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Xie Z, Liu W, Liu Y, Song X, Zheng H, Su X, Redshaw C, Feng X. Influence of Steric Effects on the Emission Behavior of Pyrene-Based Blue Luminogens. J Org Chem 2024; 89:1681-1691. [PMID: 38207100 DOI: 10.1021/acs.joc.3c02372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Pyrene-based derivatives have been widely deployed in organic luminescent materials because of their bright fluorescence, high charge carrier mobility, and facile modification. Nevertheless, the fluorescence output of conventional pyrenes is prone to quenching upon aggregation due to extensive intermolecular π-π stacking interactions. To address this issue, a set of new Y-shaped pyrene-containing luminogens are synthesized from a new bromopyrene chemical precursor, 2-hydroxyl-7-tert-butyl-1,3-bromopyrene, where the bromo and hydroxyl groups at the pyrene core can be readily modified to obtain the target products and provide great flexibility in tuning the photophysical performances. When the hydroxy group at the 2-position of pyrene was replaced by a benzyl group, the steric hindrance of the benzyl group not only efficiently inhibits the detrimental intermolecular π-π stacking interactions but also rigidifies the molecular conformation, resulting in a narrow-band blue emission. Moreover, the TPE-containing compounds 2c and 3c possessed characteristic aggregation-induced emission (AIE) properties with fluorescence quantum yields of up to 66% and 38% in the solid state, respectively. Thus, this article has methodically investigated the factors influencing the optical behavior, such as intermolecular interactions, and the steric effects of the substituent group, thereby opening up the potential to develop narrow-band pyrene-based blue emitters for OLED device applications.
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Affiliation(s)
- Zhixin Xie
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Wei Liu
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yiwei Liu
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xinyi Song
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Heng Zheng
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xiang Su
- Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull, Hull HU6 7RX, Yorkshire, U.K
| | - Xing Feng
- Guangdong University of Technology, Guangzhou 510006, P. R. China
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2
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Varghese EV, Yao CY, Chen CH. Investigation of Mechanochromic Luminescence of Pyrene-based Aggregation-Induced Emission Luminogens: Correlation between Molecular Packing and Luminescence Behavior. Chem Asian J 2024; 19:e202300910. [PMID: 37932879 DOI: 10.1002/asia.202300910] [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: 10/13/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
To better understand the correlation between molecular structure and optical properties such as aggregation-induced emission (AIE) and mechanochromic luminescence (MCL) emission, two new pyrene-based derivatives with substitutions at the 4- and 5-positions (1HH) and at the 4-, 5-, 9-, and 10-positions (2HH) were designed and synthesized. Cyano groups were introduced at the periphery of the synthesized compounds (1HCN, 1OCN, 1BCN, 2HCN, 2OCN, and 2BCN) to investigate the influence of these groups on the emission properties of the pyrene derivatives both in solution and in the solid state. The fluorescence emission performance of these compounds in water/acetone mixtures was simultaneously studied, revealing outstanding aggregation-induced emission properties. The typical shift in emission maxima to higher values was attributed to J-aggregate formation in the aggregate state. Careful investigation of the crystal structures demonstrated abundant and intense intermolecular interactions, such as C-H…π and C-H…N hydrogen bonds, contributing to the remarkable mechanochromic luminescence performance of these compounds. The MCL properties of all the compounds were investigated using powder X-ray diffraction, and the remarkable mechanochromic properties were attributed to J-aggregate phenomena in the solid state. These results provide valuable insights into the structure-property relationship of organic MCL materials, guiding the design of efficient organic MCL materials.
