1
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Qin L, Xie J, Wu B, Hong H, Yang S, Ma Z, Li C, Zhang G, Zhang XS, Liu K, Zhang D. Axially Chiral Nonbenzenoid Nanographene with Second Harmonic Generation Property. J Am Chem Soc 2024; 146:12206-12214. [PMID: 38637324 DOI: 10.1021/jacs.4c03007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Chiral nanographenes (NGs) have garnered significant interest as optoelectronic materials in recent years. While helically chiral NGs have been extensively studied, axially chiral NGs have only witnessed limited examples, with no prior reports of axially chiral nonbenzenoid NGs. Herein we report an axially chiral nonbenzenoid nanographene featuring six pentagons and four heptagons. This compound, denoted as 2, was efficiently synthesized via an efficient Pd-catalyzed aryl silane homocoupling reaction. The presence of two bulky 3,5-di-tert-butylphenyl groups around the axis connecting the two nonbenzenoid PAH (AHR) segments endows 2 with atropisomeric chirality and high racemization energy barrier, effectively preventing racemization of both R- and S-enantiomers at room temperature. Optically pure R-2 and S-2 were obtained by chiral HPLC separation, and they exhibit circular dichroism (CD) activity at wavelengths up to 660 nm, one of the longest wavelengths with CD responses reported for the chiral NGs. Interestingly, racemic 2 forms a homoconfiguration π-dimer in the crystal lattice, belonging to the I222 chiral space group. Consequently, this unique structure renders crystals of 2 with a second harmonic generation (SHG) response, distinguishing it from all the reported axially chiral benzenoid NGs. Moreover, R-2 and S-2 also exhibit SHG-CD properties.
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Affiliation(s)
- Liyuan Qin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jin Xie
- School of Physics, Peking University, Beijing 100871, P. R. China
| | - Botao Wu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Hao Hong
- School of Physics, Peking University, Beijing 100871, P. R. China
| | - Suyu Yang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Zhuangzhuang Ma
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan 450000, P. R. China
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Guanxin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xi-Sha Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaihui Liu
- School of Physics, Peking University, Beijing 100871, P. R. China
| | - Deqing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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2
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Hatakenaka R, Nishikawa N, Mikata Y, Aoyama H, Yamashita K, Shiota Y, Yoshizawa K, Kawasaki Y, Tomooka K, Kamijo S, Tani F, Murafuji T. Efficient Synthesis and Structural Analysis of Chiral 4,4'-Biazulene. Chemistry 2024; 30:e202400098. [PMID: 38376431 DOI: 10.1002/chem.202400098] [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: 01/09/2024] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 02/21/2024]
Abstract
4,4'-Biazulene is a potentially attractive key component of an axially chiral biaryl compound, however, its structure and properties have not been clarified owing to the lack of its efficient synthesis. We report a breakthrough in the reliable synthesis of 4,4'-biazulene, which is achieved by the access to azulen-4-ylboronic acid pinacol ester and 4-iodoazulene as novel key synthetic intermediates for the Suzuki-Miyaura cross-coupling reaction. The X-ray crystallographic analysis of 4,4'-biazulene confirmed its axial chirality. The enantiomers of 4,4'-biazulene were successfully resolved by HPLC on the chiral stationary phase column. The kinetic experiments and DFT calculations indicate that the racemization energy barrier of 4,4'-biazulene is comparable to that of 1,1'-binaphthyl.
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Affiliation(s)
- Ryoji Hatakenaka
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Nanami Nishikawa
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Yuji Mikata
- Laboratory for Molecular & Functional Design, Department of Engineering, Nara Women's University, Nara, 630-8506, Japan
| | - Hiroki Aoyama
- Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kohsuke Yamashita
- Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuuya Kawasaki
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
| | - Katsuhiko Tomooka
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
| | - Shin Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Fumito Tani
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
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3
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Fujishiro K, Morinaka Y, Ono Y, Tanaka T, Scott LT, Ito H, Itami K. Lithium-Mediated Mechanochemical Cyclodehydrogenation. J Am Chem Soc 2023; 145:8163-8175. [PMID: 37011146 DOI: 10.1021/jacs.3c01185] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Cyclodehydrogenation is an essential synthetic method for the preparation of polycyclic aromatic hydrocarbons, polycyclic heteroaromatic compounds, and nanographenes. Among the many examples, anionic cyclodehydrogenation using potassium(0) has attracted synthetic chemists because of its irreplaceable reactivity and utility in obtaining rylene structures from binaphthyl derivatives. However, existing methods are difficult to use in terms of practicality, pyrophoricity, and lack of scalability and applicability. Herein, we report the development of a lithium(0)-mediated mechanochemical anionic cyclodehydrogenation reaction for the first time. This reaction could be easily performed using a conventional and easy-to-handle lithium(0) wire at room temperature, even under air, and the reaction of 1,1'-binaphthyl is complete within 30 min to afford perylene in 94% yield. Using this novel and user-friendly protocol, we investigated substrate scope, reaction mechanism, and gram-scale synthesis. As a result, remarkable applicability and practicality over previous methods, as well as limitations, were comprehensively studied by computational studies and nuclear magnetic resonance analysis. Furthermore, we demonstrated two-, three-, and five-fold cyclodehydrogenations for the synthesis of novel nanographenes. In particular, quinterrylene ([5]rylene or pentarylene), the longest nonsubstituted molecular rylene, was synthesized for the first time.
