1
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Narita H, Min H, Kubo N, Hattori I, Yasuda T, Yamaguchi S. Bis-Ortho-Donor-Modification of Boracyclic π-Electron Systems beyond Steric Protection to Produce Thermally Activated Delayed Fluorescence Materials. Angew Chem Int Ed Engl 2024; 63:e202405412. [PMID: 38714489 DOI: 10.1002/anie.202405412] [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: 03/19/2024] [Revised: 05/02/2024] [Accepted: 05/02/2024] [Indexed: 05/10/2024]
Abstract
Polycyclic π-conjugated compounds that contain tricoordinate boron atoms at their periphery represent an attractive class of materials with electron-accepting character. Their molecular design generally requires the introduction of a bulky aryl group onto the boron atom, where it provides predominantly kinetic stabilization. The addition of extra functionality to the aryl group on the boron atom can be expected to further expand the potential utility of this class of materials. Herein, we report the synthesis of a series of boracyclic π-conjugated molecules with firm ortho B⋅⋅⋅N nonbonding interactions by introducing N-containing electron-donors at the ortho-positions of the aryl group on the boron atom. X-ray crystallographic analysis revealed that the combination of a planar boracyclic π-skeleton with only sp2 carbons and a strong electron-donating phenothiazine moiety results in a particularly short B⋅⋅⋅N distance. Theoretical study provided insights into the inherent nature of the B⋅⋅⋅N interaction. Owing to their donor-acceptor (D-A) structures, these molecules exhibit substantially red-shifted fluorescence in solution, albeit that the fluorescence quantum yields (ΦF) are low. In contrast, when incorporated into films, these compounds exhibit thermally activated delayed fluorescence (TADF) with improved ΦF values. Organic light-emitting diodes (OLEDs) fabricated using the ortho-donor-substituted derivatives exhibit orange-red electroluminescence.
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Affiliation(s)
- Hiroki Narita
- Department of Chemistry, Graduate School of Science, Research Center for Materials Science (RCMS), Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Hyukgi Min
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Nanami Kubo
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Izumi Hattori
- Department of Chemistry, Graduate School of Science, Research Center for Materials Science (RCMS), Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Takuma Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
- Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, Research Center for Materials Science (RCMS), Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8601, Japan
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2
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Yang B, Zhang YM, Wang C, Gu C, Li C, Yin H, Yan Y, Yang G, Zhang SXA. An electrochemically responsive B-O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics. Nat Commun 2024; 15:5166. [PMID: 38886345 PMCID: PMC11183244 DOI: 10.1038/s41467-024-48918-6] [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: 11/17/2023] [Accepted: 05/17/2024] [Indexed: 06/20/2024] Open
Abstract
Boron-doped polycyclic aromatic hydrocarbons exhibit excellent optical properties, and regulating their photophysical processes is a powerful strategy to understand the luminescence mechanism and develop new materials and applications. Herein, an electrochemically responsive B-O dynamic coordination bond is proposed, and used to regulate the photophysical processes of boron-nitrogen-doped polyaromatic hydrocarbons. The formation of the B-O coordination bond under a suitable voltage is confirmed by experiments and theoretical calculations, and B-O coordination bond can be broken back to the initial state under opposite voltage. The whole process is accompanied by reversible changes in photophysical properties. Further, electrofluorochromic devices are successfully prepared based on the above electrochemically responsive coordination bond. The success and harvest of this exploration are beneficial to understand the luminescence mechanism of boron-nitrogen-doped polyaromatic hydrocarbons, and provide ideas for design of dynamic covalent bonds and broaden material types and applications.
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Affiliation(s)
- Baige Yang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yu-Mo Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China.
| | - Chunyu Wang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China
| | - Chang Gu
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China
| | - Chenglong Li
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China.
| | - Hang Yin
- Institute of Atomic and Molecular Physics, Jilin University, Changchun, P. R. China.
| | - Yan Yan
- College of Instrumentation & Electrical Engineering, Jilin University, Changchun, P. R. China
| | - Guojian Yang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China
| | - Sean Xiao-An Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China.
