1
|
Matsuo Y, Yu CG, Nakagawa T, Okada H, Ueno H, Sun TG, Zhong YW. Reduced Knoevenagel Reaction of Acetetracenylene-1,2-dione with Acceptor Units for Luminescent Tetracene Derivatives. J Org Chem 2019; 84:2339-2345. [PMID: 30656930 DOI: 10.1021/acs.joc.8b03083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Acetetracenylene-1,2-dione reacted with 3-ethylrhodanine in the presence of piperidine and Hantzsch ester via a Knoevenagel condensation-reduction sequence to give a tetracene-rhodanine adduct. This reduced Knoevenagel product exhibited magenta luminescence with a fluorescence quantum yield of φ = 0.34 and fluorescence lifetime of τ = 13.2 ns in toluene. Electrochemical studies and charge carrier transport measurements revealed ambipolar properties with hole and electron mobilities of 5.1 × 10-7 and 1.6 × 10-4 cm2/(V s), respectively.
Collapse
Affiliation(s)
- Yutaka Matsuo
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, School of Chemistry and Materials Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China.,Department of Mechanical Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Chu-Guo Yu
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, School of Chemistry and Materials Science , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China
| | - Takafumi Nakagawa
- Department of Mechanical Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Hiroshi Okada
- Department of Mechanical Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Hiroshi Ueno
- School of Chemistry , Northeast Normal University , 5268 Renmin Street , Changchun , Jilin 130024 , China
| | - Tian-Ge Sun
- Key Laboratory of Photochemistry , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Yu-Wu Zhong
- Key Laboratory of Photochemistry , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| |
Collapse
|
2
|
Wang Y, Wang X, Zhang K, Wang X, Xin X, Fan W, Dai F, Han Y, Sun D. Solvent-induced terbium metal–organic frameworks for highly selective detection of manganese(ii) ions. Dalton Trans 2019; 48:2569-2573. [DOI: 10.1039/c9dt00006b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A pair of Tb framework isomers (UPC-36 and UPC-37) is obtained. 2D layer UPC-37 exhibits higher sensitivity and extra selectivity for the detection of Mn2+.
Collapse
Affiliation(s)
- Yutong Wang
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Xia Wang
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Kailiang Zhang
- Shandong Product Quality Inspection Research Institute
- Jinan
- P. R. China
| | - Xiaokang Wang
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Xuelian Xin
- College of Public Health & Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education
- Hebei University
- Baoding
- P. R. China
| | - Weidong Fan
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Fangna Dai
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Yinfeng Han
- Department of Chemistry and Chemical Engineering
- Taishan University Tai'an
- Shandong 271021
- P. R. China
| | - Daofeng Sun
- School of Materials Science and Engineering
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| |
Collapse
|
3
|
Korovina NV, Joy J, Feng X, Feltenberger C, Krylov AI, Bradforth SE, Thompson ME. Linker-Dependent Singlet Fission in Tetracene Dimers. J Am Chem Soc 2018; 140:10179-10190. [PMID: 30016102 DOI: 10.1021/jacs.8b04401] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Separation of triplet excitons produced by singlet fission is crucial for efficient application of singlet fission materials. While earlier works explored the first step of singlet fission, the formation of the correlated triplet pair state, the focus of recent studies has been on understanding the second step of singlet fission, the formation of independent triplets from the correlated pair state. We present the synthesis and excited-state dynamics of meta- and para-bis(ethynyltetracenyl)benzene dimers that are analogues to the ortho-bis(ethynyltetracenyl)benzene dimer reported by our groups previously. A comparison of the excited-state properties of these dimers allows us to investigate the effects of electronic conjugation and coupling on singlet fission between the ethynyltetracene units within a dimer. In the para isomer, in which the two chromophores are conjugated, the singlet exciton yields the correlated triplet pair state, from which the triplet excitons can decouple via molecular rotations. In contrast, the meta isomer in which the two chromophores are cross-coupled predominantly relaxes via radiative decay. We also report the synthesis and excited-state dynamics of two para dimers with different bridging units joining the ethynyltetracenes. The rate of singlet fission is found to be faster in the dimer with the bridging unit that has orbitals closer in energy to that of the ethynyltetracene chromophores.
Collapse
Affiliation(s)
- Nadezhda V Korovina
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Jimmy Joy
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Xintian Feng
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Cassidy Feltenberger
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Anna I Krylov
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Stephen E Bradforth
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Mark E Thompson
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| |
Collapse
|