Triplet quenching pathway control with molecular dyads enables the identification of a highly oxidizing annihilator class
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Maria-Sophie Bertrams
- Katharina Hermainski
- Jean-Marc Moersdorf
- Joachim Ballmann
- Christoph Kerzig
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:001036627300001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1039/d3sc01725g
- eISSN
- 2041-6539
- Externe Identifier
- Clarivate Analytics Document Solution ID: O9JY1
- PubMed Identifier: 37592982
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 32
- Zeitschrift
- CHEMICAL SCIENCE
- Paginierung
- 8583 - 8591
- Datum der Veröffentlichung
- 2023
- Status
- Published
- Titel
- Triplet quenching pathway control with molecular dyads enables the identification of a highly oxidizing annihilator class
- Sub types
- Article
- Ausgabe der Zeitschrift
- 14
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:p>Molecular dyads efficiently transfer the triplet energy, whereas the parent metal complexes and organic photosensitizers reduce these substrates, leading to the identification of unexplored triplet photochemistry and novel aqueous annihilators.</jats:p>
- Autoren
- Maria-Sophie Bertrams
- Katharina Hermainski
- Jean-Marc Mörsdorf
- Joachim Ballmann
- Christoph Kerzig
- DOI
- 10.1039/d3sc01725g
- eISSN
- 2041-6539
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 32
- Zeitschrift
- Chemical Science
- Sprache
- en
- Online publication date
- 2023
- Paginierung
- 8583 - 8591
- Status
- Published online
- Herausgeber
- Royal Society of Chemistry (RSC)
- Herausgeber URL
- http://dx.doi.org/10.1039/d3sc01725g
- Datum der Datenerfassung
- 2024
- Titel
- Triplet quenching pathway control with molecular dyads enables the identification of a highly oxidizing annihilator class
- Ausgabe der Zeitschrift
- 14
Datenquelle: Crossref
- Abstract
- Metal complex - arene dyads typically act as more potent triplet energy donors compared to their parent metal complexes, which is frequently exploited for increasing the efficiencies of energy transfer applications. Using unexplored dicationic phosphonium-bridged ladder stilbenes (P-X<sup>2+</sup>) as quenchers, we exclusively observed photoinduced electron transfer photochemistry with commercial organic photosensitizers and photoactive metal complexes. In contrast, the corresponding pyrene dyads of the tested ruthenium complexes with the very same metal complex units efficiently sensitize the P-X<sup>2+</sup> triplets. The long-lived and comparatively redox-inert pyrene donor triplet in the dyads thus provides an efficient access to acceptor triplet states that are otherwise very tricky to obtain. This dyad-enabled control over the quenching pathway allowed us to explore the P-X<sup>2+</sup> photochemistry in detail using laser flash photolysis. The P-X<sup>2+</sup> triplet undergoes annihilation producing the corresponding excited singlet, which is an extremely strong oxidant (+2.3 V <i>vs.</i> NHE) as demonstrated by halide quenching experiments. This behavior was observed for three P<sup>2+</sup> derivatives allowing us to add a novel basic structure to the very limited number of annihilators for sensitized triplet-triplet annihilation in neat water.
- Addresses
- Department of Chemistry, Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany ckerzig@uni-mainz.de.
- Autoren
- Maria-Sophie Bertrams
- Katharina Hermainski
- Jean-Marc Mörsdorf
- Joachim Ballmann
- Christoph Kerzig
- DOI
- 10.1039/d3sc01725g
- eISSN
- 2041-6539
- Externe Identifier
- PubMed Identifier: 37592982
- PubMed Central ID: PMC10430750
- Funding acknowledgements
- Deutsche Forschungsgemeinschaft: KE 2313/7-1
- Vector Stiftung:
- Deutsche Forschungsgemeinschaft: KE 2313/3-1
- Fonds der Chemischen Industrie: Liebig Fellowship
- Open access
- true
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 32
- Zeitschrift
- Chemical science
- Sprache
- eng
- Medium
- Electronic-eCollection
- Online publication date
- 2023
- Open access status
- Open Access
- Paginierung
- 8583 - 8591
- Datum der Veröffentlichung
- 2023
- Status
- Published
- Publisher licence
- CC BY-NC
- Datum der Datenerfassung
- 2023
- Titel
- Triplet quenching pathway control with molecular dyads enables the identification of a highly oxidizing annihilator class.
- Sub types
- research-article
- Journal Article
- Ausgabe der Zeitschrift
- 14
Files
https://europepmc.org/articles/PMC10430750?pdf=render
Datenquelle: Europe PubMed Central
- Abstract
- Metal complex - arene dyads typically act as more potent triplet energy donors compared to their parent metal complexes, which is frequently exploited for increasing the efficiencies of energy transfer applications. Using unexplored dicationic phosphonium-bridged ladder stilbenes (P-X2+) as quenchers, we exclusively observed photoinduced electron transfer photochemistry with commercial organic photosensitizers and photoactive metal complexes. In contrast, the corresponding pyrene dyads of the tested ruthenium complexes with the very same metal complex units efficiently sensitize the P-X2+ triplets. The long-lived and comparatively redox-inert pyrene donor triplet in the dyads thus provides an efficient access to acceptor triplet states that are otherwise very tricky to obtain. This dyad-enabled control over the quenching pathway allowed us to explore the P-X2+ photochemistry in detail using laser flash photolysis. The P-X2+ triplet undergoes annihilation producing the corresponding excited singlet, which is an extremely strong oxidant (+2.3 V vs. NHE) as demonstrated by halide quenching experiments. This behavior was observed for three P2+ derivatives allowing us to add a novel basic structure to the very limited number of annihilators for sensitized triplet-triplet annihilation in neat water.
- Date of acceptance
- 2023
- Autoren
- Maria-Sophie Bertrams
- Katharina Hermainski
- Jean-Marc Mörsdorf
- Joachim Ballmann
- Christoph Kerzig
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/37592982
- DOI
- 10.1039/d3sc01725g
- Externe Identifier
- PubMed Central ID: PMC10430750
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 32
- Zeitschrift
- Chem Sci
- Sprache
- eng
- Country
- England
- Paginierung
- 8583 - 8591
- PII
- d3sc01725g
- Datum der Veröffentlichung
- 2023
- Status
- Published online
- Titel
- Triplet quenching pathway control with molecular dyads enables the identification of a highly oxidizing annihilator class.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 14
Datenquelle: PubMed
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