1
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Ishikawa S, Sakamaki D, Gon M, Tanaka K, Fujiwara H. Solvent-free synthesis and chiroptical properties of a C-N axially chiral cruciform dimer of benzo[ b]phenoxazine. Chem Commun (Camb) 2024; 60:4946-4949. [PMID: 38629254 DOI: 10.1039/d4cc00977k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A novel C-N axially chiral molecule composed of two tert-butyl-substituted benzo[b]phenoxazine (BPO) was synthesized via solvent-free reactions. The absolute configurations of the enantiomers were determined by X-ray single-crystal analysis. The enantiomers had a sufficiently high racemization barrier to ignore racemization at room temperature (149 ± 20 kJ mol-1), and the solutions exhibited dual circularly polarized emissions stemming from fluorescence and phosphorescence of |gCPL| = ca. 1 × 10-3.
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Affiliation(s)
- Shuhei Ishikawa
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi-ku, Osaka 558-8585, Japan.
| | - Daisuke Sakamaki
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi-ku, Osaka 558-8585, Japan.
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hideki Fujiwara
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi-ku, Osaka 558-8585, Japan.
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2
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Qu C, Xu Y, Wang Y, Nie Y, Ye K, Zhang H, Zhang Z. Bridging of Cove Regions: A Strategy for Realizing Persistently Chiral Double Heterohelicenes with Attractive Luminescent Properties. Angew Chem Int Ed Engl 2024; 63:e202400661. [PMID: 38333930 DOI: 10.1002/anie.202400661] [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: 01/10/2024] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/10/2024]
Abstract
The racemization of chiral organic compounds is a common chemical phenomenon. However, it often poses configurational-stability issues to the application of this class of compounds. Achieving chiral organic compounds without the risk of racemization is fascinating, but it is challenging due to a lack of strategies. Here, we reveal the cove-regions bridging strategy for achieving persistently chiral multi-helicenes (incapable of racemization), based on the synthesized proof-of-concept double hetero[4]helicenes featuring macrocycle structures with a small 3D cavity. Additionally, we demonstrate that the strategy is also effective in tuning the electronic structures of multi-helicenes, resulting in a conversion from luminescence silence into thermally activated delayed fluorescence (TADF) for the present system. Furthermore, red circularly polarized TADF based on small double [4]helicene systems is achieved for the first time using this strategy. The disclosed cove-regions bridging strategy provides an opportunity to modulate the electronic structures and luminescent properties of multi-helicenes without concern for racemization, thus significantly enhancing the structural and property diversity of multi-helicenes for various applications.
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Affiliation(s)
- Cheng Qu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Yincai Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Yu Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Yufang Nie
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Kaiqi Ye
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Hongyu Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Zuolun Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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3
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Yamamoto K, Tsutsui K, Tanuma M, Ito K, Wakamatsu K, Yamamoto K, Nakamura Y. Phenothiazine cyclic hexamers: synthesis, properties, and complexation behavior with C 60. Chem Commun (Camb) 2024; 60:2220-2223. [PMID: 38314630 DOI: 10.1039/d3cc06206f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Phenothiazine cyclic hexamers linked at the 3,7-positions were synthesized. Effects of the cyclic structure as well as substituent effects of the nitrogen atom were disclosed. Furthermore, the cyclic hexamer encapsulated C60 inside the ring in a 1 : 1 ratio giving a Saturn-type complex in solution. The structure and interactions were discussed based on DFT calculations.
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Affiliation(s)
- Koji Yamamoto
- Department of Pharmaceutical Sciences, Shujitsu University, 1-6-1 Nishigawara, Okayama 703-8516, Japan.
| | - Kanta Tsutsui
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Miho Tanuma
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Kaname Ito
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Koji Yamamoto
- Department of Applied Chemistry, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, 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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4
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Harada K, Hasegawa C, Matsumoto T, Sugishita H, Kitamura C, Higashibayashi S, Hasegawa M, Suzuki S, Kato SI. A double-helical S,C-bridged tetraphenyl- para-phenylenediamine and its persistent radical cation. Chem Commun (Camb) 2023; 59:1301-1304. [PMID: 36633220 DOI: 10.1039/d2cc06144a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A structurally constrained, double-helical S,C-bridged tetraphenyl-para-phenylenediamine (TPPD) has been synthesized. The stable radical cation of the S,C-bridged TPPD was generated by chemical oxidation, and the electron spin was found to be delocalized over the entire π-conjugated framework. The excellent conformational stability of the neutral molecule facilitated the separation of its enantiomers.
