Complexes trans-Pt(BODIPY)X(PEt3)2 : excitation energy-dependent fluorescence and phosphorescence emissions, oxygen sensing and photocatalysis

Lade...
Vorschaubild
Dateien
Irmler_0-345546.pdf
Irmler_0-345546.pdfGröße: 3.04 MBDownloads: 352
Datum
2016
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Hybrid
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Zusammenfassung

We report on five new complexes with the general formula trans-Pt(BODIPY)X(PEt3)2 (Pt-X), where the platinum(ii) ion is σ-bonded to a 4,4-difluoro-4-bora-3a,4a-diaza-s-indacen-8-yl (BODIPY) and an anionic ligand X- (X = Cl-, I-, NO2-, NCS-, CH3-). All five complexes were characterized by multinuclear NMR, electronic absorption and luminescence spectroscopy and by X-ray diffraction analysis. Four of these complexes show efficient intersystem crossing (ISC) from an excited singlet state to a BODIPY-centred T1 state and exhibit dual fluorescence and phosphorescence emission from the BODIPY ligand. In Pt-I, the fluorescence is almost completely quenched, whereas the phosphorescence quantum yield reaches a value of 40%. The rate of ISC and the ratio of phosphorescence to fluorescence emissions depend on the excitation wavelength (i.e. on which specific transition is excited). The performance of these complexes as one-component oxygen sensors and their photocatalytic activities were tested by Stern-Volmer quenching experiments and by monitoring the oxidation of 1,5-dihydroxynaphthalene with 1O2 generated from the long-lived triplet state of the sensitizer by triplet-triplet annihilation with 3O2. Exceptionally high 1O2 generation quantum yields of up to near unity were obtained.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690IRMLER, Peter, Rainer F. WINTER, 2016. Complexes trans-Pt(BODIPY)X(PEt3)2 : excitation energy-dependent fluorescence and phosphorescence emissions, oxygen sensing and photocatalysis. In: Dalton transactions. 2016, 45(25), pp. 10420-10434. ISSN 1477-9226. eISSN 1477-9234. Available under: doi: 10.1039/c6dt01623e
BibTex
@article{Irmler2016-06-21Compl-34695,
  year={2016},
  doi={10.1039/c6dt01623e},
  title={Complexes trans-Pt(BODIPY)X(PEt<sub>3</sub>)<sub>2</sub> : excitation energy-dependent fluorescence and phosphorescence emissions, oxygen sensing and photocatalysis},
  number={25},
  volume={45},
  issn={1477-9226},
  journal={Dalton transactions},
  pages={10420--10434},
  author={Irmler, Peter and Winter, Rainer F.}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/34695">
    <dcterms:title>Complexes trans-Pt(BODIPY)X(PEt&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt; : excitation energy-dependent fluorescence and phosphorescence emissions, oxygen sensing and photocatalysis</dcterms:title>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-07-07T12:39:19Z</dcterms:available>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/34695/3/Irmler_0-345546.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:issued>2016-06-21</dcterms:issued>
    <dc:rights>Attribution 3.0 Unported</dc:rights>
    <dc:contributor>Winter, Rainer F.</dc:contributor>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/3.0/"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Irmler, Peter</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-07-07T12:39:19Z</dc:date>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/34695/3/Irmler_0-345546.pdf"/>
    <dc:creator>Winter, Rainer F.</dc:creator>
    <dcterms:abstract xml:lang="eng">We report on five new complexes with the general formula trans-Pt(BODIPY)X(PEt&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt; (Pt-X), where the platinum(ii) ion is σ-bonded to a 4,4-difluoro-4-bora-3a,4a-diaza-s-indacen-8-yl (BODIPY) and an anionic ligand X&lt;sup&gt;-&lt;/sup&gt; (X = Cl&lt;sup&gt;-&lt;/sup&gt;, I&lt;sup&gt;-&lt;/sup&gt;, NO&lt;sub&gt;2&lt;/sub&gt;&lt;sup&gt;-&lt;/sup&gt;, NCS&lt;sup&gt;-&lt;/sup&gt;, CH&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;-&lt;/sup&gt;). All five complexes were characterized by multinuclear NMR, electronic absorption and luminescence spectroscopy and by X-ray diffraction analysis. Four of these complexes show efficient intersystem crossing (ISC) from an excited singlet state to a BODIPY-centred T&lt;sub&gt;1&lt;/sub&gt; state and exhibit dual fluorescence and phosphorescence emission from the BODIPY ligand. In Pt-I, the fluorescence is almost completely quenched, whereas the phosphorescence quantum yield reaches a value of 40%. The rate of ISC and the ratio of phosphorescence to fluorescence emissions depend on the excitation wavelength (i.e. on which specific transition is excited). The performance of these complexes as one-component oxygen sensors and their photocatalytic activities were tested by Stern-Volmer quenching experiments and by monitoring the oxidation of 1,5-dihydroxynaphthalene with &lt;sup&gt;1&lt;/sup&gt;O&lt;sub&gt;2&lt;/sub&gt; generated from the long-lived triplet state of the sensitizer by triplet-triplet annihilation with &lt;sup&gt;3&lt;/sup&gt;O&lt;sub&gt;2&lt;/sub&gt;. Exceptionally high &lt;sup&gt;1&lt;/sup&gt;O&lt;sub&gt;2&lt;/sub&gt; generation quantum yields of up to near unity were obtained.</dcterms:abstract>
    <dc:creator>Irmler, Peter</dc:creator>
    <dc:language>eng</dc:language>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/34695"/>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen