Photo-Chromium: Sensitizer for Visible-Light-Induced Oxidative C-H Bond FunctionalizationElectron or Energy Transfer?

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Sven Otto
  • Alexander M Nauth
  • Eugenyi Ermilov
  • Norman Scholz
  • Aleksej Friedrich
  • Ute Resch-Genger
  • Stefan Lochbrunner
  • Till Opatz
  • Katja Heinze
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000407646800001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/cptc.201700077
Externe Identifier
  • Clarivate Analytics Document Solution ID: FD6OC
ISSN
2367-0932
Ausgabe der Veröffentlichung
8
Zeitschrift
CHEMPHOTOCHEM
Schlüsselwörter
  • aminonitriles
  • chromium
  • photocatalysis
  • photophysics
  • singlet oxygen
Paginierung
344 - 349
Datum der Veröffentlichung
2017
Status
Published
Titel
Photo-Chromium: Sensitizer for Visible-Light-Induced Oxidative C-H Bond FunctionalizationElectron or Energy Transfer?
Sub types
  • Article
Ausgabe der Zeitschrift
1

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>Abstract</jats:title><jats:p>The chromium(III) sensitizer <jats:bold>[Cr(ddpd)<jats:sub>2</jats:sub>]<jats:sup>3+</jats:sup></jats:bold> (ddpd=<jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>′‐dimethyl‐<jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>′‐dipyridine‐2‐ylpyridine‐2,6‐diamine), based on an earth‐abundant metal centre, possesses a unique excited‐state potential‐energy landscape. The very large energy gap between the redox‐active and substitutionally labile <jats:sup>4</jats:sup>T<jats:sub>2</jats:sub> state and the long‐lived low‐energy <jats:sup>2</jats:sup>E spin‐flip state enables a selective, efficient sensitization of triplet dioxygen to give singlet dioxygen. Ultrafast intersystem crossing after the Franck Condon point from the <jats:sup>4</jats:sup>T<jats:sub>2</jats:sub> to the <jats:sup>2</jats:sup>E excited state within 3.5 ps precludes intermolecular electron‐transfer pathways from the ultrashort‐lived excited <jats:sup>4</jats:sup>T<jats:sub>2</jats:sub> state. This specific excited‐state reactivity enables a selective visible‐light‐induced C−H bond activation of tertiary amines with <jats:sup>1</jats:sup>O<jats:sub>2</jats:sub> and subsequent trapping with cyanide to yield α‐aminonitriles in good to excellent yields.</jats:p>
Autoren
  • Sven Otto
  • Alexander M Nauth
  • Eugenyi Ermilov
  • Norman Scholz
  • Aleksej Friedrich
  • Ute Resch‐Genger
  • Stefan Lochbrunner
  • Till Opatz
  • Katja Heinze
DOI
10.1002/cptc.201700077
eISSN
2367-0932
ISSN
2367-0932
Ausgabe der Veröffentlichung
8
Zeitschrift
ChemPhotoChem
Sprache
en
Online publication date
2017
Paginierung
344 - 349
Datum der Veröffentlichung
2017
Status
Published
Herausgeber
Wiley
Herausgeber URL
http://dx.doi.org/10.1002/cptc.201700077
Datum der Datenerfassung
2023
Titel
Photo‐Chromium: Sensitizer for Visible‐Light‐Induced Oxidative C−H Bond Functionalization—Electron or Energy Transfer?
Ausgabe der Zeitschrift
1

Datenquelle: Crossref

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