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Affiliation(s)
- Kaho Harada
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan.
| | - Chika Hasegawa
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 6-1 Kasuga-koh-en, Kasuga 816-8580, Japan
| | - Hiroki Sugishita
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan.
| | - Chitoshi Kitamura
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan.
| | - Shuhei Higashibayashi
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Masashi Hasegawa
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Shin-Ichiro Kato
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan.
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5
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Tian X, Shoyama K, Würthner F. Nitrogen-doped polycyclic aromatic hydrocarbons by a one-pot Suzuki coupling/intramolecular S NAr reaction. Chem Sci 2023; 14:284-290. [PMID: 36687343 PMCID: PMC9811559 DOI: 10.1039/d2sc05409d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
We report a new method for the synthesis of nitrogen-doped (N-doped) polycyclic aromatic hydrocarbons (PAHs) by a Suzuki coupling/intramolecular SNAr cascade reaction. A one- or two-fold [3 + 3] naphtho-annulation of halogenated aniline was conducted under Suzuki-Miyaura cross-coupling conditions to yield a series of fully fused N-doped PAHs. In contrast to reported methods to synthesize pyridinic or pyrrolic nitrogen-doped PAHs, our method enables preparation of PAHs doped with graphitic nitrogen, for which few reports are known in the literature. The crystal structure as well as absorption, fluorescence and electrochemical properties of these N-doped PAHs were investigated, which demonstrated the capability of N-doping to adjust optical and electronic properties and alter the LUMO energy level.
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Affiliation(s)
- Xiaoqi Tian
- Universität Würzburg, Institut für Organische ChemieAm HublandWürzburg 97074Germany
| | - Kazutaka Shoyama
- Universität Würzburg, Institut für Organische ChemieAm HublandWürzburg 97074Germany
| | - Frank Würthner
- Universität Würzburg, Institut für Organische ChemieAm HublandWürzburg 97074Germany,Universität Würzburg, Center for Nanosystems Chemistry (CNC)Theodor-Boveri-WegWürzburg 97074Germany
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6
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Synthesis, structure, and electronic properties of a double hetero[4]helicene composed of two phenoselenazines. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Yang W, Shen J. Multiple Heterohelicenes: Synthesis, Properties and Applications**. Chemistry 2022; 28:e202202069. [DOI: 10.1002/chem.202202069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Wen‐Wen Yang
- School of the Environment and Safety Engineering Jiangsu University Zhenjiang 212013 Jiangsu P. R. China
| | - Jun‐Jian Shen
- School of the Environment and Safety Engineering Jiangsu University Zhenjiang 212013 Jiangsu P. R. China
- Institute of Environmental Health and Ecological Security Jiangsu University Zhenjiang 212013 Jiangsu P. R. China
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8
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Matsumoto K, Tachi Y, Kozaki M. A fused polycyclic compound containing phenothiazine and diazapyrene skeletons with weak D-A interactions. Chem Commun (Camb) 2022; 58:8572-8575. [PMID: 35815948 DOI: 10.1039/d2cc02635j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A small fused polycyclic molecule containing a phenothiazine and diazapyrene skeleton as the donor and acceptor, respectively, has a redox potential similar to those of the corresponding donor and acceptor molecules, indicating that the inherent electronic properties of the donor and acceptor were retained due to weak orbital interactions.
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Affiliation(s)
- Keito Matsumoto
- Graduate School of Science, Osaka City University 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.
| | - Yoshimitsu Tachi
- Graduate School of Science, Osaka City University 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.
| | - Masatoshi Kozaki
- Graduate School of Science, Osaka City University 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.
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9
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Dosso J, Bartolomei B, Demitri N, Cossío FP, Prato M. Phenanthrene-Extended Phenazine Dication: An Electrochromic Conformational Switch Presenting Dual Reactivity. J Am Chem Soc 2022; 144:7295-7301. [PMID: 35412820 PMCID: PMC9052754 DOI: 10.1021/jacs.2c00493] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
The synthesis and
isolation of one of the few examples of a π-extended
diamagnetic phenazine dication have been achieved by oxidizing a phenanthrene-based
dihydrophenazine precursor. The resulting dication was isolated and
fully characterized, highlighting an aromatic distorted structure,
generated by the conformational change upon the oxidation of the dihydrophenazine
precursor, which is also correlated with a marked electrochromic change
in the UV–vis spectrum. The aromaticity of the dication has
also been investigated theoretically, proving that the species is
aromatic based on all major criteria (structural, magnetic, and energetic).
Moreover, the material presents an intriguing dual reactivity, resulting
in ring contraction to a π-extended triarylimidazolinium and
reduction to the dihydrophenazine precursor, depending on the nature
of the nucleophile involved. This result helps shed light on the yet
largely unexplored reactivity and properties of extended dicationic
polycyclic aromatic hydrocarbons (PAHs). In particular, the fact that
the molecule can undergo a reversible change in conformation upon
oxidation and reduction opens potential applications for this class
of derivatives as molecular switches and actuators.