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Affiliation(s)
- Kanna Fujishiro
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Yuta Morinaka
- Tokyo Research Center, Organic Materials Research Laboratory, Tosoh Corporation, 2743-1 Hayakawa, Ayase, Kanagawa 252-1123, Japan
| | - Yohei Ono
- Tokyo Research Center, Organic Materials Research Laboratory, Tosoh Corporation, 2743-1 Hayakawa, Ayase, Kanagawa 252-1123, Japan
| | - Tsuyoshi Tanaka
- Tosoh Corporation, 3-8-2 Shiba, Minato-ku, Tokyo 105-8623, Japan
| | - Lawrence T Scott
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
| | - Hideto Ito
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 464-8602, Japan
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4
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Xu X, Gunasekaran S, Renken S, Ripani L, Schollmeyer D, Kim W, Marcaccio M, Musser A, Narita A. Synthesis and Characterizations of 5,5'-Bibenzo[rst]pentaphene with Axial Chirality and Symmetry-Breaking Charge Transfer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200004. [PMID: 35156332 PMCID: PMC9259715 DOI: 10.1002/advs.202200004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/23/2022] [Indexed: 05/31/2023]
Abstract
Exploration of novel biaryls consisting of two polycyclic aromatic hydrocarbon (PAH) units can be an important strategy toward further developments of organic materials with unique properties. In this study, 5,5'-bibenzo[rst]pentaphene (BBPP) with two benzo[rst]pentaphene (BPP) units is synthesized in an efficient and versatile approach, and its structure is unambiguously elucidated by X-ray crystallography. BBPP exhibits axial chirality, and the (M)- and (P)-enantiomers are resolved by chiral high-performance liquid chromatography and studied by circular dichroism spectroscopy. These enantiomers have a relatively high isomerization barrier of 43.6 kcal mol-1 calculated by density functional theory. The monomer BPP and dimer BBPP are characterized by UV-vis absorption and fluorescence spectroscopy, cyclic voltammetry, and femtosecond transient absorption spectroscopy. The results indicate that both BPP and BBPP fluoresce from a formally dark S1 electronic state that is enabled by Herzberg-Teller intensity borrowing from a neighboring bright S2 state. While BPP exhibits a relatively low photoluminescence quantum yield (PLQY), BBPP exhibits a significantly enhanced PLQY due to a greater S2 intensity borrowing. Moreover, symmetry-breaking charge transfer in BBPP is demonstrated by spectroscopic investigations in solvents of different polarity. This suggests high potential for singlet fission in such π-extended biaryls through appropriate molecular design.
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Affiliation(s)
- Xiushang Xu
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
- Organic and Carbon Nanomaterials UnitOkinawa Institute of Science and Technology Graduate University1919‐1 Tancha, Onna‐sonKunigami‐gunOkinawa904‐0495Japan
| | - Suman Gunasekaran
- Department of Chemistry & Chemical BiologyCornell UniversityIthacaNY14853USA
| | - Scott Renken
- Department of Chemistry & Chemical BiologyCornell UniversityIthacaNY14853USA
| | - Lorenzo Ripani
- Dipartimento di Chimica “Giacomo Ciamician”Università di Bolognavia Selmi 2Bologna40126Italy
| | - Dieter Schollmeyer
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–14Mainz55128Germany
| | - Woojae Kim
- Department of Chemistry & Chemical BiologyCornell UniversityIthacaNY14853USA
| | - Massimo Marcaccio
- Dipartimento di Chimica “Giacomo Ciamician”Università di Bolognavia Selmi 2Bologna40126Italy
| | - Andrew Musser
- Department of Chemistry & Chemical BiologyCornell UniversityIthacaNY14853USA
| | - Akimitsu Narita
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
- Organic and Carbon Nanomaterials UnitOkinawa Institute of Science and Technology Graduate University1919‐1 Tancha, Onna‐sonKunigami‐gunOkinawa904‐0495Japan
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5
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Borioni J, Baumgartner MT, Puiatti M, Jimenez LB. 1-Substituted Perylene Derivatives by Anionic Cyclodehydrogenation: Analysis of the Reaction Mechanism. ACS OMEGA 2022; 7:21860-21867. [PMID: 35785287 PMCID: PMC9245103 DOI: 10.1021/acsomega.2c02017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Perylene derivatives constitute a promising class of compounds with technological applications mainly due to their optoelectronic properties. One mechanism proposed to synthesize them, starting from binaphthyl derivatives, is anionic cyclodehydrogenation (under reductive conditions). However, the scope of this reaction is limited. In the present study, we report a theoretical and experimental analysis of this particular reaction mechanism for its use in the synthesis of 1-substituted perylenes. Different substituents at position 2 of 1,1'-binaphthalene were evaluated: -OCH3, -OSi(CH3)2C(CH3)3, and -N(CH3)2. Based on density functional theory (DFT) calculations on the proposed mechanism, we suggest that the cyclization takes place from binaphthyl dianion instead of its radical anion. This dianion has an open-shell diradical nature, and this could be the species that was detected by EPR in previous studies. The O-substituted derivatives could not afford the perylene derivatives since their radical anions fragment and the necessary binaphthyl dianion could not be formed. On the other hand, 49% of N,N-dimethylperylen-1-amine was obtained starting from the N-substituted 2-binapthyl derivative as a substrate, employing a simpler experimental methodology.