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3
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Marsili E, Curchod BFE. A Theoretical Perspective on the Photochemistry of Boron-Nitrogen Lewis Adducts. J Phys Chem A 2024; 128:996-1008. [PMID: 38236050 PMCID: PMC10875676 DOI: 10.1021/acs.jpca.3c07016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/19/2024]
Abstract
Boron-Nitrogen (B-N) Lewis adducts form a versatile family of compounds with numerous applications in functional molecules. Despite the growing interest in this family of compounds for optoelectronic applications, little is currently known about their photophysics and photochemistry. Even the electronic absorption spectrum of ammonia borane, the textbook example of a B-N Lewis adduct, is unavailable. Given the versatility of the light-induced processes exhibited by these molecules, we propose in this work a detailed theoretical study of the photochemistry and photophysics of simple B-N Lewis adducts. We used advanced techniques in computational photochemistry to identify and characterize the possible photochemical pathways followed by ammonia borane and extended this knowledge to the substituted B-N Lewis adducts pyridine-borane and pyridine-boric acid. The photochemistry observed for this series of molecules allows us to extract qualitative rules to rationalize the light-induced behavior of more complex B-N-containing molecules.
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Affiliation(s)
- Emanuele Marsili
- Centre for Computational Chemistry,
School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
| | - Basile F. E. Curchod
- Centre for Computational Chemistry,
School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
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4
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Kawashiro M, Mori T, Ito M, Ando N, Yamaguchi S. Photodissociative Modules that Control Dual-Emission Properties in Donor-π-Acceptor Organoborane Fluorophores. Angew Chem Int Ed Engl 2023; 62:e202303725. [PMID: 37014627 DOI: 10.1002/anie.202303725] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/05/2023]
Abstract
Donor-π-acceptor fluorophores that consist of an electron-donating amino group and an electron-accepting triarylborane moiety generally exhibit substantial solvatochromism in their fluorescence while retaining high fluorescence quantum yields even in polar media. Herein, we report a new family of this compound class, which bears ortho-P(=X)R2 -substituted phenyl groups (X=O or S) as a photodissociative module. The P=X moiety that intramolecularly coordinates to the boron atom undergoes dissociation in the excited state, giving rise to dual emission from the corresponding tetra- and tricoordinate boron species. The susceptibility of the systems to photodissociation depends on the coordination ability of the P=O and P=S moieties, whereby the latter facilitates dissociation. The intensity ratios of the dual emission bands are sensitive to environmental parameters, including temperature, solution polarity, and the viscosity of the medium. Moreover, precise tuning of the P(=X)R2 group and the electron-donating amino moiety led to single-molecule white emission in solution.
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Affiliation(s)
- Midori Kawashiro
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Tatsuya Mori
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masato Ito
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Naoki Ando
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8601, Japan
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5
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Sun Y, Ding H, Tang M, Wen J, Yue S, Peng Y, Zheng L, Shi Y, Cao Q. Multicolor Adjustable B-N Molecular Switches: Simple, Efficient, Portable, and Visual Identification of Butanol Isomers. Anal Chem 2023; 95:5594-5600. [PMID: 36942711 DOI: 10.1021/acs.analchem.2c05045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
As intelligent probes, dynamic and controllable molecular switches are useful tools for probing and intervening in life processes. However, the types and properties of molecular switches are still relatively single and often can only make two actions: "off" and "on". Therefore, the development of novel molecular switches with multiple colors and multiple instructions is very challenging. Herein, we propose a novel strategy based on the instability of the Lewis acid-base pair (boron (B) and nitrogen (N)), such as introducing the Schiff base (C═N) group into the aminoborane skeleton and preparing the novel molecular switches BN-HDZ and BN-HDZ-N. These two molecules were found to have good multicolor fluorescence switching capability for methanol. Surprisingly, the compound BN-HDZ-N shows unprecedented visual identification for the butanol isomers and could be made into a portable strip for simple and rapid visual identification of the four isomers of butanol, promising an alternative to conventional Lucas reagents. This provides a novel strategy for the design and fabrication of novel multicolor-tunable molecular switches with visual identification of isomers.
