Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro (fluorene) acridinone
Abstract: In this work, we prepared a series of electron donor‐acceptor systems based on spiro[fluorene‐9,7’‐dibenzo[c,h]acridine]‐5’‐one (SFDBAO). Our SFDBAOs consist of orthogonally positioned fluorenes and aromatic ketones. By fine‐tuning the substitution of electron‐donating pyrenes, the complex interplay among different excited‐state decay channels and the overall impact of solvents on these decay channels were uncovered. Placing pyrene, for example, at the aromatic ketones resulted in a profound solvatochromism in the form of a bright charge‐transfer (CT) emission spanning from yellow to red‐NIR. In contrast, a dark non‐emissive CT was noted upon pyrene substitution at the fluorenes. In apolar solvents, efficient triplet‐excited state generation was observed for all SFDBAOs. Either charge transfer was concluded to mediate the intersystem crossing (ISC) in the case of pyrene substitution or the El‐Sayed rule was applicable when lacking pyrene substitution as in the case of SFABAO. In polar solvents, charge separation is the sole decay upon pyrene substitution. Moreover, competition between ISC and CT lowered the triplet‐excited state generation in SFDBAO.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro (fluorene) acridinone ; day:20 ; month:02 ; year:2024 ; extent:12
Angewandte Chemie / International edition. International edition ; (20.02.2024) (gesamt 12)
- Creator
-
Bo, Yifan
Zhang, He
Li, Yue
Reva, Yana
Xie, Linghai
Guldi, Dirk M.
- DOI
-
10.1002/anie.202313936
- URN
-
urn:nbn:de:101:1-2024022115090019092585
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
14.08.20252025, 10:51 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Bo, Yifan
- Zhang, He
- Li, Yue
- Reva, Yana
- Xie, Linghai
- Guldi, Dirk M.
Other Objects (12)
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro (fluorene) acridinone
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro[fluorene]acridinone
Origin of the Chinese word for “cell”: an unusual but wonderful idea of a mathematician
The symbol of spread of modern Western botany into China: Chih-wu hsüeh, an unconventional translation in the late Qing dynasty
A 110-year-old wise man: Professor Libin T. Cheng, one of the founders of biochemistry and nutrition in China
Professor Ju-Chi Li, one of the pioneers and founders of modern genetics in China
Novel start codons introduce novel coding sequences in the human genomes
Electronic Interplay between Porphyrinoids and Push-Pull Chromophores
Photophysical investigations of pentacene dimers and beyond: Elucidating the mechanism of the singlet fission process
Self-Assembling Monolayers as Contamination Protection Evaluation of Adsorbed Alkylamine Films from ODACON F Emulsion
Shadow Corrosion Phenomenon – An out-of-pile Study on Electrochemical Effects
Quantitative and Qualitative Analysis of Moral Foundations in Argumentation
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro (fluorene) acridinone
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro[fluorene]acridinone
Origin of the Chinese word for “cell”: an unusual but wonderful idea of a mathematician
The symbol of spread of modern Western botany into China: Chih-wu hsüeh, an unconventional translation in the late Qing dynasty
A 110-year-old wise man: Professor Libin T. Cheng, one of the founders of biochemistry and nutrition in China
Professor Ju-Chi Li, one of the pioneers and founders of modern genetics in China
Novel start codons introduce novel coding sequences in the human genomes
Electronic Interplay between Porphyrinoids and Push-Pull Chromophores
Photophysical investigations of pentacene dimers and beyond: Elucidating the mechanism of the singlet fission process
Self-Assembling Monolayers as Contamination Protection Evaluation of Adsorbed Alkylamine Films from ODACON F Emulsion
Shadow Corrosion Phenomenon – An out-of-pile Study on Electrochemical Effects
Quantitative and Qualitative Analysis of Moral Foundations in Argumentation
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro (fluorene) acridinone
Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro[fluorene]acridinone
Origin of the Chinese word for “cell”: an unusual but wonderful idea of a mathematician
The symbol of spread of modern Western botany into China: Chih-wu hsüeh, an unconventional translation in the late Qing dynasty
A 110-year-old wise man: Professor Libin T. Cheng, one of the founders of biochemistry and nutrition in China
Professor Ju-Chi Li, one of the pioneers and founders of modern genetics in China
Novel start codons introduce novel coding sequences in the human genomes
Electronic Interplay between Porphyrinoids and Push-Pull Chromophores
Photophysical investigations of pentacene dimers and beyond: Elucidating the mechanism of the singlet fission process
Self-Assembling Monolayers as Contamination Protection Evaluation of Adsorbed Alkylamine Films from ODACON F Emulsion
Shadow Corrosion Phenomenon – An out-of-pile Study on Electrochemical Effects