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6
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Advances in circularly polarized luminescent materials based on axially chiral compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2022. [DOI: 10.1016/j.jphotochemrev.2022.100500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Nishida JI, Matsuno K, Kawase T. Synthesis and photophysical and electrochemical study of 1,3,6,8‐tetraarylsubstituted X‐shaped phenanthrene derivatives. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jun-ichi Nishida
- University of Hyogo Department of Materials Science and Chemistry 2167 Shosha 671-2280 Himeji JAPAN
| | - Kouhei Matsuno
- University of Hyogo: Hyogo Kenritsu Daigaku Department of Applied Chemistry JAPAN
| | - Takeshi Kawase
- University of Hyogo: Hyogo Kenritsu Daigaku Department of Applied Chemistry 2167 Shosha 671-2280 Himeji JAPAN
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8
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Maeda C, Nomoto S, Akiyama K, Tanaka T, Ema T. Facile Synthesis of Azahelicenes and Diaza[8]circulenes through the Intramolecular Scholl Reaction. Chemistry 2021; 27:15699-15705. [PMID: 34449114 DOI: 10.1002/chem.202102269] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/07/2022]
Abstract
Carbazole-based aza[7]helicenes and hetero[9]helicenes were successfully obtained via the intramolecular Scholl reaction of 3,6-bis(biphenyl-2-yl)carbazole congeners, while the reaction of 3,6-bis(naphthylphenyl)-appended carbazole gave a triple helicene via an unexpected simultaneous double aryl rearrangement. DFT calculations suggested that the rearrangement proceeded via an arenium cation intermediate. In addition, the reaction of methoxy-appended substrate gave an azahepta[8]circulene via the concurrent C-C bond formation. These helical dyes showed circularly polarized luminescence. The azahepta[8]circulene was further transformed into deeply saddle-distorted dibenzodiaza[8]circulenes as the first example of its solution-based synthesis and unambiguous structural determination.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Shuichi Nomoto
- Division of Applied Chemistry Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Koki Akiyama
- Division of Applied Chemistry Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
| | - Takayuki Tanaka
- Department of Chemistry Graduate School of Science, Kyoto University Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tadashi Ema
- Division of Applied Chemistry Graduate School of Natural Science and Technology, Okayama University Tsushima, Okayama, 700-8530, Japan
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9
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Kitahara M, Mishima K, Hara N, Shizuma M, Kanesaka A, Nishikawa H, Imai Y. Circularly Polarized Luminescence from π‐Conjugated Chiral Perylene Diimide Luminophores: The Bay Position Effect. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maho Kitahara
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Kohei Mishima
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Nobuyuki Hara
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
| | - Motohiro Shizuma
- Department of Biochemistry Osaka Research Institute of Industrial Science and Technology 1-6-50 Morinomiya, Joto-ku Osaka 536-8553 Japan
| | - Aoba Kanesaka
- Graduate School of Science and Engineering Ibaraki University 2-1-1 Bunkyo Mito Ibaraki 310-8512 Japan
| | - Hiroyuki Nishikawa
- Graduate School of Science and Engineering Ibaraki University 2-1-1 Bunkyo Mito Ibaraki 310-8512 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka Osaka 577-8502 Japan
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10
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Savary D, Baudoin O. Enantioselective Pd
0
‐Catalyzed C(sp
2
)–H Arylation for the Synthesis of Chiral Warped Molecules. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David Savary
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
| | - Olivier Baudoin
- Department of Chemistry University of Basel St. Johanns-Ring 19 4056 Basel Switzerland
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11
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Savary D, Baudoin O. Enantioselective Pd 0 -Catalyzed C(sp 2 )-H Arylation for the Synthesis of Chiral Warped Molecules. Angew Chem Int Ed Engl 2021; 60:5136-5140. [PMID: 33245173 DOI: 10.1002/anie.202013303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/17/2020] [Indexed: 01/01/2023]
Abstract
C-H activation-based ring-forming methods are a powerful approach for the construction of complex molecular architectures, especially those containing a congested stereocenter. Therefore, this strategy seems perfectly suited to address the synthesis of chiral polycyclic aromatic hydrocarbons (PAHs) and bowl-shaped molecules, which are important target molecules in the field of organic electronic materials. Herein, we describe an enantioselective Pd0 -catalyzed C(sp2 )-H arylation protocol for the synthesis of chiral fluoradenes and other warped molecules, which could serve to the bottom-up construction of chiral PAHs. The current approach relies on the use of chiral bifunctional phosphine-carboxylate ligands and delivers diverse polycyclic compounds in high yield and with good to excellent enantioselectivity. The chiroptical properties of the obtained products were investigated, and some of them were found to have a strong ellipticity and an emission band located in the visible region.