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Affiliation(s)
- Jacopo Dosso
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Beatrice Bartolomei
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Nicola Demitri
- Elettra─Sincrotrone, Trieste S.S., 14 Km 163.5, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Fernando P Cossío
- Departamento de Química Orgánica I, Instituto de Innovaciónen Química Avanzada (ORFEO-CINQA), University of the Basque Country (UPV/EHU), Paseo Manuel Lardizabal 3, 20018 Donostia/San Sebastián, Spain.,Donostia International Physics Center (DIPC), Paseo Manuel Lardizabal 4, 20018 Donostia/San Sebastián, Spain
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy.,Centre for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia San Sebastián, Spain.,Basque Fdn Sci, Ikerbasque, 48013 Bilbao, Spain
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10
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Chen S, Xia Y, Jin S, Lei H, You K, Deng GJ. A Mild Two-Step Synthesis of Structurally Valuable Indole-Fused Derivatives. J Org Chem 2022; 87:3212-3222. [DOI: 10.1021/acs.joc.1c02927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
| | - Yi Xia
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shikai Jin
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hanwen Lei
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Kuiyi You
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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11
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Borissov A, Maurya YK, Moshniaha L, Wong WS, Żyła-Karwowska M, Stępień M. Recent Advances in Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds. Chem Rev 2022; 122:565-788. [PMID: 34850633 PMCID: PMC8759089 DOI: 10.1021/acs.chemrev.1c00449] [Citation(s) in RCA: 231] [Impact Index Per Article: 115.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 12/21/2022]
Abstract
This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules with a focus on structural diversity and synthetic methodology. The article covers literature published during the period of 2016-2020, providing an update to our first review of this topic (Chem. Rev. 2017, 117 (4), 3479-3716).
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Affiliation(s)
| | | | | | | | | | - Marcin Stępień
- Wydział Chemii, Uniwersytet
Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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12
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Wu X, Huang JW, Su BK, Wang S, Yuan L, Zheng WQ, Zhang H, Zheng YX, Zhu W, Chou PT. Fabrication of Circularly Polarized MR-TADF Emitters with Asymmetrical Peripheral-Lock Enhancing Helical B/N-Doped Nanographenes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105080. [PMID: 34693564 DOI: 10.1002/adma.202105080] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Circularly polarized thermally activated delayed fluorescence (CP-TADF) and multiple-resonance thermally activated delayed fluorescence (MR-TADF), which exhibit novel circularly polarized luminescence and excellent color fidelity, respectively, have gained immense popularity. In this study, integrated CP-TADF and MR-TADF (CPMR-TADF) are prepared by strategic design and synthesis of asymmetrical peripherally locked enantiomers, which are separated and denoted as (P,P″,P″)-/(M,M″,M″)-BN4 and (P,P″,P″)-/(M,M″,M″)-BN5 and exhibit TADF and circularly polarized light (CPL) properties. As the entire molecular frame participates in the frontier molecular orbitals, the resulting helical chirality of (+)/(-)-BN4- and (+)/(-)-BN5-based solution-processed organic light-emitting diodes (OLEDs) helps in achieving a narrow full width at half maximum (FWHM) of 49/49 and 48/48 nm and a high maximum external quantum efficiency (EQE) of 20.6%/19.0% and 22.0%/26.5%, respectively. Importantly, unambiguous circularly polarized electroluminescence signals with dissymmetry factors (gEL ) of +3.7 × 10-3 /-3.1 × 10-3 (BN4) and +1.9 × 10-3 /-1.6 × 10-3 (BN5) are obtained. The results indicate successful exploitation of CPMR-TADF-emitter-based OLEDs to exhibit three characteristics: high efficiency, color purity, and circularly polarized light.