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Affiliation(s)
- Yitong Sun
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Huangting Ding
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Meng Tang
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Jingyi Wen
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Shiwen Yue
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Ye Peng
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Liyan Zheng
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Yonggang Shi
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Qiue Cao
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
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6
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Shi Y, Zeng Y, Kucheryavy P, Yin X, Zhang K, Meng G, Chen J, Zhu Q, Wang N, Zheng X, Jäkle F, Chen P. Dynamic B/N Lewis Pairs: Insights into the Structural Variations and Photochromism via Light-Induced Fluorescence to Phosphorescence Switching. Angew Chem Int Ed Engl 2022; 61:e202213615. [PMID: 36287039 DOI: 10.1002/anie.202213615] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Indexed: 11/18/2022]
Abstract
Ultralong afterglow emissions due to room-temperature phosphorescence (RTP) are of paramount importance in the advancement of smart sensors, bioimaging and light-emitting devices. We herein present an efficient approach to achieve rarely accessible phosphorescence of heavy atom-free organoboranes via photochemical switching of sterically tunable fluorescent Lewis pairs (LPs). LPs are widely applied in and well-known for their outstanding performance in catalysis and supramolecular soft materials but have not thus far been exploited to develop photo-responsive RTP materials. The intramolecular LP M1BNM not only shows a dynamic response to thermal treatment due to reversible N→B coordination but crystals of M1BNM also undergo rapid photochromic switching. As a result, unusual emission switching from short-lived fluorescence to long-lived phosphorescence (rad-M1BNM, τRTP =232 ms) is observed. The reported discoveries in the field of Lewis pairs chemistry offer important insights into their structural dynamics, while also pointing to new opportunities for photoactive materials with implications for fast responsive detectors.
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Affiliation(s)
- Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Yi Zeng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Pavel Kucheryavy
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ 07102, USA
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Guoyun Meng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Jinfa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Qian Zhu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Xiaoyan Zheng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ 07102, USA
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
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7
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Oshimizu R, Ando N, Yamaguchi S. Olefin–Borane Interactions in Donor–π–Acceptor Fluorophores that Undergo Frustrated‐Lewis‐Pair‐Type Reactions. Angew Chem Int Ed Engl 2022; 61:e202209394. [DOI: 10.1002/anie.202209394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Ryo Oshimizu
- Department of Chemistry Graduate School of Science Research Center of Materials Science (RCMS) Integrated Research Consortium on Chemical Science (IRCCS) Nagoya University Furo Chikusa Nagoya, 464-8602 Japan
| | - Naoki Ando
- Department of Chemistry Graduate School of Science Research Center of Materials Science (RCMS) Integrated Research Consortium on Chemical Science (IRCCS) Nagoya University Furo Chikusa Nagoya, 464-8602 Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry Graduate School of Science Research Center of Materials Science (RCMS) Integrated Research Consortium on Chemical Science (IRCCS) Nagoya University Furo Chikusa Nagoya, 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University Furo Chikusa Nagoya, 464-8601 Japan
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8
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Tian G, Chen JF, Zhang K, Shi Y, Li C, Yin X, Liu K, Chen P. Applying the B/N Lewis Pair Approach to Access Fusion-Expanded Binaphthyl-Based Chiral Analogues. Inorg Chem 2022; 61:15315-15319. [PMID: 36135458 DOI: 10.1021/acs.inorgchem.2c02875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We herein describe the synthesis of two axially chiral systems (HBN and BBN) by the incorporation of B centers into binaphthyl derivatives (HPy and BPy). Heteroatom-doped chiral polycyclic aromatic hydrocarbons were thus formed by fusion of the azaboroles to binaphthyls with the formation of B-N dative bonds. The resulting B-N Lewis pairs that serve as attractive fluorophores enabled modulation of the chiroptical properties both in solution and in the solid state.
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Affiliation(s)
- Guoqing Tian
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Jin-Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kanglei Liu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
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9
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Carmona M, Pérez R, Ferrer J, Rodríguez R, Passarelli V, Lahoz FJ, García-Orduña P, Carmona D. Activation of H-H, HO-H, C(sp 2)-H, C(sp 3)-H, and RO-H Bonds by Transition-Metal Frustrated Lewis Pairs Based on M/N (M = Rh, Ir) Couples. Inorg Chem 2022; 61:13149-13164. [PMID: 35948430 PMCID: PMC9406284 DOI: 10.1021/acs.inorgchem.2c01902] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Reaction of the dimers [(Cp*MCl)2(μ-Cl)2] (Cp* = η5-C5Me5)
with Ph2PCH2CH2NC(NH(p-Tolyl))2 (H2L) in the presence
of NaSbF6 affords the chlorido complexes [Cp*MCl(κ2N,P-H2L)][SbF6] (M = Rh, 1; Ir, 2).