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Affiliation(s)
- David Savary
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Olivier Baudoin
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
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12
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Maeda C, Nomoto S, Takaishi K, Ema T. Aggregation-Induced Circularly Polarized Luminescence from Boron Complexes with a Carbazolyl Schiff Base. Chemistry 2020; 26:13016-13021. [PMID: 32297393 DOI: 10.1002/chem.202001463] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Indexed: 12/21/2022]
Abstract
A variety of carbazolyl-appended Schiff bases were readily synthesized from 1-formylcarbazoles and aniline derivatives. Boron complexation of the resulting ligands allowed for facile preparation of new carbazole-based BODIPY analogues showing solid-state fluorescence. Furthermore, some dyes were converted into chiral compounds through the Et2 AlCl-mediated incorporation of a binaphthyl unit. The chiral dyes showed aggregation-induced fluorescence and circularly polarized luminescence (CPL) with the ΦF and glum of up to 0.22 and -3.5×10-3 , respectively, in the solid state. The solid-state fluorescence and CPL were well characterized by the crystal packing analyses and DFT calculations.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Shuichi Nomoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
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13
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Hara N, Shizuma M, Harada T, Imai Y. Inter- and intramolecular excimer circularly polarised luminescence of planar chiral paracyclophane-pyrene luminophores. RSC Adv 2020; 10:11335-11338. [PMID: 35495310 PMCID: PMC9050457 DOI: 10.1039/d0ra01552k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/06/2020] [Indexed: 01/18/2023] Open
Abstract
Two types of planar chiral [2,2]paracyclophane-pyrene luminophores (1 and 2) with different binding positions of the fluorescent pyrene units were synthesised. (R)/(S)-1 with 1-pyrene units exhibited green intermolecular excimer circularly polarised luminescence (CPL) at 530 nm in the KBr-pellet, but exhibited no CPL signal in dilute CHCl3 solution. In contrast, (R)/(S)-2 with 2-pyrene units exhibited a blue intramolecular excimer CPL at 450 nm in CHCl3 solution. This is the first example of using the binding position of pyrene and the external environment to tune the type (inter- or intramolecular) and chiroptical sign of excimer CPL.
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Affiliation(s)
- Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Motohiro Shizuma
- Department of Biochemistry, Osaka Research Institute of Industrial Science and Technology 1-6-50 Morinomiya, Joto-ku Osaka 536-8553 Japan
| | - Takunori Harada
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University Dannoharu, 700 Oita City 870-1192 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
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14
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Maeda C, Nagahata K, Shirakawa T, Ema T. Azahelicene‐Fused BODIPY Analogues Showing Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001186] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University Tsushima Okayama 700-8530 Japan
| | - Keiji Nagahata
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University Tsushima Okayama 700-8530 Japan
| | - Takuma Shirakawa
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University Tsushima Okayama 700-8530 Japan
| | - Tadashi Ema
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University Tsushima Okayama 700-8530 Japan
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15
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Maeda C, Nagahata K, Shirakawa T, Ema T. Azahelicene-Fused BODIPY Analogues Showing Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2020; 59:7813-7817. [PMID: 32107825 DOI: 10.1002/anie.202001186] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/18/2020] [Indexed: 12/23/2022]
Abstract
Helical carbazole-based BODIPY analogues were readily synthesized via aza[7]helicenes. The structures of azahelicene-incorporated BF2 dyes were elucidated by x-ray diffraction analysis. DFT calculations revealed that the π-conjugated system expanded from the helicene moiety to the BODIPY framework. The azahelicene-fused boron complexes showed the Cotton effects and the circularly polarized luminescence (CPL) in the visible region. Furthermore, an axially chiral binaphthyl group was attached to the helically chiral dyes, which enhanced the chiroptical properties.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Keiji Nagahata
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Takuma Shirakawa
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
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Maeda C, Suka K, Nagahata K, Takaishi K, Ema T. Synthesis and Chiroptical Properties of Chiral Carbazole-Based BODIPYs. Chemistry 2020; 26:4261-4268. [PMID: 31793681 DOI: 10.1002/chem.201904954] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/02/2019] [Indexed: 12/22/2022]
Abstract
A series of carbazole-based boron dipyrromethenes (BODIPYs) 2 a-g bearing binaphthyl units have been synthesized by the Et2 AlCl-mediated reaction of the corresponding BODIPY difluorides 1 a-g with 1,1'-binaphthalene-2,2'-diol. Substituents such as halogen, nitrile, and amino groups were tolerated under the reaction conditions, and the reaction of the phenylethynyl-substituted 1 h gave (R,R)-3 h bearing two binaphthyl units. The chiroptical properties of these dyes with different substituents were investigated by UV/Vis, CD, fluorescence, and circularly polarized luminescence (CPL) spectroscopy. The CD spectra showed Cotton effects in the absorption region of the BODIPY moieties. In addition, they showed CPL both in solution and in the solid state. Interestingly, several dyes recorded higher glum values in the solid state, probably due to intermolecular interactions. Because (R,R)-3 h recorded relatively low glum values, the diastereomer (R,S)-3 h was prepared. The (R,S) diastereomer showed intense CPL, which suggests a synergetic effect of the two binaphthyl groups. Finally, chiral carbazole-based BODIPY dimers have been synthesized for the first time and their chiroptical properties were investigated. They showed redshifted fluorescence and CPL, which reached the near-IR (NIR) region in the solid state.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Keita Suka
