1
|
Bo Y, Zhang H, Li Y, Reva Y, Xie L, Guldi DM. Tuning the Absorption, Fluorescence, Intramolecular Charge Transfer, and Intersystem Crossing in Spiro[fluorene]acridinone. Angew Chem Int Ed Engl 2024; 63:e202313936. [PMID: 38314965 DOI: 10.1002/anie.202313936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/07/2024]
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.
Collapse
Affiliation(s)
- Yifan Bo
- Department of Chemistry and Pharmacy &, Interdisciplinary Center of Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| | - He Zhang
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), Center for Molecular Systems and Organic Devices (CMSOD), Nanjing University of Posts and Telecommunications, Wenyuan Road 9, Nanjing, 210023, China
- School of Materials Science and Engineering, Anhui University, Jiulong Road 111, Hefei, 230601, China
| | - Yue Li
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), Center for Molecular Systems and Organic Devices (CMSOD), Nanjing University of Posts and Telecommunications, Wenyuan Road 9, Nanjing, 210023, China
| | - Yana Reva
- Department of Chemistry and Pharmacy &, Interdisciplinary Center of Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| | - Linghai Xie
- Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), Center for Molecular Systems and Organic Devices (CMSOD), Nanjing University of Posts and Telecommunications, Wenyuan Road 9, Nanjing, 210023, China
- School of Flexible Electronics (SoFE), Henan Institute of Flexible Electronics (HIFE), Henan University, Mingli Road 379, Zhengzhou, 450046, China
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy &, Interdisciplinary Center of Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| |
Collapse
|
2
|
Synthesis and thermal, electrochemical, photophysical properties of novel symmetric/asymmetric indolo[2,3-a]carbazole derivatives bearing different aryl substituents. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
3
|
El-Khouly ME, El-Refaey A, Nam W, Fukuzumi S, Göktuğ Ö, Durmuş M. A subphthalocyanine–pyrene dyad: electron transfer and singlet oxygen generation. Photochem Photobiol Sci 2017; 16:1512-1518. [DOI: 10.1039/c7pp00166e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Good combination! Electron transfer of the light harvesting dyad composed of the curved π-conjugation of subphthalocyanine and the planar π-conjugation of pyrene via an axial approach.
Collapse
Affiliation(s)
- Mohamed E. El-Khouly
- Department of Chemistry
- Faculty of Science
- Kafrelsheikh University
- Kafrelsheikh 33516
- Egypt
| | - Ahmed El-Refaey
- Department of Chemistry
- Faculty of Science
- Kafrelsheikh University
- Kafrelsheikh 33516
- Egypt
| | - Wonwoo Nam
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
- Faculty of Science and Engineering
| | - Özge Göktuğ
- Department of Chemistry
- Faculty of Basic Sciences
- Gebze Technical University University
- Gebze 41400
- Turkey
| | - Mahmut Durmuş
- Department of Chemistry
- Faculty of Basic Sciences
- Gebze Technical University University
- Gebze 41400
- Turkey
| |
Collapse
|
4
|
Zhang H, Tong H, Zhao Y, Yu T, Zhang P, Li J, Fan D. Synthesis, crystal structures and photoluminescence of anthracen- and pyrene-based coumarin derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:316-320. [PMID: 26056982 DOI: 10.1016/j.saa.2015.05.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 04/24/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
Two new anthracen- and pyrene-based coumarin derivatives, 3-(4-(anthracen-10-yl)phenyl)coumarin (4) and 3-(4-(pyrene-1-yl)phenyl)coumarin (5), were synthesized and characterized by FT-IR, (1)H NMR, element analysis and single crystal X-ray crystallography. The UV-vis absorption and photoluminescence spectra of these coumarin derivatives were investigated. The results show that compound 4 and 5 exhibit blue and blue-green emissions, respectively, under ultraviolet light excitation. Compared with the compound 4, the emission peak of compound 5 was bathochromically shifted by about 80 nm due to the more planar structure and larger π-conjugation.
Collapse
Affiliation(s)
- Hui Zhang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China
| | - Hao Tong
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China
| | - Yuling Zhao
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Tianzhi Yu
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China.
| | - Peng Zhang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China
| | - Jianfeng Li
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China
| | - Duowang Fan
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education), Lanzhou Jiaotong University, 88 West Anning Road, Lanzhou 730070, China
| |
Collapse
|