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Affiliation(s)
- Xiugang Wu
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Jing-Wei Huang
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Bo-Kang Su
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | - Sai Wang
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Li Yuan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Wei-Qiong Zheng
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Hu Zhang
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - You-Xuan Zheng
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Weiguo Zhu
- School of Materials Science and Engineering, Jiangsu Collaboration Innovation Center of Photovoltaic Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
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13
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Sakamaki D, Tanaka S, Tanaka K, Takino M, Gon M, Tanaka K, Hirose T, Hirobe D, Yamamoto HM, Fujiwara H. Double Heterohelicenes Composed of Benzo[ b]- and Dibenzo[ b, i]phenoxazine: A Comprehensive Comparison of Their Electronic and Chiroptical Properties. J Phys Chem Lett 2021; 12:9283-9292. [PMID: 34542299 DOI: 10.1021/acs.jpclett.1c02896] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Heterohelicenes are potential materials in molecular electronics and optics because of their inherent chirality and various electronic properties originating from the introduced heteroatoms. In this work, we comprehensively investigated two kinds of double NO-hetero[5]helicenes composed of 12H-benzo[b]phenoxazine (BPO) and 13H-dibenzo[b,i]phenoxazine (DBPO). These helicenes exhibit good electron-donor properties reflecting the electron-rich character of their monomers and were demonstrated to work as p-type semiconductors. The enantiomers of these helicenes show the largest class of dissymmetry factors for circularly polarized luminescence (CPL) (|gCPL| > 10-2) among helicenes reported to date. Interestingly, the signs of CPL are opposite for BPO and DBPO double helicenes of the same helicity. The origin of the large gCPL values and the inversion of the CPL sign was addressed by analysis of the transition electronic dipole moments and transition magnetic dipole moments based on TD-DFT calculations.
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Affiliation(s)
- Daisuke Sakamaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Shunya Tanaka
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Katsuki Tanaka
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Mayu Takino
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takashi Hirose
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Daichi Hirobe
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
- Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
- SOKENDAI (Graduate University for Advanced Studies), Myodaiji, Okazaki 444-8585, Japan
| | - Hiroshi M Yamamoto
- Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
- SOKENDAI (Graduate University for Advanced Studies), Myodaiji, Okazaki 444-8585, Japan
| | - Hideki Fujiwara
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Naka-ku, Sakai, Osaka 599-8531, Japan
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14
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Kataoka S, Suzuki S, Shiota Y, Yoshizawa K, Matsumoto T, Asano MS, Yoshihara T, Kitamura C, Kato SI. S,C,C- and O,C,C-Bridged Triarylamines and Their Persistent Radical Cations. J Org Chem 2021; 86:12559-12568. [PMID: 34465083 DOI: 10.1021/acs.joc.1c00969] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work reports the synthesis, crystal structures, and electronic properties of structurally constrained S,C,C- and O,C,C-bridged triarylamine derivatives and their persistent radical cations. O,C,C-Bridged triphenylamines and a dinaphthylphenylamine were obtained through a straightforward synthetic protocol. Similar to a previously reported S,C,C-bridged triphenylamine, the O,C,C-bridged triarylamines were easily oxidized to afford the corresponding radical cations, which were obtained as hexachloroantimonate salts. X-ray crystallographic analyses showed almost planar structures for these O,C,C-bridged triarylamine radical cations, which represent new members of the family of planar triarylamine radical cations without substituents on the aryl rings. Detailed investigations of the electronic properties of the S,C,C- and O,C,C-bridged triarylamine radical cations demonstrated that the spin and positive charge are sufficiently delocalized over the planar triarylamine scaffolds. The results provide the following insights into the effects of the bridging unit (sulfur vs oxygen) and the dibenzo-annulation on the spin delocalization in the bridged triarylamine radical cations: (1) An effective decrease of the spin density on the nitrogen atom is observed for the sulfur bridge relative to the oxygen bridge; and (2) a moderate decrease of the spin density on the oxygen atom rather than the nitrogen atom is induced by the dibenzo-annulation.
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Affiliation(s)
- Shunpei Kataoka
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 6-1 Kasuga-koh-en, Kasuga 816-8580, Japan
| | - Motoko S Asano
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Toshitada Yoshihara
- 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
| | - Shin-Ichiro Kato
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
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15
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Affiliation(s)
- Tadashi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University,2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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16
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Zhu G, Song Y, Zhang Q, Ding W, Chen X, Wang Y, Zhang G. Modulating the properties of buckybowls containing multiple heteroatoms. Org Chem Front 2021. [DOI: 10.1039/d0qo01452d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrogen-centered buckybowls with sulfur decoration at the rim were synthesized and characterized. The buckybowls demonstrate tunable properties depending on the state of the sulfur atom.