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Keiji Nagahata
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
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17
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Takano H, Shiozawa N, Imai Y, Kanyiva KS, Shibata T. Catalytic Enantioselective Synthesis of Axially Chiral Polycyclic Aromatic Hydrocarbons (PAHs) via Regioselective C–C Bond Activation of Biphenylenes. J Am Chem Soc 2020; 142:4714-4722. [DOI: 10.1021/jacs.9b12205] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hideaki Takano
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Natsumi Shiozawa
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577−8502, Japan
| | - Kyalo Stephen Kanyiva
- Global Center of Science and Engineering, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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18
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Zhou Z, Kawade RK, Wei Z, Kuriakose F, Üngör Ö, Jo M, Shatruk M, Gershoni‐Poranne R, Petrukhina MA, Alabugin IV. Negative Charge as a Lens for Concentrating Antiaromaticity: Using a Pentagonal “Defect” and Helicene Strain for Cyclizations. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911319] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Zheng Zhou
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Rahul Kisan Kawade
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Zheng Wei
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Febin Kuriakose
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Ökten Üngör
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Minyoung Jo
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | | | - Marina A. Petrukhina
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
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19
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Zhou Z, Kawade RK, Wei Z, Kuriakose F, Üngör Ö, Jo M, Shatruk M, Gershoni‐Poranne R, Petrukhina MA, Alabugin IV. Negative Charge as a Lens for Concentrating Antiaromaticity: Using a Pentagonal “Defect” and Helicene Strain for Cyclizations. Angew Chem Int Ed Engl 2019; 59:1256-1262. [DOI: 10.1002/anie.201911319] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Zheng Zhou
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Rahul Kisan Kawade
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Zheng Wei
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Febin Kuriakose
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Ökten Üngör
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Minyoung Jo
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
| | | | - Marina A. Petrukhina
- Department of Chemistry University at Albany State University of New York Albany NY 12222 USA
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306-4390 USA
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20
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Hara N, Okuda K, Shizuma M, Tajima N, Imai Y. Control of Circularly Polarised Luminescence Using a Suitable Wired Structure Connecting a Binaphthyl with Two Pyrenes. ChemistrySelect 2019. [DOI: 10.1002/slct.201902176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nobuyuki Hara
- Department of Applied ChemistryFaculty of Science and EngineeringKindai University, 3–4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Koji Okuda
- Department of Applied ChemistryFaculty of Science and EngineeringKindai University, 3–4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Motohiro Shizuma
- Department of BiochemistryOsaka Research Institute of Industrial Science and Technology, 1–6-50 Morinomiya, Joto-ku Osaka 536–8553 Japan
| | - Nobuo Tajima
- Computational Materials Science CenterNational Institute for Materials Science 1–2-1 Sengen, Tsukuba Ibaraki 305–0047 Japan
| | - Yoshitane Imai
- Department of Applied ChemistryFaculty of Science and EngineeringKindai University, 3–4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
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21
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Watanabe K, Taniguchi A, Kaji D, Hara N, Hosoya T, Kanesaka A, Harada T, Nishikawa H, Imai Y. Non-classical control of solid-state aggregation-induced enhanced circularly polarized luminescence in chiral perylene diimides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Maeda C, Nagahata K, Takaishi K, Ema T. Synthesis of chiral carbazole-based BODIPYs showing circularly polarized luminescence. Chem Commun (Camb) 2019; 55:3136-3139. [PMID: 30794277 DOI: 10.1039/c9cc00894b] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Chiral carbazole-based BODIPYs with a binaphthyl unit were synthesized via an Al-mediated reaction. Et2AlCl was found to be a convenient reagent for the reaction to give the chiral BODIPYs in high yields. It has been shown for the first time that these chiral carbazole-based BODIPYs show circularly polarized luminescence (CPL) both in solution and in the solid state.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
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23
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Taniguchi A, Kaji D, Hara N, Murata R, Akiyama S, Harada T, Sudo A, Nishikawa H, Imai Y. Solid-state AIEnh-circularly polarised luminescence of chiral perylene diimide fluorophores. RSC Adv 2019; 9:1976-1981. [PMID: 35516153 PMCID: PMC9059715 DOI: 10.1039/c8ra09785b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 12/23/2018] [Indexed: 11/21/2022] Open
Abstract
Chiral N,N′-bis(1-phenylethyl)perylene-3,4,9,10-tetracarboxylic acid diimide (BPP) exhibits solid-state aggregation-induced enhanced circularly polarized luminescence (AIEnh-CPL) in KBr, PMMA, and myo-IPU matrices..