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Affiliation(s)
- Eldhose V Varghese
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Sanmin Dist., Kaohsiung, 80708, Taiwan
| | - Chia-Yu Yao
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Sanmin Dist., Kaohsiung, 80708, Taiwan
| | - Chia-Hsiang Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Road, Sanmin Dist., Kaohsiung, 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan
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3
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Feng X, Wang X, Redshaw C, Tang BZ. Aggregation behaviour of pyrene-based luminescent materials, from molecular design and optical properties to application. Chem Soc Rev 2023; 52:6715-6753. [PMID: 37694728 DOI: 10.1039/d3cs00251a] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Molecular aggregates are self-assembled from multiple molecules via weak intermolecular interactions, and new chemical and physical properties can emerge compared to their individual molecule. With the development of aggregate science, much research has focused on the study of the luminescence behaviour of aggregates rather than single molecules. Pyrene as a classical fluorophore has attracted great attention due to its diverse luminescence behavior depending on the solution state, molecular packing pattern as well as morphology, resulting in wide potential applications. For example, pyrene prefers to emit monomer emission in dilute solution but tends to form a dimer via π-π stacking in the aggregation state, resulting in red-shifted emission with quenched fluorescence and quantum yield. Over the past two decades, much effort has been devoted to developing novel pyrene-based fluorescent molecules and determining the luminescence mechanism for potential applications. Since the concept of "aggregation-induced emission (AIE)" was proposed by Tang et al. in 2001, aggregate science has been established, and the aggregated luminescence behaviour of pyrene-based materials has been extensively investigated. New pyrene-based emitters have been designed and synthesized not only to investigate the relationships between the molecular structure and properties and advanced applications but also to examine the effect of the aggregate morphology on their optical and electronic properties. Indeed, new aggregated pyrene-based molecules have emerged with unique properties, such as circularly polarized luminescence, excellent fluorescence and phosphorescence and electroluminescence, ultra-high mobility, etc. These properties are independent of their molecular constituents and allow for a number of cutting-edge technological applications, such as chemosensors, organic light-emitting diodes, organic field effect transistors, organic solar cells, Li-batteries, etc. Reviews published to-date have mainly concentrated on summarizing the molecular design and multi-functional applications of pyrene-based fluorophores, whereas the aggregation behaviour of pyrene-based luminescent materials has received very little attention. The majority of the multi-functional applications of pyrene molecules are not only closely related to their molecular structures, but also to the packing model they adopt in the aggregated state. In this review, we will summarize the intriguing optoelectronic properties of pyrene-based luminescent materials boosted by aggregation behaviour, and systematically establish the relationship between the molecular structure, aggregation states, and optoelectronic properties. This review will provide a new perspective for understanding the luminescence and electronic transition mechanism of pyrene-based materials and will facilitate further development of pyrene chemistry.
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Affiliation(s)
- Xing Feng
- Guangdong Provincial Key Laboratory of Information Photonics Technology, School of Material and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China.
| | - Xiaohui Wang
- Guangdong Provincial Key Laboratory of Information Photonics Technology, School of Material and Energy, Guangdong University of Technology, Guangzhou, 510006, P. R. China.
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull, Hull, Yorkshire HU6 7RX, UK.
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong 518172, China.
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4
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Short axially asymmetrically 1,3-disubstituted pyrene-based color-tunable emitters: Synthesis, characterization and optical properties. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131828] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Merz J, Dietz M, Vonhausen Y, Wöber F, Friedrich A, Sieh D, Krummenacher I, Braunschweig H, Moos M, Holzapfel M, Lambert C, Marder TB. Synthesis, Photophysical and Electronic Properties of New Red-to-NIR Emitting Donor-Acceptor Pyrene Derivatives. Chemistry 2020; 26:438-453. [PMID: 31593316 PMCID: PMC6973242 DOI: 10.1002/chem.201904219] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Indexed: 02/03/2023]
Abstract
We synthesized new pyrene derivatives with strong bis(para-methoxyphenyl)amine donors at the 2,7-positions and n-azaacene acceptors at the K-region of pyrene. The compounds possess a strong intramolecular charge transfer, leading to unusual properties such as emission in the red to NIR region (700 nm), which has not been reported before for monomeric pyrenes. Detailed photophysical studies reveal very long intrinsic lifetimes of >100 ns for the new compounds, which is typical for 2,7-substituted pyrenes but not for K-region substituted pyrenes. The incorporation of strong donors and acceptors leads to very low reduction and oxidation potentials, and spectroelectrochemical studies show that the compounds are on the borderline between localized Robin-Day class-II and delocalized Robin-Day class-III species.
