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Synthesis and characterization of metallo-supramolecular polymers from thiophene-based unimers bearing pybox ligands

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dc.title Synthesis and characterization of metallo-supramolecular polymers from thiophene-based unimers bearing pybox ligands en
dc.contributor.author Hladysh, Sviatoslav
dc.contributor.author Václavková, Daniela
dc.contributor.author Vrbata, David
dc.contributor.author Bondarev, Dmitrij
dc.contributor.author Havlíček, David
dc.contributor.author Svoboda, Jan
dc.contributor.author Zedník, Jiří
dc.contributor.author Vohlídal, Jiří
dc.relation.ispartof RSC Advances
dc.identifier.issn 2046-2069 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2017
utb.relation.volume 7
utb.relation.issue 18
dc.citation.spage 10718
dc.citation.epage 10728
dc.type article
dc.language.iso en
dc.publisher Royal Society of Chemistry (RSC)
dc.identifier.doi 10.1039/c6ra26665g
dc.relation.uri http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA26665G#!divAbstract
dc.description.abstract A series of novel metallo-supramolecular polymers was successfully prepared, based on 2,6-bis(2-oxazolinyl)pyridine building blocks consisting of pyridine flanked by two oxazoline rings as a tridentate binding site bridged with thiophene, bithiophene and thienothiophene as a linker, beginning from a cheap and commercially available 1,4-dihydro-4-oxo-2,6-pyridinedicarboxylic (chelidamic) acid. Metallo-supramolecular polymers were obtained and spectroscopically characterized upon treatment of the synthesized building blocks, also known as unimers, with the following metal ions: Fe2+, Zn2+, Ni2+, Cu2+. During the self-assembly process of the prepared unimers with a Cu2+ ion coupler, UV/vis investigation showed the highest shift of absorption maxima to lower energies, contrary to the Fe2+ ion couplers where the lowest value of shift was detected, compared to the free unimer. Upon the complexation of the Fe2+ ion coupler with selected unimers, the appearance was observed of new absorption bands around 600 nm ascribable to metal-to-ligand charge-transfer transitions. The luminescence study of the complexation of the synthesized unimers with Zn2+ exhibited a high fluorescence increase with an increase of metal ion concentration. Adversely, all of the other metals only showed fluorescence quenching. © The Royal Society of Chemistry. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1006913
utb.identifier.obdid 43877114
utb.identifier.scopus 2-s2.0-85013076695
utb.identifier.wok 000395796700014
utb.identifier.coden RSCAC
utb.source j-scopus
dc.date.accessioned 2017-06-27T08:13:13Z
dc.date.available 2017-06-27T08:13:13Z
dc.description.sponsorship 15-22305S, GACR, Grantová Agentura České Republiky; 796713, GA, UK, Grantová Agentura, Univerzita Karlova; 876213, GA, UK, Grantová Agentura, Univerzita Karlova
dc.description.sponsorship Czech Science Foundation [15-22305S]; COST Action (SIPS) European Network on Smart Inorganic Polymers [CM1302]; Grant Agency of Charles University [876213, 796713]
dc.rights Attribution 3.0 International
dc.rights.uri http://creativecommons.org/licenses/by/3.0/
dc.rights.access openAccess
utb.contributor.internalauthor Václavková, Daniela
utb.contributor.internalauthor Bondarev, Dmitrij
utb.fulltext.affiliation Sviatoslav Hladysh,* a Daniela Václavková, b David Vrbata, a Dmitrij Bondarev, bc David Havlíček, e Jan Svoboda, e Jiří Zedník a and Jiří Vohlídal a a Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12840 Prague 2, Czech Republic. E-mail: sviatoslavhladysh@gmail.com b Tomas Bata University in Zlín, Faculty of Technology, Department of Polymer Engineering, Vavrečkova 275, CZ-762 72 Zlín, Czech Republic c Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41 Bratislava, Slovakia d Department of Inorganic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12840 Prague 2, Czech Republic e Institute of Macromolecular Chemistry AS CR, v.v.i, Heyrovsky Sq. 2, 16206, Prague 6, Czech Republic
utb.fulltext.dates Received 11th November 2016 Accepted 27th January 2017
utb.fulltext.sponsorship The authors are grateful to the Czech Science Foundation (project 15-22305S) and the COST Action CM1302 (SIPS) European Network on Smart Inorganic Polymers and the Grant Agency of Charles University (project number 876213 and 796713) for Financial support.
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