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Affiliation(s)
- Ayano Taniguchi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
| | - Daiki Kaji
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
| | - Nobuyuki Hara
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
| | - Ryosuke Murata
- Graduate School of Science and Engineering
- Ibaraki University
- Mito
- Japan
| | - Shogo Akiyama
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
| | - Takunori Harada
- Department of Integrated Science and Technology
- Faculty of Science and Technology
- Oita University
- Oita City 870-1192
- Japan
| | - Atsushi Sudo
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
| | | | - Yoshitane Imai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka
- Japan
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24
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Katakami C, Kamo S, Torii A, Hara N, Imai Y, Taniguchi T, Monde K, Okabayashi Y, Hosokai T, Kuramochi K, Tsubaki K. Synthesis and Photochemical Properties of Axially Chiral Bis(dinaphthofuran). J Org Chem 2018; 83:14610-14616. [PMID: 30376330 DOI: 10.1021/acs.joc.8b02424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Both enantiomers of axially chiral bis(dinaphthofuran) were prepared in only two steps from 1'-hydroxy-4'-methoxy-2,2'-binaphthalenyl-1,4-dione, followed by optical resolution via high-performance liquid chromatography (HPLC) using a chiral stationary phase (CSP). The absolute configurations were determined by comparison of experimental and calculated vibrational circular dichroism (VCD) spectra. Synthetic bis(dinaphthofuran) exhibited a broad and unstructured emission derived from an intramolecular excimer in both solution and solid state. The methylene bridge brings both chromophores close to each other and induces significant changes in the photophysical behavior. Chiral bis(dinaphthofuran) displayed a bathochromic shift in emission, as compared to the racemic mixture in the solid state. Furthermore, the compounds showed high circularly polarized luminescence (CPL) with a dissymmetry factor ( glum) of 10-3 at 405 nm upon excitation at 265 nm in a methanol solution. This compound serves as a model for the design and synthesis of organic materials having CPL activity.
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Affiliation(s)
- Chiaki Katakami
- Graduate School for Life and Environmental Sciences , Kyoto Prefectural University , 1-5 Shimogamo Hangi-cho , Sakyo-ku, Kyoto 606-8522 , Japan
| | - Shogo Kamo
- Graduate School for Life and Environmental Sciences , Kyoto Prefectural University , 1-5 Shimogamo Hangi-cho , Sakyo-ku, Kyoto 606-8522 , Japan
- Department of Applied Biological Science, Faculty of Science and Technology , Tokyo University of Science , 2641 Yamazaki , Noda, Chiba 278-8510 , Japan
| | - Ayame Torii
- Graduate School for Life and Environmental Sciences , Kyoto Prefectural University , 1-5 Shimogamo Hangi-cho , Sakyo-ku, Kyoto 606-8522 , Japan
| | - Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering , Kindai University , 3-4-1 Kowakae , Higashi-Osaka, Osaka 577-8502 , Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering , Kindai University , 3-4-1 Kowakae , Higashi-Osaka, Osaka 577-8502 , Japan
| | - Tohru Taniguchi
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science , Hokkaido University , Kita 21 Nishi 11 , Sapporo 001-0021 , Japan
| | - Kenji Monde
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science , Hokkaido University , Kita 21 Nishi 11 , Sapporo 001-0021 , Japan
| | - Yusuke Okabayashi
- National Metrology Institute of Japan , National Institute of Advanced Industrial Science and Technology (AIST) , 1-1-1 Umezono , Tsukuba 305-8560 , Japan
| | - Takuya Hosokai
- National Metrology Institute of Japan , National Institute of Advanced Industrial Science and Technology (AIST) , 1-1-1 Umezono , Tsukuba 305-8560 , Japan
| | - Kouji Kuramochi
- Department of Applied Biological Science, Faculty of Science and Technology , Tokyo University of Science , 2641 Yamazaki , Noda, Chiba 278-8510 , Japan
| | - Kazunori Tsubaki
- Graduate School for Life and Environmental Sciences , Kyoto Prefectural University , 1-5 Shimogamo Hangi-cho , Sakyo-ku, Kyoto 606-8522 , Japan
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25
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Da LG, He J, Hu LF. DFT study on the structure and racemization mechanism of 2-amino-2′-hydroxy-1,1′-binaphthyl. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Liang-Guo Da
- School of Earth and Environment; Anhui University of Science and Technology; Huainan China
- School of Chemistry and Materials Engineering; Huainan Normal University; Huainan China
| | - Jie He
- School of Chemical Engineering; Anhui University of Science and Technology; Huainan China
| | - Li-Fang Hu
- School of Chemical Engineering; Anhui University of Science and Technology; Huainan China
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26
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Hara N, Yanai M, Kaji D, Shizuma M, Tajima N, Fujiki M, Imai Y. A Pivotal Biaryl Rotamer Bearing Two Floppy Pyrenes that Exhibits Cryptochiral Characteristics in the Ground State. ChemistrySelect 2018. [DOI: 10.1002/slct.201801770] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nobuyuki Hara
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University, 3-4-1 Kowakae, Higashi-Osaka; Osaka 577-8502 Japan
| | - Masaki Yanai
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University, 3-4-1 Kowakae, Higashi-Osaka; Osaka 577-8502 Japan
| | - Daiki Kaji
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University, 3-4-1 Kowakae, Higashi-Osaka; Osaka 577-8502 Japan
| | - Motohiro Shizuma
- Department of Biochemistry; Osaka Research Institute of Industrial Science and Technology, 1-6-50 Morinomiya, Joto-ku; Osaka 536-8553 Japan