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Affiliation(s)
- Julia Merz
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Maximilian Dietz
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Yvonne Vonhausen
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Frederik Wöber
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Daniel Sieh
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Michael Moos
- Institut für Organische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Marco Holzapfel
- Institut für Organische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Christoph Lambert
- Institut für Organische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with Boron (ICB)Julius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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6
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Vanga M, Lalancette RA, Jäkle F. Controlling the Optoelectronic Properties of Pyrene by Regioselective Lewis Base‐Directed Electrophilic Aromatic Borylation. Chemistry 2019; 25:10133-10140. [DOI: 10.1002/chem.201901231] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Mukundam Vanga
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
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7
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Kato SI, Kano H, Irisawa KI, Yoshikawa N, Yamamoto R, Kitamura C, Nara D, Yamanobe T, Uehara H, Nakamura Y. 2,4,5,7,9,10-Hexaethynylpyrenes: Synthesis, Properties, and Self-Assembly. Org Lett 2018; 20:7530-7534. [PMID: 30450912 DOI: 10.1021/acs.orglett.8b03290] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of 2,4,5,7,9,10-hexaethynylpyrenes was synthesized using 2,7,9,10-tetrabromopyrene-4,5-dione as the key intermediate. The effects of the position and number of the ethynyl groups on the physicochemical properties of the corresponding pyrenes were clarified by comparison with 4,5,9,10-tetraethynylpyrene and 2,7-diethynylpyrene derivatives. The prepared hexaethynylpyrenes that bear benzene moieties self-assemble via π-π stacking in solution and/or the condensed phase.
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Affiliation(s)
- Shin-Ichiro Kato
- Department of Materials Science, School of Engineering , The University of Shiga Prefecture , 2500 Hassaka-cho , Hikone , Shiga 522-8533 , Japan
| | - Haruka Kano
- Department of Materials Science, School of Engineering , The University of Shiga Prefecture , 2500 Hassaka-cho , Hikone , Shiga 522-8533 , Japan
| | - Ken-Ichi Irisawa
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Naoki Yoshikawa
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Ryuichiro Yamamoto
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Chitoshi Kitamura
- Department of Materials Science, School of Engineering , The University of Shiga Prefecture , 2500 Hassaka-cho , Hikone , Shiga 522-8533 , Japan
| | - Daiki Nara
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Takeshi Yamanobe
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Hiroki Uehara
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty of Science and Technology , Gunma University , 1-5-1 Tenjin-cho , Kiryu , Gunma 376-8515 , Japan
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8
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Dmytrejchuk AM, Jackson SN, Meudom R, Gorden JD, Merner BL. Regioselective Synthesis of Unsymmetric Tetra- and Pentasubstituted Pyrenes with a Strategy for Primary C-Alkylation at the 2-Position. J Org Chem 2018; 83:10660-10667. [PMID: 29920094 DOI: 10.1021/acs.joc.8b01491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The synthesis of 1,2,4,5- and 1,2,9,10-tetrasubstituted and 1,2,4,5,8-pentasubsutituted pyrenes has been achieved by initially functionalizing the K-region of pyrene. Bromination, acylation, and formylation reactions afford high to moderate levels of regioselectivity, which facilitate the controlled introduction of other functional groups about 4,5-dimethoxypyrene. Access to 4,5-dimethoxypyren-1-ol and 9,10-dimethoxypyren-1-ol enabled a rare, C-2 primary alkyl substitution of pyrene.