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Affiliation(s)
- Guanxing Zhu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Yujun Song
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Qianyu Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Weiwei Ding
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Xinxin Chen
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Yuannan Wang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
| | - Gang Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing
- P. R. China
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17
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Hiroto S. Helical Pitch Dependent Optical Properties of π-Extended Aza[5]helicene Radical Cations. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Satoru Hiroto
- Graduate School of Human and Environmental Studies, Kyoto University, Nihonmatsu-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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18
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Tani F, Narita M, Murafuji T. Helicene Radicals: Molecules Bearing a Combination of Helical Chirality and Unpaired Electron Spin. Chempluschem 2020; 85:2093-2104. [DOI: 10.1002/cplu.202000452] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/19/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Fumito Tani
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Masahiro Narita
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation Yamaguchi University Yamaguchi 753-8512 Japan
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19
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium‐Catalyzed Highly Diastereo‐ and Enantioselective Synthesis of a Configurationally Stable S‐Shaped Double Helicene‐Like Molecule. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001794] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takashi Matsumoto
- Rigaku Corporation 3-9-12 Matsubara-cho Akishima Tokyo 196-8666 Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
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20
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium-Catalyzed Highly Diastereo- and Enantioselective Synthesis of a Configurationally Stable S-Shaped Double Helicene-Like Molecule. Angew Chem Int Ed Engl 2020; 59:11020-11027. [PMID: 32237104 DOI: 10.1002/anie.202001794] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/25/2020] [Indexed: 12/13/2022]
Abstract
An S-shaped double helicene-like molecule (>99 % ee), possessing stable helical chirality, has been synthesized by the rhodium(I)/difluorphos complex-catalyzed highly diastereo- and enantioselective intramolecular double [2+2+2] cycloaddition of a 2-naphthol- and benzene-linked hexayne. The collision between two terminal naphthalene rings destabilizes the helical chirality of the S-shaped double helicene-like molecule, but the introduction of two additional fused benzene rings significantly increases the configurational stability. Thus, no epimerization and racemization were observed even at 100 °C. The enantiopure S-shaped double helicene-like molecule forms a trimer through the multiple C-H⋅⋅⋅π and C-H⋅⋅⋅O interactions in the solid-state. The trimers stack to form columnar packing structures, in which neighboring stacks have opposite dipole directions. The accumulation of helical structures in the same direction in the S-shaped double helicene-like molecule enhanced the chiroptical properties.
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Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Takashi Matsumoto
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo, 196-8666, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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21
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Schuster NJ, Joyce LA, Paley DW, Ng F, Steigerwald ML, Nuckolls C. The Structural Origins of Intense Circular Dichroism in a Waggling Helicene Nanoribbon. J Am Chem Soc 2020; 142:7066-7074. [DOI: 10.1021/jacs.0c00646] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Leo A. Joyce
- Department of Process Research and Development, Merck and Co., Inc., Rahway, New Jersey 07065, United States
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22
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Kato SI, Matsuoka T, Suzuki S, Asano MS, Yoshihara T, Tobita S, Matsumoto T, Kitamura C. Synthesis, Structures, and Properties of Neutral and Radical Cationic S,C,C-Bridged Triphenylamines. Org Lett 2019; 22:734-738. [DOI: 10.1021/acs.orglett.9b04575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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
| | - Takanori Matsuoka
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Engineering Science, 1-3, Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Motoko S. Asano
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Toshitada Yoshihara
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Seiji Tobita
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 6-1, Kasuga-koh-en, Kasuga, Fukuoka 816-8580, Japan
| | - Chitoshi Kitamura
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
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23
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Narita M, Teraoka T, Murafuji T, Shiota Y, Yoshizawa K, Mori S, Uno H, Kanegawa S, Sato O, Goto K, Tani F. An Azulene-Based Chiral Helicene and Its Air-Stable Cation Radical. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190219] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Masahiro Narita
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Takaaki Teraoka
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Shigeki Mori
- Advanced Research Support Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Hidemitsu Uno
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - Shinji Kanegawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kenta Goto
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Fumito Tani
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
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24
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Li Q, Zhang X, Cao Y, Shi C, Tao P, Zhao Q, Yuan A. An oxygen-bridged triarylamine polycyclic unit based tris-cyclometalated heteroleptic iridium(iii) complex: correlation between the structure and photophysical properties. Dalton Trans 2019; 48:4596-4601. [PMID: 30888006 DOI: 10.1039/c9dt00344d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel oxygen-bridged triarylamine polycyclic unit based tris-cyclometalated heteroleptic iridium(iii) complex (Ir-NO) has been designed and prepared. Similar iridium(iii) complexes (Ir-N and Ir-O) have also been prepared for comparison. The single crystal structure indicates that the oxygen-bridged triarylamine polycyclic unit of Ir-NO shows certain planarity, resulting in obvious rigidity and interesting π-π stacking. Additionally, Ir-NO shows a larger redshift emission (586 nm) and a longer emission lifetime (628 ns) than Ir-N (525 nm, 344 ns) and Ir-O (543 nm, 436 ns), and the phosphorescence color can be tuned from green to orange. Electrochemical experiments and DFT calculations reveal that Ir-NO exhibits a high HOMO energy level and intraligand charge transfer (3ILCT) excited state properties, which is in contrast to the low HOMO energy level and metal-to-ligand charge transfer (3MLCT) excited state properties in Ir-N and Ir-O. This result can be attributed to the strong electron-donating ability of the unit.