Upon treatment with aqueous NaOH, solutions of 1 and 2 yield the corresponding complexes [Cp*M(κ3N,N′,P-HL)][SbF6] (M = Rh, 3; Ir, 4) in which the ligand HL presents a fac κ3N,N′,P coordination mode. Treatment of THF solutions
of complexes 3 and 4 with hydrogen gas,
at room temperature, results in the formation of the metal hydrido-complexes
[Cp*MH(κ2N,P-H2L)][SbF6] (M = Rh, 5;
Ir, 6) in which the N(p-Tolyl) group
has been protonated. Complexes 3 and 4 react
with deuterated water in a reversible fashion resulting in the gradual
deuteration of the Cp* group. Heating at 383 K THF/H2O
solutions of the complexes 3 and 4 affords
the orthometalated complexes [Cp*M(κ3C,N,P-H2L-H)][SbF6] [M = Rh, 7; Ir, 8, H2L-H = Ph2PCH2CH2NC(NH(p-Tolyl))(NH(4-C6H3Me))], respectively. At 333 K, complexes 3 and 4 react in THF with methanol, primary alcohols,
or 2-propanol giving the metal-hydrido complexes 5 and 6, respectively. The reaction involves the acceptorless dehydrogenation
of the alcohols at a relatively low temperature, without the assistance
of an external base. The new complexes have been characterized by
the usual analytical and spectroscopic methods including the X-ray
diffraction determination of the crystal structures of complexes 1–5, 7, and 8. Notably, the chlorido complexes 1 and 2 crystallize both as enantiopure conglomerates and as racemates.
Reaction mechanisms are proposed based on stoichiometric reactions,
nuclear magnetic resonance studies, and X-ray crystallography as well
as density functional theory calculations. In solution, masked transition-metal
frustrated Lewis pairs
(TMFLPs) give rise to the corresponding TMFLP species which activate
dihydrogen, water, and alcohols following FLP reaction pathways. When
D2O or alcohols with deuterated OH groups were employed,
H/D exchange at the Cp* ligand (involving C(sp3)−H
activation) was observed. C(sp2)−H bond activation
involving orthometalation of the p-Tolyl ring was
also observed.
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Affiliation(s)
- María Carmona
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Roberto Pérez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Joaquina Ferrer
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ricardo Rodríguez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Fernando J Lahoz
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Pilar García-Orduña
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Daniel Carmona
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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10
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Oshimizu R, Ando N, Yamaguchi S. Olefin–Borane Interactions in Donor–π–Acceptor Fluorophores that Undergo Frustrated‐Lewis‐Pair‐Type Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209394] [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)
| | - Naoki Ando
- Nagoya Daigaku Graduate School of Science JAPAN
| | - Shigehiro Yamaguchi
- Nagoya University Department of Chemistry Graduate School of Science Furo, Chikusa 464-8602 Nagoya JAPAN
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11
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Shi Y, Li C, Ma H, Cao Z, Liu K, Yin X, Wang N, Chen P. Two-in-One Approach toward White-Light Emissions of Dimeric B/N Lewis Pairs by Tuning the Ortho-Substitution Effect. Org Lett 2022; 24:5497-5502. [PMID: 35856805 DOI: 10.1021/acs.orglett.2c02344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new family of dimeric B/N Lewis pairs with sterically tunable substitutions has been accomplished using the Two-in-One design strategy. Their structures are characteristic of doubly B/N-containing cores, and the electronic interactions between B and N centers can be modulated by the steric effects of ortho-substitutions from methyl groups. Interestingly, unique white-light emissions were achieved for 2M'2BNM and 1M2BNM, ascribed to the integration of two triarylborane species (Bsp2- and Bsp3-hybridization) into one single molecule.