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Affiliation(s)
- Ana M Dmytrejchuk
- Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States
| | - Sydney N Jackson
- Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States
| | - Rolande Meudom
- Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States
| | - John D Gorden
- Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States
| | - Bradley L Merner
- Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States
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9
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Liu R, Ran H, Zhao Z, Yang X, Zhang J, Chen L, Sun H, Hu JY. Synthesis and Optical Properties of Donor-Acceptor-Type 1,3,5,9-Tetraarylpyrenes: Controlling Intramolecular Charge-Transfer Pathways by the Change of π-Conjugation Directions for Emission Color Modulations. ACS OMEGA 2018; 3:5866-5875. [PMID: 31458784 PMCID: PMC6641958 DOI: 10.1021/acsomega.8b00583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/07/2018] [Indexed: 06/10/2023]
Abstract
In dipolar organic π-conjugated molecules, variable photophysical properties can be realized through efficient excited-state intramolecular charge transfer (ICT), which essentially depends on the π-conjugation patterns. Herein, we report a controllable regioselective strategy for synthesis and optical properties of two donor-acceptor (DA)-type 1,3,5,9-tetraarylpyrenes (i.e., 1,3-A/5,9-D (4b) and 1,3-D/5,9-A (4c)) by covalently integrating two phenyl rings and two p-OMe/CHO-substituted phenyl units into the 2-tert-butylpyrene building block, in which the two phenyl rings substituted at the 1,3-positions act as acceptors for 4b or as donors for 4c and the two p-OMe or p-CHO-substituted phenyl moieties substituted at the K-region of 5,9-positions act as donors for 4b or as acceptors for 4c, respectively. Density functional theory calculations on their frontier molecular orbitals and UV-vis absorption of S0 → S1 transition theoretically predicted that the change of π-conjugation directions in the two DA pyrenes could be realized through a variety of substitution patterns, implying that the dissimilar ground-state and excited-state electronic structures exist in each molecule. Their single-crystal X-ray analysis reveal their highly twisted conformations that are beneficial for inhibiting the π-aggregations, which are strikingly different from the normal 1,3,5,9-tetraphenylpyrenes (4a) and related 1,3,6,8-tetraarylpyrenes. Indeed, experimental investigations on their optical properties demonstrated that the excited-state ICT pathways can be successfully controlled by the change of π-conjugation directions through the variety of substitution positions, resulting in the modulations of emission color from deep-blue to green in solution. Moreover, for the present DA pyrenes, highly fluorescent emissions with moderate-to-high quantum yields both in the thin film and in the doped poly(methyl methacrylate) film were obtained, suggesting them as promising emitting materials for the fabrication of organic light-emitting diodes.
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Affiliation(s)
- Rui Liu
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Huijuan Ran
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Zhen Zhao
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Xueli Yang
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Jiali Zhang
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Lijuan Chen
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Huaming Sun
- National
Demonstration Center for Experimental Chemistry Education, School
of Chemistry and Chemical Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Jian-Yong Hu
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
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10
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Keller SN, Sutherland TC. A comparison of optical, electrochemical and self-assembling properties of two structural isomers based on 1,6- and 1,8-pyrenedione chromophores. NEW J CHEM 2018. [DOI: 10.1039/c7nj04932c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Near-IR absorbing, self-assembling pyrene donor–acceptor chromophore with low reduction potentials.
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11
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Cann JR, Cabanetos C, Welch GC. Spectroscopic Engineering toward Near-Infrared Absorption of Materials Containing Perylene Diimide. Chempluschem 2017; 82:1359-1364. [DOI: 10.1002/cplu.201700502] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Jonathan R. Cann
- Department of Chemistry; University of Calgary; 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Clement Cabanetos
- CNRS UMR 6200; MOLTECH-Anjou; University of Angers; 2 Bd Lavoisier Angers 49045 France
| | - Gregory C. Welch
- Department of Chemistry; University of Calgary; 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
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12
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Merz J, Fink J, Friedrich A, Krummenacher I, Al Mamari HH, Lorenzen S, Haehnel M, Eichhorn A, Moos M, Holzapfel M, Braunschweig H, Lambert C, Steffen A, Ji L, Marder TB. Pyrene Molecular Orbital Shuffle-Controlling Excited State and Redox Properties by Changing the Nature of the Frontier Orbitals. Chemistry 2017; 23:13164-13180. [PMID: 28718975 DOI: 10.1002/chem.201702594] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 01/01/2023]
Abstract
We show that by judicious choice of substituents at the 2- and 7-positions of pyrene, the frontier orbital order of pyrene can be modified, giving enhanced control over the nature and properties of the photoexcited states and the redox potentials. Specifically, we introduced a julolidine-like moiety and Bmes2 (mes=2,4,6-Me3 C6 H2 ) as very strong donor (D) and acceptor (A), respectively, giving 2,7-D-π-D- and unsymmetric 2,7-D-π-A-pyrene derivatives, in which the donor destabilizes the HOMO-1 and the acceptor stabilizes the LUMO+1 of the pyrene core. Consequently, for 2,7-substituted pyrene derivatives, unusual properties are obtained. For example, very large bathochromic shifts were observed for all of our compounds, and unprecedented green light emission occurs for the D/D system. In addition, very high radiative rate constants in solution and in the solid state were recorded for the D-π-D- and D-π-A-substituted compounds. All compounds show reversible one-electron oxidations, and Jul2 Pyr exhibits a second oxidation, with the largest potential splitting (ΔE=440 mV) thus far reported for 2,7-substituted pyrenes. Spectroelectrochemical measurements confirm an unexpectedly strong coupling between the 2,7-substituents in our pyrene derivatives.