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Affiliation(s)
- Qiuxia Li
- School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China.
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25
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Pop F, Zigon N, Avarvari N. Main-Group-Based Electro- and Photoactive Chiral Materials. Chem Rev 2019; 119:8435-8478. [DOI: 10.1021/acs.chemrev.8b00770] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Flavia Pop
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
| | - Nicolas Zigon
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
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26
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Oda S, Shimizu T, Katayama T, Yoshikawa H, Hatakeyama T. Tetracoordinate Boron-Fused Double [5]Helicenes as Cathode Active Materials for Lithium Batteries. Org Lett 2019; 21:1770-1773. [DOI: 10.1021/acs.orglett.9b00337] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Susumu Oda
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Takeshi Shimizu
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Takazumi Katayama
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Hirofumi Yoshikawa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Takuji Hatakeyama
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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27
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Kimura Y, Shibata Y, Noguchi K, Tanaka K. Enantioselective Synthesis and Epimerization Behavior of a Chiral S‐Shaped [11]Helicene‐Like Molecule Having Collision between Terminal Benzene Rings. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801694] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yuki Kimura
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center Tokyo University of Agriculture and Technology Koganei 184‐8588 Tokyo Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
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28
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Sun J, Sun QS, Yan CG. Efficient synthesis of novel cyclic fused-phenothiazines via domino cyclization of 2-(benzo[b][1,4]thiazin-3-ylidene)acetate, aromatic aldehydes and cyclic 1,3-diketones. Org Chem Front 2019. [DOI: 10.1039/c9qo00951e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel fused and bridged phenothiazine derivatives were selectively synthesized via an acid-promoted reaction of alkyl 2-(benzo[b][1,4]thiazin-3-ylidene)acetate, aromatic aldehydes and cyclic diketones under different reaction conditions.
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Affiliation(s)
- Jing Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Quan-Shun Sun
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
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29
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Kamikawa K, Den H, Tsurusaki A, Nagata T, Miura M. Synthesis of Substituted Helicenes by Ir-Catalyzed Annulative Coupling of Biarylcarboxylic Acid Chlorides with Alkynes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Hiroakira Den
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomoya Nagata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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30
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31
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Sun J, Sun QS, Yan CG. Selective construction of indeno[1,2- b ]phenothiazine and indeno[2,1- c ]phenothiazine via tandem annulation reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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32
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Schuster NJ, Hernández Sánchez R, Bukharina D, Kotov NA, Berova N, Ng F, Steigerwald ML, Nuckolls C. A Helicene Nanoribbon with Greatly Amplified Chirality. J Am Chem Soc 2018; 140:6235-6239. [DOI: 10.1021/jacs.8b03535] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nathaniel J. Schuster
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Raúl Hernández Sánchez
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Daria Bukharina
- Department of Chemical Engineering and Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nicholas A. Kotov
- Department of Chemical Engineering and Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nina Berova
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Fay Ng
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Michael L. Steigerwald
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
| | - Colin Nuckolls
- Department of Chemistry and Columbia Nano Initiative, Columbia University, New York, New York 10027, United States
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33
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Hosokawa T, Takahashi Y, Matsushima T, Watanabe S, Kikkawa S, Azumaya I, Tsurusaki A, Kamikawa K. Synthesis, Structures, and Properties of Hexapole Helicenes: Assembling Six [5]Helicene Substructures into Highly Twisted Aromatic Systems. J Am Chem Soc 2017; 139:18512-18521. [DOI: 10.1021/jacs.7b07113] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tomoka Hosokawa
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Yusuke Takahashi
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomoya Matsushima
- Department
of Biomolecular Science, Faculty of Science, and Research Center for
Materials with Integrated Properties, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Soichiro Watanabe
- Department
of Biomolecular Science, Faculty of Science, and Research Center for
Materials with Integrated Properties, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Shoko Kikkawa
- Faculty
of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Isao Azumaya
- Faculty
of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Akihiro Tsurusaki
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Ken Kamikawa
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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34
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Duwald R, Pascal S, Bosson J, Grass S, Besnard C, Bürgi T, Lacour J. Enantiospecific Elongation of Cationic Helicenes by Electrophilic Functionalization at Terminal Ends. Chemistry 2017; 23:13596-13601. [DOI: 10.1002/chem.201703441] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Romain Duwald
