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Xu Y, Ni Z, Xiao Y, Chen Z, Wang S, Gai L, Zheng YX, Shen Z, Lu H, Guo Z. Helical β-isoindigo-Based Chromophores with B-O-B Bridge: Facile Synthesis and Tunable Near-Infrared Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2023; 62:e202218023. [PMID: 36583391 DOI: 10.1002/anie.202218023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/20/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
It is essential to create organic compounds that exhibit circularly polarized luminescence (CPL) in the near-infrared (NIR) range. Helicene-type emitters possess appealing chiroptical features, however, such NIR molecules are scarce due to a paucity of synthetic strategies. Herein, we developed a series of helical β-isoindigo-based B-O-B bridged aza-BODIPY analogs that were synthesized conveniently. The reaction of diimino-β-isoindigo with a heteroaromatic amine produced a restricted ligand cavity, which triggered off the generation of a B-O-B bridge. The B-O-B bridge led to distorted conformations that satisfy the helical requirements, resulting in excellent spectroscopic and chiroptical properties. Tunable CPL with the highest luminescence dissymmetry factor (glum ) of 1.3×10-3 and a CPL brightness (BCPL =11.5 M-1 cm-1 ) in the NIR region was achieved. This synthetic approach is expected to offer a new opportunity to chiral chemistry and increase flexibility for chiroptical tuning.
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Affiliation(s)
- Yongqiang Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Zhigang Ni
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Yao Xiao
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Ziwei Chen
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Sisi Wang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Lizhi Gai
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zhen Shen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hua Lu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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Zhang CY, Zhang C, Sun GW, Pan JL, Gong L, Sun GZ, Biendicho JJ, Balcells L, Fan XL, Morante JR, Zhou JY, Cabot A. Spin Effect to Promote Reaction Kinetics and Overall Performance of Lithium‐Sulfur Batteries under External Magnetic Field. Angew Chem Int Ed Engl 2022; 61:e202211570. [DOI: 10.1002/anie.202211570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Chao Yue Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology Lanzhou University Lanzhou 730000 China
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
| | - Chaoqi Zhang
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
| | - Guo Wen Sun
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology Lanzhou University Lanzhou 730000 China
| | - Jiang Long Pan
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology Lanzhou University Lanzhou 730000 China
| | - Li Gong
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
| | - Geng Zhi Sun
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials Nanjing Tech University 30 South Puzhu Road Nanjing 211816 China
| | - Jordi Jacas Biendicho
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
| | - Lluís Balcells
- Institut de Ciència de Materials de Barcelona Campus de la UAB 08193 Bellaterra Catalonia Spain
| | - Xiao Long Fan
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology Lanzhou University Lanzhou 730000 China
| | - Joan Ramon Morante
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
| | - Jin Yuan Zhou
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology Lanzhou University Lanzhou 730000 China
- School of Physics and Electronic Information Engineering Qinghai Normal University Xining 810008 China
| | - Andreu Cabot
- Catalonia Institute for Energy Research, IREC Sant Adrià de Besòs 08930 Barcelona Spain
- Catalan Institution for Research and Advanced Studies, ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
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Nojima Y, Hasegawa M, Hara N, Imai Y, Mazaki Y. Small Figure-Eight Luminophores: Double-Twisted Tethered Cyclic Binaphthyls Boost Circularly Polarized Luminescence. Chemistry 2021; 27:5923-5929. [PMID: 33427332 DOI: 10.1002/chem.202005320] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/04/2021] [Indexed: 12/20/2022]
Abstract
Double-twisted cyclic binaphthyls, in which two naphthalenes are tethered by -O(CH2 )n O- linkage (n=1-3), have been synthesized. X-ray analyses and DFT calculations revealed a tightly constrained stereogenic figure-eight geometry. Tethering of two naphthalenes by short linkage forces a small dihedral angle, and the cyclic binaphthyls with short tether (n=1, 2) exhibit remarkable boosting of the glum value (1.0-1.6×10-2 ) in circularly polarized luminescence (CPL) and unusual glum /gabs ratios (0.93-1.3). These experimental high |glum | values are in accord with the results of excited state TD-DFT calculations, which show transannular interactions and that consequent extensive delocalization occurs throughout the figure-eight π-core. As a result, the present figure-eight luminophore promote the elongation of the magnetic transition dipole moment that results in significant increases in glum values.
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Affiliation(s)
- Yuki Nojima
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Masashi Hasegawa
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Yasuhiro Mazaki
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
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