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Affiliation(s)
- Julia Merz
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Julian Fink
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Hamad H Al Mamari
- Department of Chemistry, College of Science, Sultan Qaboos University, PO Box 36, Al Khoud, 123, Muscat, Sultanate of Oman
| | - Sabine Lorenzen
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Martin Haehnel
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Antonius Eichhorn
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Michael Moos
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Marco Holzapfel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Christoph Lambert
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Andreas Steffen
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Lei Ji
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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13
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Keller SN, Bromby AD, Sutherland TC. Optical Effect of Varying Acceptors in Pyrene Donor-Acceptor-Donor Chromophores. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700630] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Samantha N. Keller
- Department of Chemistry; University of Calgary; 2500 University Drive NW T2N 1N4 Calgary Alberta Canada
| | - Ashley D. Bromby
- Department of Chemistry; University of Calgary; 2500 University Drive NW T2N 1N4 Calgary Alberta Canada
| | - Todd C. Sutherland
- Department of Chemistry; University of Calgary; 2500 University Drive NW T2N 1N4 Calgary Alberta Canada
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14
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Sasaki S, Suzuki S, Igawa K, Morokuma K, Konishi GI. The K-Region in Pyrenes as a Key Position to Activate Aggregation-Induced Emission: Effects of Introducing Highly Twisted N,N-Dimethylamines. J Org Chem 2017; 82:6865-6873. [DOI: 10.1021/acs.joc.7b00996] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shunsuke Sasaki
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Satoshi Suzuki
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Kazunobu Igawa
- Institute
for Materials Chemistry and Engineering and Department of Molecular
and Material Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | - Keiji Morokuma
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Gen-ichi Konishi
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo 152-8552, Japan
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15
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Kurata R, Ito A, Gon M, Tanaka K, Chujo Y. Diarylamino- and Diarylboryl-Substituted Donor–Acceptor Pyrene Derivatives: Influence of Substitution Pattern on Their Photophysical Properties. J Org Chem 2017; 82:5111-5121. [DOI: 10.1021/acs.joc.7b00315] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ryohei Kurata
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihiro Ito
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masayuki Gon
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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16
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Zhang S, Liu Z, Fang Q. Synthesis, Structures, and Optoelectronic Properties of Pyrene-Fused Thioxanthenes. Org Lett 2017; 19:1382-1385. [DOI: 10.1021/acs.orglett.7b00276] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shiqian Zhang
- State Key Laboratory
of Crystal
Materials, Shandong University, Jinan 250100, China
| | - Zhiqiang Liu
- State Key Laboratory
of Crystal
Materials, Shandong University, Jinan 250100, China
| | - Qi Fang
- State Key Laboratory
of Crystal
Materials, Shandong University, Jinan 250100, China
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17
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Larsen CB, van der Salm H, Shillito GE, Lucas NT, Gordon KC. Tuning the Rainbow: Systematic Modulation of Donor–Acceptor Systems through Donor Substituents and Solvent. Inorg Chem 2016; 55:8446-58. [DOI: 10.1021/acs.inorgchem.6b01039] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Holly van der Salm
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | | | - Nigel T. Lucas
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
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18
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Feng X, Hu JY, Redshaw C, Yamato T. Functionalization of Pyrene To Prepare Luminescent Materials-Typical Examples of Synthetic Methodology. Chemistry 2016; 22:11898-916. [PMID: 27388023 DOI: 10.1002/chem.201600465] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Indexed: 01/04/2023]
Abstract
Pyrene-based π-conjugated materials are considered to be an ideal organic electro-luminescence material for application in semiconductor devices, such as organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs) and organic photovoltaics (OPVs), and so forth. However, the great drawback of employing pyrene as an organic luminescence material is the formation of excimer emission, which quenches the efficiency at high concentration or in the solid-state. Thus, in order to obtain highly efficient optical devices, scientists have devoted much effort to tuning the structure of pyrene derivatives in order to realize exploitable properties by employing two strategies, 1) introducing a variety of moieties at the pyrene core, and 2) exploring effective and convenient synthetic strategies to functionalize the pyrene core. Over the past decades, our group has mainly focused on synthetic methodologies for functionalization of the pyrene core; we have found that formylation/acetylation or bromination of pyrene can selectly lead to functionalization at K-region by Lewis acid catalysis. Herein, this Minireview highlights the direct synthetic approaches (such as formylation, bromination, oxidation, and de-tert-butylation reactions, etc.) to functionalize the pyrene in order to advance research on luminescent materials for organic electronic applications. Further, this article demonstrates that the future direction of pyrene chemistry is asymmetric functionalization of pyrene for organic semiconductor applications and highlights some of the classical asymmetric pyrenes, as well as the latest breakthroughs. In addition, the photophysical properties of pyrene-based molecules are briefly reviewed. To give a current overview of the development of pyrene chemistry, the review selectively covers some of the latest reports and concepts from the period covering late 2011 to the present day.
