Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant 3LC Emissive Character and High Photoluminescence Quantum Yields

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Tim Riesebeck
  • Maria-Sophie Bertrams
  • Sergej Stipurin
  • Kai Konowski
  • Christoph Kerzig
  • Thomas Strassner
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000861743900001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1021/acs.inorgchem.2c02141
eISSN
1520-510X
Externe Identifier
  • Clarivate Analytics Document Solution ID: 4Y8AE
  • PubMed Identifier: 36125339
ISSN
0020-1669
Zeitschrift
INORGANIC CHEMISTRY
Datum der Veröffentlichung
2022
Status
Published
Titel
Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant <SUP>3</SUP>LC Emissive Character and High Photoluminescence Quantum Yields
Sub types
  • Article
  • Early Access

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
  • Tim Riesebeck
  • Maria-Sophie Bertrams
  • Sergej Stipurin
  • Kai Konowski
  • Christoph Kerzig
  • Thomas Strassner
DOI
10.1021/acs.inorgchem.2c02141
eISSN
1520-510X
ISSN
0020-1669
Ausgabe der Veröffentlichung
39
Zeitschrift
Inorganic Chemistry
Sprache
en
Online publication date
2022
Paginierung
15499 - 15509
Datum der Veröffentlichung
2022
Status
Published
Herausgeber
American Chemical Society (ACS)
Herausgeber URL
http://dx.doi.org/10.1021/acs.inorgchem.2c02141
Datum der Datenerfassung
2023
Titel
Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant <sup>3</sup>LC Emissive Character and High Photoluminescence Quantum Yields
Ausgabe der Zeitschrift
61

Datenquelle: Crossref

Abstract
Two novel bidentate C^C*<sub>spiro</sub> cyclometalated platinum(II) complexes comprising a spiro-conjugated bifluorene ligand and different β-diketonate auxiliary ligands are synthesized and characterized. Their preparation employs a robust and elaborate synthetic protocol commencing with an <i>N</i>-heterocyclic carbene precursor. Structural characterization by means of NMR techniques and solid-state structures validate the proposed and herein presented molecular scaffolds. Photophysical studies, including laser flash photolysis methods, reveal an almost exclusively ligand-centered triplet state, governed by the C^C*<sub>spiro</sub>-NHC ligand. The high triplet energies and the long triplet lifetimes in the order of 30 μs in solution make the complexes good candidates for light-emitting diode-driven photocatalysis, as initial energy transfer experiments reveal. In-depth time-dependent density functional theory investigations are in excellent accordance with our spectroscopic findings. The title compounds are highly emissive in the bluish-green color region with quantum yields of up to 87% in solid-state measurements.
Addresses
  • Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany.
Autoren
  • Tim Riesebeck
  • Maria-Sophie Bertrams
  • Sergej Stipurin
  • Kai Konowski
  • Christoph Kerzig
  • Thomas Strassner
DOI
10.1021/acs.inorgchem.2c02141
eISSN
1520-510X
Externe Identifier
  • PubMed Identifier: 36125339
Funding acknowledgements
  • Verband der Chemischen Industrie:
Open access
false
ISSN
0020-1669
Ausgabe der Veröffentlichung
39
Zeitschrift
Inorganic chemistry
Sprache
eng
Medium
Print-Electronic
Online publication date
2022
Paginierung
15499 - 15509
Datum der Veröffentlichung
2022
Status
Published
Datum der Datenerfassung
2022
Titel
Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant <sup>3</sup>LC Emissive Character and High Photoluminescence Quantum Yields.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
61

Datenquelle: Europe PubMed Central

Abstract
Two novel bidentate C^C*spiro cyclometalated platinum(II) complexes comprising a spiro-conjugated bifluorene ligand and different β-diketonate auxiliary ligands are synthesized and characterized. Their preparation employs a robust and elaborate synthetic protocol commencing with an N-heterocyclic carbene precursor. Structural characterization by means of NMR techniques and solid-state structures validate the proposed and herein presented molecular scaffolds. Photophysical studies, including laser flash photolysis methods, reveal an almost exclusively ligand-centered triplet state, governed by the C^C*spiro-NHC ligand. The high triplet energies and the long triplet lifetimes in the order of 30 μs in solution make the complexes good candidates for light-emitting diode-driven photocatalysis, as initial energy transfer experiments reveal. In-depth time-dependent density functional theory investigations are in excellent accordance with our spectroscopic findings. The title compounds are highly emissive in the bluish-green color region with quantum yields of up to 87% in solid-state measurements.
Autoren
  • Tim Riesebeck
  • Maria-Sophie Bertrams
  • Sergej Stipurin
  • Kai Konowski
  • Christoph Kerzig
  • Thomas Strassner
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/36125339
DOI
10.1021/acs.inorgchem.2c02141
eISSN
1520-510X
Ausgabe der Veröffentlichung
39
Zeitschrift
Inorg Chem
Sprache
eng
Country
United States
Paginierung
15499 - 15509
Datum der Veröffentlichung
2022
Status
Published
Titel
Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant 3LC Emissive Character and High Photoluminescence Quantum Yields.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
61

Datenquelle: PubMed

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