Green-Light Activation of Push-Pull Ruthenium(II) Complexes

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Johannnes Moll
  • Cui Wang
  • Ayla Paepcke
  • Christoph Foerster
  • Ute Resch-Genger
  • Stefan Lochbrunner
  • Katja Heinze
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000529648100001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/chem.202000871
eISSN
1521-3765
Externe Identifier
  • Clarivate Analytics Document Solution ID: LR3VW
  • PubMed Identifier: 32162414
ISSN
0947-6539
Ausgabe der Veröffentlichung
30
Zeitschrift
CHEMISTRY-A EUROPEAN JOURNAL
Schlüsselwörter
  • luminescence
  • photocatalysis
  • photochemistry
  • photophysics
  • ruthenium
Paginierung
6820 - 6832
Datum der Veröffentlichung
2020
Status
Published
Titel
Green-Light Activation of Push-Pull Ruthenium(II) Complexes
Sub types
  • Article
Ausgabe der Zeitschrift
26

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>Abstract</jats:title><jats:p>Synthesis, characterization, electrochemistry, and photophysics of homo‐ and heteroleptic ruthenium(II) complexes [Ru(cpmp)<jats:sub>2</jats:sub>]<jats:sup>2+</jats:sup> (<jats:bold>2<jats:sup>2+</jats:sup></jats:bold>) and [Ru(cpmp)(ddpd)]<jats:sup>2+</jats:sup> (<jats:bold>3<jats:sup>2+</jats:sup></jats:bold>) bearing the tridentate ligands 6,2’’‐carboxypyridyl‐2,2’‐methylamine‐pyridyl‐pyridine (cpmp) and <jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>’‐dimethyl‐<jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>’‐dipyridin‐2‐ylpyridine‐2,6‐diamine (ddpd) are reported. The complexes possess one (<jats:bold>3<jats:sup>2+</jats:sup></jats:bold>) or two (<jats:bold>2<jats:sup>2+</jats:sup></jats:bold>) electron‐deficient dipyridyl ketone fragments as electron‐accepting sites enabling intraligand charge transfer (ILCT), ligand‐to‐ligand charge transfer (LL'CT) and low‐energy metal‐to‐ligand charge transfer (MLCT) absorptions. The latter peak around 544 nm (green light). Complex <jats:bold>2<jats:sup>2+</jats:sup></jats:bold> shows <jats:sup>3</jats:sup>MLCT phosphorescence in the red to near‐infrared spectral region at room temperature in deaerated acetonitrile solution with an emission quantum yield of 1.3 % and a <jats:sup>3</jats:sup>MLCT lifetime of 477 ns, whereas <jats:bold>3<jats:sup>2+</jats:sup></jats:bold> is much less luminescent. This different behavior is ascribed to the energy gap law and the shape of the parasitic excited <jats:sup>3</jats:sup>MC state potential energy surface. This study highlights the importance of the excited‐state energies and geometries for the actual excited‐state dynamics. Aromatic and aliphatic amines reductively quench the excited state of <jats:bold>2<jats:sup>2+</jats:sup></jats:bold> paving the way to photocatalytic applications using low‐energy green light as exemplified with the green‐light‐sensitized thiol–ene click reaction.</jats:p>
Autoren
  • Johannnes Moll
  • Cui Wang
  • Ayla Päpcke
  • Christoph Förster
  • Ute Resch‐Genger
  • Stefan Lochbrunner
  • Katja Heinze
DOI
10.1002/chem.202000871
eISSN
1521-3765
ISSN
0947-6539
Ausgabe der Veröffentlichung
30
Zeitschrift
Chemistry – A European Journal
Sprache
en
Online publication date
2020
Paginierung
6820 - 6832
Datum der Veröffentlichung
2020
Status
Published
Herausgeber
Wiley
Herausgeber URL
http://dx.doi.org/10.1002/chem.202000871
Datum der Datenerfassung
2023
Titel
Green‐Light Activation of Push–Pull Ruthenium(II) Complexes
Ausgabe der Zeitschrift
26