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Affiliation(s)
- Xing Feng
- School of Printing and Packing Engineering, Beijing Institute of Graphic Communication, 1 Xinghua Avenue (Band Two), Daxing, Beijing, 102600, P.R. China. .,Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan.
| | - Jian-Yong Hu
- School of Materials Science and Engineering, Shannxi Normal University, Xi'an, 710062, Shannxi, P.R. China
| | - Carl Redshaw
- Department of Chemistry, University of Hull, Cottingham Rd, Hull, HU6 7RX, UK
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga, 840-8502, Japan.
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19
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Chen Y, Lu X, Xiang C, Ling Y, Zhou G. Charge Transfer Through Dithieno[2,3-a:3',2'-c]phenazine: Effect of Substitution Pattern on the Optoelectronic Properties of Regioisomeric Luminophores. Chem Asian J 2016; 11:874-81. [PMID: 26790136 DOI: 10.1002/asia.201501389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 01/12/2016] [Indexed: 11/10/2022]
Abstract
Two series of regioisomeric luminophores that contained a dithieno[2,3-a:3',2'-c]phenazine (DTP) unit as an electron acceptor have been designed and synthesized. To investigate the effect of substitution pattern on the optoelectronic properties of these luminophores, electron donors (N,N-dihexylaniline or N,N-dihexyl-4-vinylaniline) were incorporated at the 2,5-, 8,11-, and 9,10-positions of the DTP unit. We found that the optoelectronic properties of the regioisomeric luminophores were greatly affected by the substitution pattern: functionalization at the 8,11-positions of the DTP unit was superior to the other two substitution patterns in extending the effective π-conjugation and strengthening the intramolecular charge-transfer interactions. Moreover, the insertion of vinyl groups between the DTP and N,N-dihexylaniline units narrowed the energy band-gap for isomers 4 and 5. However, hypsochromically shifted absorption and photoluminescence maxima were observed for isomeric luminophore 6, in which electron donors were substituted at the 2,5-positions of the DTP unit. These results should facilitate greater understanding of the structure-property relationships in regioisomeric semiconductors and present a new way to design optoelectronic materials with effective substitution patterns.
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Affiliation(s)
- Yijing Chen
- Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Xuefeng Lu
- Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Chunlan Xiang
- Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Yuan Ling
- Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Gang Zhou
- Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, P. R. China.
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20
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Salonen LM, Medina DD, Carbó-Argibay E, Goesten MG, Mafra L, Guldris N, Rotter JM, Stroppa DG, Rodríguez-Abreu C. A supramolecular strategy based on molecular dipole moments for high-quality covalent organic frameworks. Chem Commun (Camb) 2016; 52:7986-9. [DOI: 10.1039/c6cc02170k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Attractive intermolecular interactions of building blocks with strong dipole moments result in a COF with high crystallinity and large surface area.