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Affiliation(s)
- Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
| | - Hongwei Ma
- Analysis & Testing Centre, Beijing Institute of Technology of China, Beijing 102488, China
| | - Zhao Cao
- School of Material Science & Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kanglei Liu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People's Republic of China
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12
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Li P, Shimoyama D, Zhang N, Jia Y, Hu G, Li C, Yin X, Wang N, Jäkle F, Chen P. A New Platform of B/N‐Doped Cyclophanes: Access to a π‐Conjugated Block‐Type B
3
N
3
Macrocycle with Strong Dipole Moment and Unique Optoelectronic Properties. Angew Chem Int Ed Engl 2022; 61:e202200612. [DOI: 10.1002/anie.202200612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Pengfei Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Daisuke Shimoyama
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Niu Zhang
- Analysis & Testing Centers Beijing Institute of Technology of China Beijing 102488 China
| | - Yawei Jia
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Guofei Hu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
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13
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Zhao F, Zhao J, Wang Y, Liu HT, Shang Q, Wang N, Yin X, Zheng X, Chen P. [5]Helicene-based chiral triarylboranes with large luminescence dissymmetry factors over a 10 -2 level: synthesis and design strategy via isomeric tuning of steric substitutions. Dalton Trans 2022; 51:6226-6234. [PMID: 35362491 DOI: 10.1039/d2dt00677d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Constructing chiral luminescent systems with both large luminescence dissymmetry factor (glum) and high luminous efficiency has been considered a great challenge. We herein describe a highly efficient approach to sterically stabilize the helical configurations of carbo[5]helicenes for improved CPL properties in a series of π-donor and π-acceptor substituted [5]helicenes (1, 2, 3, 4 and 5). Enabled by the ortho-installation of methyl groups as well as the steric effects of triarylamine (Ar3N) and triarylborane (Ar3B) handles in meta-substituted [5]helicenes, their optical resolution into enantiomers has been accomplished using preparative chiral HPLC. The molecular chirality of [5]helicenes can be transferred to Ar3B and Ar3N as light emitters, which allowed further investigations of their chiroptics, including optical rotation, circular dichroism (CD) and circularly polarized luminescence (CPL). Remarkably, 4 has been demonstrated to display dramatically enhanced CPL performance with a much larger glum (>1.2 × 10-2) and an increased emission quantum efficiency (ΦS = 0.75) compared with the other analogues, as a result of the isomeric tuning of substitutions with differential steric and electronic effects. These experimentally observed CPL activities were rationalized by TD-DFT computations for the angle (θμ,m) between electric and magnetic transition dipole moments in the excited states. In addition, the conspicuous intramolecular donor-acceptor charge transfer led to thermal responses in the emissions of 2 and 4 over a broad temperature range.
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Affiliation(s)
- Fei Zhao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Jingyi Zhao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Yu Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Hou-Ting Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, China
| | | | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Xiaoyan Zheng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China.
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14
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Murali AC, Nayak P, Venkatasubbaiah K. Recent advances in the synthesis of luminescent tetra-coordinated boron compounds. Dalton Trans 2022; 51:5751-5771. [PMID: 35343524 DOI: 10.1039/d2dt00160h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tetra-coordinated boron compounds offer a plethora of luminescent materials. Different chelation around the boron center (O,O-, N,C-, N,O-, and N,N-) has been explored to tune the electronic and photophysical properties of tetra-coordinated boron compounds. A number of fascinating molecules with interesting properties such as aggregation induced emission, mechanochromism and tunable emission by changing the solvent polarity were realised. Owing to their rich and unique properties, some of the molecules have shown applications in making optoelectronic devices, probes and so on. This perspective provides an overview of the recent developments of tetra-coordinated boron compounds and their potential applications.
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Affiliation(s)
- Anna Chandrasekar Murali
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Prakash Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
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15
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Nguyen T, Hannah T, Piers WE, Gelfand B. Stable, π-conjugated radical anions of boron-nitrogen dihydroindeno[1,2-b]fluorenes. CAN J CHEM 2022. [DOI: 10.1139/cjc-2022-0039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have recently reported the synthesis and application of boron-nitrogen dihydroindeno[1,2-b]fluorene derivatives as acceptors in organic photovoltaic (OPV) devices. Their modest observed efficiencies may be related to the properties of their reduced congeners. In this work, we report two new members of this family of compounds prepared via the electrophilic borylation of 2,5-di-p-tolylpyrazine followed by an arylation of the boron centre with ZnAr2 reagents. Two derivatives, 1 (Ar = 2,4,6-F3C6H2) and 2 (Ar = C6F5) were synthesized, and their radical anions, 1•− and 2•−, were formed via chemical reductions with CoCp*2 and CoCp2, respectively. Through comparison of structural parameters, as well as spectroscopic and computational data, the unpaired electron in the radical anions is localized in the planar core of the molecule, and dimerization is disfavored as a result. However, unlike the neutral starting materials, 1•− and 2•− are reactive towards ambient atmosphere. These observations suggest that the reduced compounds are stable towards intrinsic degradation pathways but subject to extrinsic degradation in device operation.
