Coordination entities of a pyrene-based iminopyridine ligand: Structural and photophysical properties

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dc.contributor.authorAyadi A.
dc.contributor.authorBranzea D.G.
dc.contributor.authorAllain M.
dc.contributor.authorCanevet D.
dc.contributor.authorDinçalp H.
dc.contributor.authorEl-Ghayoury A.
dc.date.accessioned2024-07-22T08:11:11Z
dc.date.available2024-07-22T08:11:11Z
dc.date.issued2017
dc.description.abstractA pyrene-based iminopyridine ligand L has been prepared and displays the absorption and emission properties expected for pyrene-based derivatives in solution. Ligand L, as well as two neutral and one monocationic coordination entities, respectively formulated as [ZnLCl2] 1, [ReLCl(CO)3] 3 and [CuL2](BF4) 2, have been crystallized and analyzed by single crystal X-ray diffraction analysis. The corresponding crystal structures indicate the formation of supramolecular architectures generated by offset π⋯π stacking between pyrene fragments and strong C–H⋯π interactions in coordination entity 1. For the cationic coordination entity 2, the crystal packing reveals the presence of C–H⋯F and C–H⋯π interactions and numerous C–H⋯π contacts interconnecting the molecules into a 3D network. As for coordination entity 3, hydrogen bonding and π⋯π stacking link the molecules in a three dimensional manner. Zinc(II) and copper(I) coordination entities have also been studied through isothermal titration calorimetry, which indicate a strong binding and a different stoichiometry for both coordination entities. Photophysical studies of the ligand and corresponding coordination entities show a monomer type pyrene emission and a higher fluorescence quantum yield for the zinc coordination entity 1 as compared with copper 2 and rhenium 3 coordination entities. © 2017 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.poly.2017.07.001
dc.identifier.issn02775387
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15554
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.rightsAll Open Access; Green Open Access
dc.subjectCalorimeters
dc.subjectCalorimetry
dc.subjectCopper compounds
dc.subjectHydrogen bonds
dc.subjectIsotherms
dc.subjectLigands
dc.subjectMolecules
dc.subjectPyrene
dc.subjectTitration
dc.subjectX ray diffraction analysis
dc.subjectZinc compounds
dc.subjectAbsorption and emissions
dc.subjectAbsorption property
dc.subjectCoordination entity
dc.subjectEmission properties
dc.subjectIsothermal titration calorimetry
dc.subjectPhotophysical properties
dc.subjectSingle crystal X-ray diffraction analysis
dc.subjectStability constants
dc.subjectX-ray structure
dc.subjectπ-π- stacking
dc.subjectSingle crystals
dc.titleCoordination entities of a pyrene-based iminopyridine ligand: Structural and photophysical properties
dc.typeArticle

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