022-12-15T16:04:16Z-
dc.date.available2022-12-15T16:04:16Z-
dc.date.issued2006-01-
dc.identifier.issn0162-0134en
dc.identifier.urihttps://dspace.ffh.bg.ac.rs/handle/123456789/494-
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.en
dc.language.isoenen
dc.relation.ispartofJournal of inorganic biochemistryen
dc.subjectAxial ligandsen
dc.subjectCytochromesen
dc.subjectImidazoleen
dc.subjectPorphyrinen
dc.subjectPyridineen
dc.subject.meshCytochromesen
dc.subject.meshImidazolesen
dc.subject.meshModels, Chemicalen
dc.subject.meshPyridinesen
dc.titleOrientations of axially coordinated imidazoles and pyridines in crystal structures of model systems of cytochromesen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1016/j.jinorgbio.2005.10.010-
dc.identifier.pmid16356550-
dc.identifier.scopus2-s2.0-29344472619-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/29344472619-
dc.relation.firstpage133en
dc.relation.lastpage142en
dc.relation.issue1en
dc.relation.volume100en
item.openairetypeJournal Article-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.orcid0000-0003-1489-6373-
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry