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Πεδίο DCΤιμήΓλώσσα
dc.contributor.authorPanayiotidou, Lefkia-
dc.contributor.authorStylianou, Marios-
dc.contributor.authorArabatzis, Nikos B.-
dc.contributor.authorDrouza, Chryssoula-
dc.contributor.authorLianos, Panagiotis-
dc.contributor.authorStathatos, Elias-
dc.contributor.authorKeramidas, Anastasios D.-
dc.date.accessioned2017-02-24T08:39:48Z-
dc.date.available2017-02-24T08:39:48Z-
dc.date.issued2013-03-22-
dc.identifier.citationPolyhedron, 2013, vol. 52, pp. 856-865en_US
dc.identifier.issn02775387-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/9922-
dc.description.abstractNew Eu3+, Sm3+ and Gd3+ complexes of triazine ligands 2,4,6-tri(2-pyridyl)-1,3,5-triazine, 3,5,6-tri(2-pyridyl)-1,2, 4-triazine and 5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine were synthesized. The structure of five of them was established by single crystal X-ray crystallography. Various aspects of the triazine ligands such as steric interactions, deviation from the planarity and coordination mode define the structure of the complexes. The 1H NMR spectra of the solutions of Eu3+ and Sm3+ molecules showed broad paramagnetic shifted peaks assigned to the protons of the ligated triazines. The powder EPR spectra of the Gd3+ complexes exhibited a broad peak centered at g = 2. All Eu3+ and Sm3+ complexes display characteristic lanthanide emission upon UV excitation. The enhancement of the luminescence is attributed to the effective energy transfer from the triazine ligand to the lanthanide ion. 1,2,4-Triazines show to be better sensitizers for Eu3+ and Sm 3+ than the 1,3,5-triazine ligand. Co-coordination of the triazines with β-diketonate ligands further enhances the luminescence of the lanthanides. This enhancement was attributed to the synergistic effect of the two ligands and/or the decrease of the vibrational quenching processes.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofPolyhedronen_US
dc.rights© Elsevieren_US
dc.subjectCrystal structureen_US
dc.subjectTriazineen_US
dc.subjectEuropiumen_US
dc.subjectGadoliniumen_US
dc.subjectLuminescenceen_US
dc.subjectSamariumen_US
dc.titleSynthesis, crystal structure and luminescence of novel Eu3+, Sm3+ and Gd3+ complexes of 1,3,5- and 1,2,4-triazinesen_US
dc.typeArticleen_US
dc.collaborationUniversity of Cyprusen_US
dc.collaborationUniversity of Patrasen_US
dc.collaborationCyprus University of Technologyen_US
dc.subject.categoryAgricultural Biotechnologyen_US
dc.journalsSubscriptionen_US
dc.countryCyprusen_US
dc.countryGreeceen_US
dc.subject.fieldAgricultural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1016/j.poly.2012.07.029en_US
dc.relation.volume52en_US
cut.common.academicyear2012-2013en_US
dc.identifier.spage856en_US
dc.identifier.epage865en_US
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.fulltextNo Fulltext-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0002-2630-4323-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
crisitem.journal.journalissn0277-5387-
crisitem.journal.publisherElsevier-
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