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Affiliation(s)
- Tony Nguyen
- University of Calgary, 2129, Chemistry, Calgary, Alberta, Canada
| | - Tyler Hannah
- University of Calgary, 2129, Chemistry, Calgary, Alberta, Canada
| | - Warren E. Piers
- University of Calgary, 2129, Chemistry, Calgary, Alberta, Canada
| | - Benjamin Gelfand
- University of Calgary, 2129, Chemistry, Calgary, Alberta, Canada
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16
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Li P, Shimoyama D, Zhang N, Jia Y, Hu G, Li C, Yin X, Wang N, Jäkle F, Chen P. A New Platform of B/N‐Doped Cyclophanes: Access to a π‐Conjugated Block‐Type B
3
N
3
Macrocycle with Strong Dipole Moment and Unique Optoelectronic Properties. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200612] [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)
- Pengfei Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Daisuke Shimoyama
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Niu Zhang
- Analysis & Testing Centers Beijing Institute of Technology of China Beijing 102488 China
| | - Yawei Jia
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Guofei Hu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
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17
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Li P, Jia Y, Zhang S, Di J, Zhang N, Chen P. Oligotriarylamine-Extended Organoboranes with Tunable Electron-Donating Strength by Changing the Number of Donor Units. Inorg Chem 2022; 61:3951-3958. [PMID: 35201745 DOI: 10.1021/acs.inorgchem.1c03578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Triarylborane (Ar3B) and triarylamine (Ar3N) have been widely employed to construct electronically different donor-acceptor (D-A) systems. Herein, we describe a series of A-D-A-type luminescent organoboranes L-B2Nn (n = 1, 3, 5) that show an increased number of Ar3N units as electron donors and two terminal Ar3B as acceptors. When the Ar3N moieties were extended from one to five units, their electron-donating strength was gradually enhanced and the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energy gaps could also be tuned, which was further reflected in the red-shifted emissions from blue (λem = 458 nm) to orange (λem = 595 nm) with a decrease in Egap(elect) from 3.19 to 2.61 eV. L-B2N5 showed a huge Stokes shift (∼14 057 cm-1) and a considerably bright emission with an enhanced solid-state quantum efficiency (ΦS = 98%) compared with the other members. L-B2N3 and L-B2N5 exhibited aggregation-induced emissions (AIEs), and an apparent solvatochromic shift was also observed in the emission spectra as the solvent was changed from hexane to tetrahydrofuran (THF) (430 → 595 nm). In addition, the donor-acceptor charge-transfer character in these organoboranes caused a thermally responsive emission over a broad range.
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Affiliation(s)
- Pengfei Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Yawei Jia
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Songhe Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Jiaqi Di
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Niu Zhang
- Analysis & Testing Center, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
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18
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Harders P, Griebenow T, Businski A, Kaus AJ, Pietsch L, Näther C, McConnell A. The Dynamic Covalent Chemistry of Amidoboronates: Tuning the rac5/rac6 Ratio via the B‑N and B‐O Dynamic Covalent Bonds. Chempluschem 2022; 87:e202200022. [DOI: 10.1002/cplu.202200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/07/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Patrick Harders
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Thomas Griebenow
- Christian Albrechts Universität zu Kiel: Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Artjom Businski
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Anton J. Kaus
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Lorenz Pietsch
- Christian-Albrechts-Universitat zu Kiel Otto Diels Institute of Organic Chemistry GERMANY
| | - Christian Näther
- Christian-Albrechts-Universitat zu Kiel Institute of Inorganic Chemistry GERMANY
| | - Anna McConnell
- Kiel University Institute of Organic Chemistry Otto-Hahn-Platz 4 24098 Kiel GERMANY
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19
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Zhang S, Chen JF, Hu G, Zhang N, Wang N, Yin X, Chen P. Synthesis, Characterization, and Photophysical Properties of Triptycene-Based Chiral Organoboranes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Songhe Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Jin-Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Guofei Hu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Niu Zhang
- Analysis & Testing Centre, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
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20
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Chen JF, Yin X, Zhang K, Zhao Z, Zhang S, Zhang N, Wang N, Chen P. Pillar[5]arene-Based Dual Chiral Organoboranes with Allowed Host-Guest Chemistry and Circularly Polarized Luminescence. J Org Chem 2021; 86:12654-12663. [PMID: 34449233 DOI: 10.1021/acs.joc.1c01175] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We first describe two examples of highly luminescent organoboranes (NP5BN1 and NP5BN2) with dual chirality that were achieved by molecular functionalization of planar chiral pillar[5]arenes with naphthyls. Sufficiently strong steric effects are imposed by triarylamine (Ar3N) and triarylborane (Ar3B) moieties and further enhanced by the proximity of the chiral building blocks, leading to the isolation of multiple enantiomers via chiral high-performance liquid chromatography. The intramolecular charge transfer from N-donor to B-acceptor across both chiral subunits enabled the circularly polarized luminescence and thermally robust colorimetric responses in their emissions. Furthermore, their remarkable host-guest chemistry was allowed at no expense in the pursuit of advanced chiroptical properties using pillar[5]arene-based supramolecular scaffolds.