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Affiliation(s)
- Laura M. Salonen
- International Iberian Nanotechnology Laboratory (INL)
- Braga 4715-330
- Portugal
| | - Dana D. Medina
- Department of Chemistry and Center for NanoScience (CeNS)
- Ludwig-Maximilians-University Munich (LMU)
- D-81377 Munich
- Germany
| | | | - Maarten G. Goesten
- Inorganic Materials Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Luís Mafra
- CICECO – Aveiro Institute of Materials
- Department of Chemistry
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Noelia Guldris
- International Iberian Nanotechnology Laboratory (INL)
- Braga 4715-330
- Portugal
| | - Julian M. Rotter
- Department of Chemistry and Center for NanoScience (CeNS)
- Ludwig-Maximilians-University Munich (LMU)
- D-81377 Munich
- Germany
| | - Daniel G. Stroppa
- International Iberian Nanotechnology Laboratory (INL)
- Braga 4715-330
- Portugal
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21
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Kim HY, Takizawa S, Oh K. Copper-catalyzed divergent oxidative pathways of 2-naphthol derivatives: ortho-naphthoquinones versus 2-BINOLs. Org Biomol Chem 2016; 14:7191-6. [DOI: 10.1039/c6ob01183g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Divergent reaction pathways of 2-naphthol derivatives to either ortho-naphthoquinones or BINOLs have been achieved using two different Cu(ii) catalyst systems.
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Affiliation(s)
- H. Y. Kim
- Center for Metareceptome Research
- College of Pharmacy
- Chung-Ang University
- Seoul 156-756
- Republic of Korea
| | - S. Takizawa
- The Institute of Scientific and Industrial Research
- Osaka University
- Ibaraki
- Japan
| | - K. Oh
- Center for Metareceptome Research
- College of Pharmacy
- Chung-Ang University
- Seoul 156-756
- Republic of Korea
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22
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Niko Y, Sasaki S, Narushima K, Sharma DK, Vacha M, Konishi GI. 1-, 3-, 6-, and 8-Tetrasubstituted Asymmetric Pyrene Derivatives with Electron Donors and Acceptors: High Photostability and Regioisomer-Specific Photophysical Properties. J Org Chem 2015; 80:10794-805. [PMID: 26468685 DOI: 10.1021/acs.joc.5b01987] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The systematic synthesis of five 1-, 3-, 6-, and 8-tetrasubstituted asymmetric pyrenes with electron donor and acceptor moieties is presented, together with an examination of their photophysical properties. Pyrene derivative PA1, containing one formyl and three piperidyl groups, showed bright solvatochromic fluorescence from green (λem = 557 nm, ΦFL = 0.94 in hexane) to red (λem = 648 nm, ΦFL = 0.50 in methanol), suggesting potential applications for PA1 as an environmentally responsive probe. Although the synthesis of simple 1- and 3-disubstituted pyrene derivatives is considered difficult, PA13, with two formyl groups at the 1- and 3-positions and two piperidyl groups at the 6- and 8-positions, could be synthesized successfully. PA13 exhibited less pronounced solvatochromism, but displayed a narrow fluorescent band with high ΦFL in all solvents (ΦFL > 0.75). Moreover, its absorption band displayed an exceptional bathochromic shift compared to the other derivatives (e.g., λabs = 480 and 522 nm in ethanol for PA1 and PA13, respectively), suggesting that such modifications of pyrene may be quite important for the modulation of its energy gap. Additionally, all compounds exhibited exceptionally high photostability, which highlights the advantage of these new dyes and provides new insights on the design of photostable fluorophores.
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Affiliation(s)
- Yosuke Niko
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Shunsuke Sasaki
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Kaishi Narushima
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Dharmendar Kumar Sharma
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Martin Vacha
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Gen-ichi Konishi
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology , 2-12-1-H-134 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.,PRESTO Japan Science and Technology Agency , Tokyo 102-0076, Japan
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23
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Feng X, Tomiyasu H, Hu JY, Wei X, Redshaw C, Elsegood MRJ, Horsburgh L, Teat SJ, Yamato T. Regioselective Substitution at the 1,3- and 6,8-Positions of Pyrene for the Construction of Small Dipolar Molecules. J Org Chem 2015; 80:10973-8. [PMID: 26436921 DOI: 10.1021/acs.joc.5b02128] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This article presents a novel asymmetrical functionalization strategy for the construction of dipolar molecules via efficient regioselective functionalization along the Z-axis of pyrene at both the 1,3- and 6,8-positions. Three asymmetrically substituted 1,3-diphenyl-6,8-R-disubsituted pyrenes were fully characterized by X-ray crystallography, photophysical properties, electrochemistry, and density functional theory calculations.