Datenquelle: Crossref

Abstract
Synthesis, characterization, electrochemistry, and photophysics of homo- and heteroleptic ruthenium(II) complexes [Ru(cpmp)<sub>2</sub> ]<sup>2+</sup> (2<sup>2+</sup> ) and [Ru(cpmp)(ddpd)]<sup>2+</sup> (3<sup>2+</sup> ) bearing the tridentate ligands 6,2''-carboxypyridyl-2,2'-methylamine-pyridyl-pyridine (cpmp) and N,N'-dimethyl-N,N'-dipyridin-2-ylpyridine-2,6-diamine (ddpd) are reported. The complexes possess one (3<sup>2+</sup> ) or two (2<sup>2+</sup> ) electron-deficient dipyridyl ketone fragments as electron-accepting sites enabling intraligand charge transfer (ILCT), ligand-to-ligand charge transfer (LL'CT) and low-energy metal-to-ligand charge transfer (MLCT) absorptions. The latter peak around 544 nm (green light). Complex 2<sup>2+</sup> shows <sup>3</sup> MLCT phosphorescence in the red to near-infrared spectral region at room temperature in deaerated acetonitrile solution with an emission quantum yield of 1.3 % and a <sup>3</sup> MLCT lifetime of 477 ns, whereas 3<sup>2+</sup> is much less luminescent. This different behavior is ascribed to the energy gap law and the shape of the parasitic excited <sup>3</sup> MC state potential energy surface. This study highlights the importance of the excited-state energies and geometries for the actual excited-state dynamics. Aromatic and aliphatic amines reductively quench the excited state of 2<sup>2+</sup> paving the way to photocatalytic applications using low-energy green light as exemplified with the green-light-sensitized thiol-ene click reaction.
Addresses
  • Department of Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.
Autoren
  • Johannnes Moll
  • Cui Wang
  • Ayla Päpcke
  • Christoph Förster
  • Ute Resch-Genger
  • Stefan Lochbrunner
  • Katja Heinze
DOI
10.1002/chem.202000871
eISSN
1521-3765
Externe Identifier
  • PubMed Identifier: 32162414
  • PubMed Central ID: PMC7318647
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: HE 2778/14-1
  • Deutsche Forschungsgemeinschaft: LO 714/11-1
  • Deutsche Forschungsgemeinschaft: RE 1203/23-1
Open access
true
ISSN
0947-6539
Ausgabe der Veröffentlichung
30
Zeitschrift
Chemistry (Weinheim an der Bergstrasse, Germany)
Sprache
eng
Medium
Print-Electronic
Online publication date
2020
Open access status
Open Access
Paginierung
6820 - 6832
Datum der Veröffentlichung
2020
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2020
Titel
Green-Light Activation of Push-Pull Ruthenium(II) Complexes.
Sub types
  • research-article
  • Journal Article
Ausgabe der Zeitschrift
26

Files

https://europepmc.org/articles/PMC7318647?pdf=render

Datenquelle: Europe PubMed Central

Abstract
Synthesis, characterization, electrochemistry, and photophysics of homo- and heteroleptic ruthenium(II) complexes [Ru(cpmp)2 ]2+ (22+ ) and [Ru(cpmp)(ddpd)]2+ (32+ ) bearing the tridentate ligands 6,2''-carboxypyridyl-2,2'-methylamine-pyridyl-pyridine (cpmp) and N,N'-dimethyl-N,N'-dipyridin-2-ylpyridine-2,6-diamine (ddpd) are reported. The complexes possess one (32+ ) or two (22+ ) electron-deficient dipyridyl ketone fragments as electron-accepting sites enabling intraligand charge transfer (ILCT), ligand-to-ligand charge transfer (LL'CT) and low-energy metal-to-ligand charge transfer (MLCT) absorptions. The latter peak around 544 nm (green light). Complex 22+ shows 3 MLCT phosphorescence in the red to near-infrared spectral region at room temperature in deaerated acetonitrile solution with an emission quantum yield of 1.3 % and a 3 MLCT lifetime of 477 ns, whereas 32+ is much less luminescent. This different behavior is ascribed to the energy gap law and the shape of the parasitic excited 3 MC state potential energy surface. This study highlights the importance of the excited-state energies and geometries for the actual excited-state dynamics. Aromatic and aliphatic amines reductively quench the excited state of 22+ paving the way to photocatalytic applications using low-energy green light as exemplified with the green-light-sensitized thiol-ene click reaction.
Autoren
  • Johannnes Moll
  • Cui Wang
  • Ayla Päpcke
  • Christoph Förster
  • Ute Resch-Genger
  • Stefan Lochbrunner
  • Katja Heinze
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/32162414
DOI
10.1002/chem.202000871
eISSN
1521-3765
Externe Identifier
  • PubMed Central ID: PMC7318647
Funding acknowledgements
  • Deutsche Forschungsgemeinschaft: HE 2778/14-1
  • Deutsche Forschungsgemeinschaft: LO 714/11-1
  • Deutsche Forschungsgemeinschaft: RE 1203/23-1
Ausgabe der Veröffentlichung
30
Zeitschrift
Chemistry
Schlüsselwörter
  • luminescence
  • photocatalysis
  • photochemistry
  • photophysics
  • ruthenium
Sprache
eng
Country
Germany
Paginierung
6820 - 6832
Datum der Veröffentlichung
2020
Status
Published
Titel
Green-Light Activation of Push-Pull Ruthenium(II) Complexes.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
26

Datenquelle: PubMed

Author's licence
CC-BY
Autoren
  • Johannes Moll
  • Cui Wang
  • Ayla Päpcke
  • Christoph Förster
  • Ute Resch-Genger
  • Stefan Lochbrunner
  • Katja Heinze
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
DOI
10.1002/chem.202000871
File(s) embargoed
false
Open access
true
ISSN
1521-3765
Ausgabe der Veröffentlichung
30
Zeitschrift
Chemistry - a European journal
Schlüsselwörter
  • 540 Chemie
  • 540 Chemistry and allied sciences
Sprache
eng
Open access status
Open Access
Paginierung
6820 - 6832
Datum der Veröffentlichung
2020
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/6265
Herausgeber
Wiley-VCH
Herausgeber URL
https://doi.org/10.1002/chem.202000871
Datum der Datenerfassung
2021
Datum, an dem der Datensatz öffentlich gemacht wurde
2021
Zugang
Public
Titel
Green-light activation of push–pull ruthenium(II) complexes
Ausgabe der Zeitschrift
26

Files

moll_johannnes-green-light_ac-20210804145931073.pdf

Datenquelle: OPENSCIENCE.UB

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