- Department of Organic Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Simon Pascal
- Department of Organic Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Johann Bosson
- Department of Organic Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Stéphane Grass
- Department of Organic Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratoire de Cristallographie; University of Geneva; quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry; University of Geneva; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
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35
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Hu Y, Wang XY, Peng PX, Wang XC, Cao XY, Feng X, Müllen K, Narita A. Benzo-Fused Double [7]Carbohelicene: Synthesis, Structures, and Physicochemical Properties. Angew Chem Int Ed Engl 2016; 56:3374-3378. [DOI: 10.1002/anie.201610434] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Yunbin Hu
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Xiao-Ye Wang
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Pi-Xian Peng
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xin-Chang Wang
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xiao-Yu Cao
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (CFAED), Department of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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36
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Hu Y, Wang XY, Peng PX, Wang XC, Cao XY, Feng X, Müllen K, Narita A. Benzanelliertes Doppel-[7]Carbohelicen: Synthese, Struktur und physikochemische Eigenschaften. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610434] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yunbin Hu
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Xiao-Ye Wang
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Pi-Xian Peng
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xin-Chang Wang
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xiao-Yu Cao
- Department of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (CFAED), Fachrichtung Chemie und Lebensmittelchemie; Technische Universität Dresden; 01062 Dresden Deutschland
| | - Klaus Müllen
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Akimitsu Narita
- Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
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37
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Gliemann BD, Petrovic AG, Zolnhofer EM, Dral PO, Hampel F, Breitenbruch G, Schulze P, Raghavan V, Meyer K, Polavarapu PL, Berova N, Kivala M. Configurationally Stable Chiral Dithia-Bridged Hetero[4]helicene Radical Cation: Electronic Structure and Absolute Configuration. Chem Asian J 2016; 12:31-35. [DOI: 10.1002/asia.201601452] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 11/20/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Bettina D. Gliemann
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
| | - Ana G. Petrovic
- Department of Life Sciences; New York Institute of Technology, 1855 Broadway, New York; NY, 10023 USA
- Department of Chemistry; Columbia University, 3000 Broadway, New York; NY, 10027 USA
| | - Eva M. Zolnhofer
- Chair of General and Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen; Germany
| | - Pavlo O. Dral
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Frank Hampel
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
| | - Georg Breitenbruch
- Department of Chromatography and Electrophoresis; Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Philipp Schulze
- Department of Chromatography and Electrophoresis; Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Vijay Raghavan
- Department of Chemistry; Vanderbilt University; TN, 37235 USA 7330 Stevenson Center Station B 351822 Nashville
| | - Karsten Meyer
- Chair of General and Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen; Germany
| | - Prasad L. Polavarapu
- Department of Chemistry; Vanderbilt University; TN, 37235 USA 7330 Stevenson Center Station B 351822 Nashville
| | - Nina Berova
- Department of Chemistry; Columbia University, 3000 Broadway, New York; NY, 10027 USA
| | - Milan Kivala
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
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38
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Goerigk L, Sharma R. The INV24 test set: how well do quantum-chemical methods describe inversion and racemization barriers? CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0290] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
For years, there has been ongoing interest in experimentally and theoretically understanding inversion and racemization processes. However, to the best of our knowledge, there has been no computational study that systematically investigated how well low-level quantum-chemical methods predict inversion barriers. Herein, we provide an answer to this question and we present the INV24 benchmark set of 24 high-level, ab initio inversion barriers. INV24 covers inversion in triatomics, in pyramidal molecules, in one cyclic system, and in various helical and bowl-shaped compounds. Our results indicate that previously applied DFT approximations combined with small basis sets are not reliable enough and that at least a triple-ζ basis is needed for meaningful results. Moreover, we show that intramolecular London dispersion influences the barriers by 2 kcal/mol or more and that dispersion corrections should always be applied to DFT results. With our analysis of 34 DFT approximations, we can reproduce the well-known Jacob’s Ladder scheme with (meta-)generalized-gradient-approximation methods underestimating barriers and global-hybrid DFT functionals performing better. Range-separated hybrids or Minnesota-type hybrids are not particularly superior to more conventional methods, such as B3LYP-D3. The by far best results are achieved with dispersion-corrected double hybrids, which give results below the chemical accuracy target of 1 kcal/mol. They also outperform wave-function second-order perturbation theory approaches and we recommend using them whenever possible. Given that our systematic study of INV24 is the first of its kind, our findings have the potential to change common practice in this field and they will guide future investigations of inversion processes.