| | - Nobuo Tajima
- Computational Materials Science Center; National Institute for Materials Science 1-2-1 Sengen, Tsukuba; Ibaraki 305-0047 Japan
| | - Michiya Fujiki
- Graduate School of Materials Science; Nara Institute of Science and Technology, Takayama, Ikoma; Nara 630-0101 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University, 3-4-1 Kowakae, Higashi-Osaka; Osaka 577-8502 Japan
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27
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Takaishi K, Ema T. Control of Chiroptical Properties of Axially Chiral Naphthalene Oligomers. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kazuto Takaishi
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
| | - Tadashi Ema
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
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28
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Hara N, Kaji D, Okuda K, Shizuma M, Tajima N, Imai Y. Substituent-induced Preservation/Inversion of the Sign of Circularly Polarized Luminescence in Binaphthyl Organic Fluorophores. CHEM LETT 2018. [DOI: 10.1246/cl.180300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Daiki Kaji
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Koji Okuda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Motohiro Shizuma
- Osaka Research Institute of Industrial Science and Technology, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
| | - Nobuo Tajima
- First-Principles Simulation Group, Computational Materials Science Center, NIMS, Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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29
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Abstract
The tetramers of azapentacene derivatives with unique hash mark (#)-shaped structures were prepared in a quite facile manner. The #-shaped tetramers are optically active due to possessing extended biaryl skeletons, and the structure of the tetramer composed of four dihydrodiazapentacene (DHDAP) units (1) was investigated as the first example of this kind of molecule. The tetramer 1 showed characteristic chiroptical properties reflecting its orthogonally arranged quadruple DHDAP moieties, as well as redox activity. The solution of enantiopure 1 exhibited intense circularly polarized luminescence (CPL) with a dissymmetry factor of 2.5 × 10-3. The absolute configuration of the enantiomers of 1 was experimentally determined by X-ray crystal analysis for the dication salt of the enantiomer of 1 with SbCl6- counterions. The solutions of enantiopure 12+·2[SbCl6-] also showed NIR circular dichroism (CD) spectra over the entire range from visible to 1100 nm, enabling the modulation of the chiroptical properties by redox stimuli.
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30
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Konishi A, Morinaga A, Fukuhara G, Nishijima M, Mori T, Kida T, Yasuda M. 1,8-Diphenyl-9,10-Bis(arylethynyl)phenanthrenes: Synthesis, Distorted Structure, and Optical Properties. Chemistry 2018; 24:6625-6631. [PMID: 29473692 DOI: 10.1002/chem.201800150] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Indexed: 01/05/2023]
Abstract
The synthesis and optical properties of 1,8-diphenyl-9,10-bis(arylethynyl)phenanthrenes, which are distorted phenanthrenes, are reported. The presence of the two phenyl groups at the 1,8-positions of phenanthrene significantly distorts the molecular geometries, as was evidenced by X-ray crystallography. The congested substitution pattern in the K region results in a distorted aromatic framework, which leads to a redshift in the emission spectrum. These observations are in stark contrast to 9,10-bis(phenylethynyl)phenanthrene with no phenyl groups at the 1,8-positions. A large Stokes shift suggested extensive structural relaxation between the phenyl and arylethynyl units in the excited state, which was supported by theoretical calculations.
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Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Atsushi Morinaga
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Masaki Nishijima
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Tadashi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toshiyuki Kida
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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31
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Cruz CM, Márquez IR, Mariz IFA, Blanco V, Sánchez-Sánchez C, Sobrado JM, Martín-Gago JA, Cuerva JM, Maçôas E, Campaña AG. Enantiopure distorted ribbon-shaped nanographene combining two-photon absorption-based upconversion and circularly polarized luminescence. Chem Sci 2018; 9:3917-3924. [PMID: 29780523 PMCID: PMC5934837 DOI: 10.1039/c8sc00427g] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/07/2018] [Indexed: 12/21/2022] Open
Abstract
Herein we describe a distorted ribbon-shaped nanographene exhibiting unprecedented combination of optical properties in graphene-related materials, namely upconversion based on two-photon absorption (TPA-UC) together with circularly polarized luminescence (CPL). The compound is a graphene molecule of ca. 2 nm length and 1 nm width with edge defects that promote the distortion of the otherwise planar lattice. The edge defects are an aromatic saddle-shaped ketone unit and a [5]carbohelicene moiety. This system is shown to combine two-photon absorption and circularly polarized luminescence and a remarkably long emission lifetime of 21.5 ns. The [5]helicene is responsible for the chiroptical activity while the push-pull geometry and the extended network of sp2 carbons are factors favoring the nonlinear absorption. Electronic structure theoretical calculations support the interpretation of the results.