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Affiliation(s)
- Xing Feng
- Beijing Institute of Graphic Communication , Beijing 102600, P. R. China.,Department of Applied Chemistry, Faculty of Science and Engineering, Saga University , Honjo-machi 1, Saga 840-8502, Japan
| | - Hirotsugu Tomiyasu
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University , Honjo-machi 1, Saga 840-8502, Japan
| | - Jian-Yong Hu
- School of Materials Science and Engineering, Shannxi Normal University , Xi'an, 710062 Shannxi, P. R. China
| | - Xianfu Wei
- Beijing Institute of Graphic Communication , Beijing 102600, P. R. China
| | - Carl Redshaw
- Department of Chemistry, The University of Hull , Cottingham Road, Hull, Yorkshire HU6 7RX, U.K
| | - Mark R J Elsegood
- Chemistry Department, Loughborough University , Loughborough, Leicestershire LE11 3TU, U.K
| | - Lynne Horsburgh
- Chemistry Department, Loughborough University , Loughborough, Leicestershire LE11 3TU, U.K
| | - Simon J Teat
- Advanced Light Source, Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University , Honjo-machi 1, Saga 840-8502, Japan
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24
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Murai M, Takami K, Takai K. Iridium-Catalyzed Intermolecular Dehydrogenative Silylation of Polycyclic Aromatic Compounds without Directing Groups. Chemistry 2015; 21:4566-70. [DOI: 10.1002/chem.201406508] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Indexed: 11/12/2022]
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25
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Thériault KD, Radford C, Parvez M, Heyne B, Sutherland TC. Structure–property relationship of donor–acceptor acridones – an optical, electrochemical and computational study. Phys Chem Chem Phys 2015. [DOI: 10.1039/c5cp03222a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The effect of changing acceptor strength on intramolecular charge transfer absorption and its implication towards organic materials are investigated.
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Affiliation(s)
| | - C. Radford
- Department of Chemistry
- University of Calgary
- Calgary
- Canada
| | - M. Parvez
- Department of Chemistry
- University of Calgary
- Calgary
- Canada
| | - B. Heyne
- Department of Chemistry
- University of Calgary
- Calgary
- Canada
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26
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Seechurn CCCJ, Sivakumar V, Satoskar D, Colacot TJ. Iridium-Catalyzed C–H Borylation of Heterocycles Using an Overlooked 1,10-Phenanthroline Ligand: Reinventing the Catalytic Activity by Understanding the Solvent-Assisted Neutral to Cationic Switch. Organometallics 2014. [DOI: 10.1021/om500420d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Vilvanathan Sivakumar
- Johnson Matthey Catalysis & Chiral Technologies, Plot no. 6, MIDC Industrial Estate, Taloja, Maharashtra 410208, India
| | - Deepak Satoskar
- Johnson Matthey Catalysis & Chiral Technologies, Plot no. 6, MIDC Industrial Estate, Taloja, Maharashtra 410208, India
| | - Thomas J. Colacot
- Johnson Matthey Catalysis & Chiral Technologies, 2001 Nolte Drive, West Deptford, New Jersey 08066, United States
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27
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Zhang S, Qiao X, Chen Y, Wang Y, Edkins RM, Liu Z, Li H, Fang Q. Synthesis, Structure, and Opto-electronic Properties of Regioisomeric Pyrene–Thienoacenes. Org Lett 2014; 16:342-5. [DOI: 10.1021/ol402971n] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Shiqian Zhang
- State
Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Xiaolan Qiao
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ying Chen
- State
Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yuanyuan Wang
- State
Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Robert M. Edkins
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Zhiqiang Liu
- State
Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Hongxiang Li
- Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qi Fang
- State
Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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28
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Chen W, Tan SY, Zhao Y, Zhang Q. A concise method to prepare novel fused heteroaromatic diones through double Friedel–Crafts acylation. Org Chem Front 2014. [DOI: 10.1039/c4qo00032c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different types of fused heteroaromatic diones have been successfully prepared through the concise intramolecular double Friedel–Crafts acylation strategy.
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Affiliation(s)
- Wangqiao Chen
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Si Yu Tan
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371, Singapore
| | - Yanli Zhao
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371, Singapore
| | - Qichun Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Institute for Sports Research
- Nanyang Technological University
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