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Affiliation(s)
- Lars Goerigk
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Rahul Sharma
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
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39
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Biet T, Martin K, Hankache J, Hellou N, Hauser A, Bürgi T, Vanthuyne N, Aharon T, Caricato M, Crassous J, Avarvari N. Triggering Emission with the Helical Turn in Thiadiazole-Helicenes. Chemistry 2016; 23:437-446. [PMID: 27763709 DOI: 10.1002/chem.201604471] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 01/17/2023]
Abstract
Introduction of heterocycles into the helical skeleton of helicenes allows modulation of their redox, chiroptical, and photophysical properties. This paper describes the straightforward preparation and structural characterization by single-crystal X-ray diffraction of thiadiazole-[7]helicene, which was resolved into M and P enantiomers by chiral HPLC, together with its S-shaped double [4]helicene isomer, as well as the smaller congeners thiadiazole-[5]helicene and benzothiadiazole-anthracene. A copper(II) complex with two thiadiazole-[5]helicene ligands was structurally characterized, and it shows the presence of both M and P isomers coordinated to the metal center. The emission properties of the heterohelicenes are highly dependent on the helical turn, as the [7]- and [5]helicene are poorly emissive, whereas their isomers, that is, the S-shaped double [4]helicene and thiadiazole-benzanthracene, are luminescent, with quantum efficiencies of 5.4 and 6.5 %, respectively. DFT calculations suggest quenching of the luminescence of enantiopure [7]helicenes through an intersystem-crossing mechanism arising from the relaxed excited S1 state.
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Affiliation(s)
- Thomas Biet
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Kévin Martin
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Jihane Hankache
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nora Hellou
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Andreas Hauser
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille , France
| | - Tal Aharon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Narcis Avarvari
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
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40
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Wang XY, Wang XC, Narita A, Wagner M, Cao XY, Feng X, Müllen K. Synthesis, Structure, and Chiroptical Properties of a Double [7]Heterohelicene. J Am Chem Soc 2016; 138:12783-12786. [DOI: 10.1021/jacs.6b08664] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiao-Ye Wang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Xin-Chang Wang
- Department
of Chemistry and Chemical Engineering, Xiamen University, 361005 Xiamen, China
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Manfred Wagner
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Xiao-Yu Cao
- Department
of Chemistry and Chemical Engineering, Xiamen University, 361005 Xiamen, China
| | - Xinliang Feng
- Center
for Advancing Electronics Dresden, Department of Chemistry and Food
Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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41
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Delgado IH, Pascal S, Wallabregue A, Duwald R, Besnard C, Guénée L, Nançoz C, Vauthey E, Tovar RC, Lunkley JL, Muller G, Lacour J. Functionalized cationic [4]helicenes with unique tuning of absorption, fluorescence and chiroptical properties up to the far-red range. Chem Sci 2016; 7:4685-4693. [PMID: 29348909 PMCID: PMC5772034 DOI: 10.1039/c6sc00614k] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/06/2016] [Indexed: 01/09/2023] Open
Abstract
Unprecedented regioselective post-functionalization of racemic and enantiopure cationic diaza [4]helicenes is afforded. The peripheral auxochrome substituents allow a general tuning of the electrochemical, photophysical and chiroptical properties of the helical dyes (26 examples). For instance, electronic absorption and circular dichroism are modulated from the orange to near-infrared spectral range (575-750 nm), fluorescence quantum efficiency is enhanced up to 0.55 (631 nm) and circularly polarized luminescence is recorded in the red (|glum| ∼ 10-3).
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Affiliation(s)
- I Hernández Delgado
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - S Pascal
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - A Wallabregue
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - R Duwald
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - C Besnard
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - L Guénée
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - C Nançoz
- Department of Physical Chemistry , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - E Vauthey
- Department of Physical Chemistry , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - R C Tovar
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - J L Lunkley
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - G Muller
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - J Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
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42
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Pascal S, Besnard C, Zinna F, Di Bari L, Le Guennic B, Jacquemin D, Lacour J. Zwitterionic [4]helicene: a water-soluble and reversible pH-triggered ECD/CPL chiroptical switch in the UV and red spectral regions. Org Biomol Chem 2016; 14:4590-4. [DOI: 10.1039/c6ob00752j] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chiroptical switching properties of a readily accessible and water-soluble diaza [4]helicene are disclosed.
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Affiliation(s)
- Simon Pascal
- University of Geneva
- Department of Organic Chemistry
- CH-1211 Geneva 4
- Switzerland
| | - Céline Besnard
- Laboratory of Crystallography
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Francesco Zinna
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Lorenzo Di Bari
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Denis Jacquemin
- Laboratoire CEISAM
- UMR 6230 CNRS
- Université de Nantes
- 44322 Nantes Cedex 3
- France
| | - Jérôme Lacour
- University of Geneva
- Department of Organic Chemistry
- CH-1211 Geneva 4
- Switzerland
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