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Affiliation(s)
- Carlos M Cruz
- Departamento Química Orgánica , Universidad de Granada (UGR) , C. U. Fuentenueva , 18071 Granada , Spain .
| | - Irene R Márquez
- Departamento Química Orgánica , Universidad de Granada (UGR) , C. U. Fuentenueva , 18071 Granada , Spain .
| | - Inês F A Mariz
- Centro de Química-Física Molecular (CQFM) , Institute of Nanoscience and Nanotechnology (IN) and Centro de Química Estrutural , Instituto Superior Técnico , University of Lisbon , Av. Rovisco Pais, 1 , 1049-001 Lisboa , Portugal
| | - Victor Blanco
- Departamento Química Orgánica , Universidad de Granada (UGR) , C. U. Fuentenueva , 18071 Granada , Spain .
| | - Carlos Sánchez-Sánchez
- Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC) , Sor Juana Inés de la Cruz 3 , 28049 Madrid , Spain
| | - Jesús M Sobrado
- Centro de Astrobiología INTA-CSIC , Torrejón de Ardoz , 28850 Madrid , Spain
| | - José A Martín-Gago
- Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC) , Sor Juana Inés de la Cruz 3 , 28049 Madrid , Spain
- Centro de Astrobiología INTA-CSIC , Torrejón de Ardoz , 28850 Madrid , Spain
| | - Juan M Cuerva
- Departamento Química Orgánica , Universidad de Granada (UGR) , C. U. Fuentenueva , 18071 Granada , Spain .
| | - Ermelinda Maçôas
- Centro de Química-Física Molecular (CQFM) , Institute of Nanoscience and Nanotechnology (IN) and Centro de Química Estrutural , Instituto Superior Técnico , University of Lisbon , Av. Rovisco Pais, 1 , 1049-001 Lisboa , Portugal
| | - Araceli G Campaña
- Departamento Química Orgánica , Universidad de Granada (UGR) , C. U. Fuentenueva , 18071 Granada , Spain .
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Nakakuki Y, Hirose T, Sotome H, Miyasaka H, Matsuda K. Hexa-peri-hexabenzo[7]helicene: Homogeneously π-Extended Helicene as a Primary Substructure of Helically Twisted Chiral Graphenes. J Am Chem Soc 2018; 140:4317-4326. [DOI: 10.1021/jacs.7b13412] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yusuke Nakakuki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takashi Hirose
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hikaru Sotome
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Kenji Matsuda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Takaishi K, Takehana R, Ema T. Intense excimer CPL of pyrenes linked to a quaternaphthyl. Chem Commun (Camb) 2018; 54:1449-1452. [DOI: 10.1039/c7cc09187g] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
(R,R,R)-Quaternaphthyl possessing multiple pyrenes emits CPL with high ΦFL and glum values both in solution and in the solid state.
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Affiliation(s)
- Kazuto Takaishi
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Ryosuke Takehana
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Tadashi Ema
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
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Shimada M, Yamanoi Y, Ohto T, Pham ST, Yamada R, Tada H, Omoto K, Tashiro S, Shionoya M, Hattori M, Jimura K, Hayashi S, Koike H, Iwamura M, Nozaki K, Nishihara H. Multifunctional Octamethyltetrasila[2.2]cyclophanes: Conformational Variations, Circularly Polarized Luminescence, and Organic Electroluminescence. J Am Chem Soc 2017; 139:11214-11221. [DOI: 10.1021/jacs.7b05671] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Masaki Shimada
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshinori Yamanoi
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuhiko Ohto
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Song-Toan Pham
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Yamada
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Hirokazu Tada
- Graduate
School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Kenichiro Omoto
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shohei Tashiro
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mitsuhiko Shionoya
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mineyuki Hattori
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Keiko Jimura
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Shigenobu Hayashi
- National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Hikaru Koike
- Graduate
School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Munetaka Iwamura
- Graduate
School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Koichi Nozaki
- Graduate
School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Hiroshi Nishihara
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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35
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Takaishi K, Yamamoto T, Hinoide S, Ema T. Helical Oligonaphthodioxepins Showing Intense Circularly Polarized Luminescence (CPL) in Solution and in the Solid State. Chemistry 2017; 23:9249-9252. [DOI: 10.1002/chem.201702143] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University, Tsushima; Okayama 700-8530 Japan
| | - Takahiro Yamamoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University, Tsushima; Okayama 700-8530 Japan
| | - Sakiko Hinoide
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University, Tsushima; Okayama 700-8530 Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University, Tsushima; Okayama 700-8530 Japan
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36
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Ito S, Ikeda K, Nakanishi S, Imai Y, Asami M. Concentration-dependent circularly polarized luminescence (CPL) of chiral N,N′-dipyrenyldiamines: sign-inverted CPL switching between monomer and excimer regions under retention of the monomer emission for photoluminescence. Chem Commun (Camb) 2017; 53:6323-6326. [DOI: 10.1039/c7cc01351e] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The CPL of a chiral diamine can be switched between two regions under concomitant inversion of the handedness, while a strong PL intensity is maintained in the same region.
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Affiliation(s)
- Suguru Ito
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
| | - Kengo Ikeda
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
| | - Shoma Nakanishi
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Yoshitane Imai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Masatoshi Asami
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- YOKOHAMA National University
- Yokohama 240-8501
- Japan
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