Reactivity control of a photocatalytic system by changing the light intensity
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Christoph Kerzig
- Oliver S Wenger
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000502319900004&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1039/c9sc04584h
- eISSN
- 2041-6539
- Externe Identifier
- Clarivate Analytics Document Solution ID: JV4FI
- PubMed Identifier: 32206254
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 48
- Zeitschrift
- CHEMICAL SCIENCE
- Paginierung
- 11023 - 11029
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Titel
- Reactivity control of a photocatalytic system by changing the light intensity
- Sub types
- Article
- Ausgabe der Zeitschrift
- 10
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <p>By using simple optics such as a lens, switching between one- and two-photon driven reaction mechanisms became feasible, which allows the control over the main products of photochemical reactions.</p>
- Autoren
- Christoph Kerzig
- Oliver S Wenger
- DOI
- 10.1039/c9sc04584h
- eISSN
- 2041-6539
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 48
- Zeitschrift
- Chemical Science
- Sprache
- en
- Online publication date
- 2019
- Paginierung
- 11023 - 11029
- Status
- Published online
- Herausgeber
- Royal Society of Chemistry (RSC)
- Herausgeber URL
- http://dx.doi.org/10.1039/c9sc04584h
- Datum der Datenerfassung
- 2024
- Titel
- Reactivity control of a photocatalytic system by changing the light intensity
- Ausgabe der Zeitschrift
- 10
Datenquelle: Crossref
- Abstract
- We report a novel light-intensity dependent reactivity approach allowing us to selectively switch between triplet energy transfer and electron transfer reactions, or to regulate the redox potential available for challenging reductions. Simply by adjusting the light power density with an inexpensive lens while keeping all other parameters constant, we achieved control over one- and two-photon mechanisms, and successfully exploited our approach for lab-scale photoreactions using three substrate classes with excellent selectivities and good product yields. Specifically, our proof-of-concept study demonstrates that the irradiation intensity can be used to control (i) the available photoredox reactivity for reductive dehalogenations to selectively target either bromo- or chloro-substituted arenes, (ii) the photochemical <i>cis</i>-<i>trans</i> isomerization of olefins <i>versus</i> their photoreduction, and (iii) the competition between hydrogen atom abstraction and radical dimerization processes.
- Addresses
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland . Email: christoph.kerzig@unibas.ch ; Email: oliver.wenger@unibas.ch.
- Autoren
- Christoph Kerzig
- Oliver S Wenger
- DOI
- 10.1039/c9sc04584h
- eISSN
- 2041-6539
- Externe Identifier
- PubMed Identifier: 32206254
- PubMed Central ID: PMC7069242
- Funding acknowledgements
- Swiss National Science Foundation: 178760
- Swiss National Science Foundation: 200021
- Deutsche Akademie der Naturforscher Leopoldina – Nationale Akademie der Wissenschaften: LPDS 2017-11
- Swiss National Science Foundation: 200021_178760
- Open access
- true
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 48
- Zeitschrift
- Chemical science
- Sprache
- eng
- Medium
- Electronic-eCollection
- Online publication date
- 2019
- Open access status
- Open Access
- Paginierung
- 11023 - 11029
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Publisher licence
- CC BY-NC
- Datum der Datenerfassung
- 2020
- Titel
- Reactivity control of a photocatalytic system by changing the light intensity.
- Sub types
- research-article
- Journal Article
- Ausgabe der Zeitschrift
- 10
Files
https://pubs.rsc.org/en/content/articlepdf/2019/sc/c9sc04584h https://europepmc.org/articles/PMC7069242?pdf=render
Datenquelle: Europe PubMed Central
- Abstract
- We report a novel light-intensity dependent reactivity approach allowing us to selectively switch between triplet energy transfer and electron transfer reactions, or to regulate the redox potential available for challenging reductions. Simply by adjusting the light power density with an inexpensive lens while keeping all other parameters constant, we achieved control over one- and two-photon mechanisms, and successfully exploited our approach for lab-scale photoreactions using three substrate classes with excellent selectivities and good product yields. Specifically, our proof-of-concept study demonstrates that the irradiation intensity can be used to control (i) the available photoredox reactivity for reductive dehalogenations to selectively target either bromo- or chloro-substituted arenes, (ii) the photochemical cis-trans isomerization of olefins versus their photoreduction, and (iii) the competition between hydrogen atom abstraction and radical dimerization processes.
- Date of acceptance
- 2019
- Autoren
- Christoph Kerzig
- Oliver S Wenger
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/32206254
- DOI
- 10.1039/c9sc04584h
- Externe Identifier
- PubMed Central ID: PMC7069242
- ISSN
- 2041-6520
- Ausgabe der Veröffentlichung
- 48
- Zeitschrift
- Chem Sci
- Sprache
- eng
- Country
- England
- Paginierung
- 11023 - 11029
- PII
- c9sc04584h
- Datum der Veröffentlichung
- 2019
- Status
- Published online
- Titel
- Reactivity control of a photocatalytic system by changing the light intensity.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 10
Datenquelle: PubMed
- Beziehungen:
- Eigentum von