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Affiliation(s)
- Jin-Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Zhenhui Zhao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Songhe Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Niu Zhang
- Analysis & Testing Centre, Beijing Institute of Technology of China, Beijing 102488, China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China.,College of Materials and Chemical Engineering, Key laboratory of inorganic nonmetallic crystalline and energy conversion materials, China Three Gorges University, Yichang 443002, P. R. China
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21
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Ito S. Recent Advances in Mechanochromic Luminescence of Organic Crystalline Compounds. CHEM LETT 2021. [DOI: 10.1246/cl.200874] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Suguru Ito
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
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22
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Min Y, Dou C, Tian H, Liu J, Wang L. Isomers of B←N‐Fused Dibenzo‐azaacenes: How B←N Affects Opto‐electronic Properties and Device Behaviors? Chemistry 2021; 27:4364-4372. [DOI: 10.1002/chem.202004615] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/20/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Yang Min
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Science 5625 Renmin Rd. Changchun 130022 China
- University of Chinese Academy of Science 19(A) Yuquan Road Beijing 100049 China
| | - Chuandong Dou
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Science 5625 Renmin Rd. Changchun 130022 China
| | - Hongkun Tian
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Science 5625 Renmin Rd. Changchun 130022 China
| | - Jun Liu
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Science 5625 Renmin Rd. Changchun 130022 China
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Science 5625 Renmin Rd. Changchun 130022 China
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23
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Lei P, Zhang S, Zhang N, Yin X, Wang N, Chen P. Triptycene-Based Luminescent Materials in Homoconjugated Charge-Transfer Systems: Synthesis, Electronic Structures, AIE Activity, and Highly Tunable Emissions. ACS OMEGA 2020; 5:28606-28614. [PMID: 33195912 PMCID: PMC7658946 DOI: 10.1021/acsomega.0c03565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
We have developed a new family of luminescent materials featuring through-space charge transfer from electron donors to acceptors that are electronically separated by triptycene. Most of these molecules are highly fluorescent, and modulation of their emissions was achieved by tuning the electron-accepting strength in a range from the weak triptycene acceptor over triarylborane (BMes) to strongly accepting naphthalimide (Npa) moieties. Pz-Pz shows an aggregation-induced emission in aggregates and in the solid state coupled with a highly red-shifted broad emission (ca. 160 nm) of the excimer, indicating that phenothiazine (Pz) also plays a vital role in the emission responses as an electron donor. This work may help develop new approaches to photophysical mechanism based on the rigid, homoconjugated, and structurally unusual 3D triptycene scaffold.
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Affiliation(s)
- Puyi Lei
- Beijing
Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,
Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical
Engineering, Beijing Institute of Technology
of China, Beijing 102488, People’s Republic
of China
| | - Songhe Zhang
- Beijing
Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,
Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical
Engineering, Beijing Institute of Technology
of China, Beijing 102488, People’s Republic
of China
| | - Niu Zhang
- Analysis
and Testing Centre, Beijing Institute of
Technology of China, Beijing 102488, People’s Republic
of China
| | - Xiaodong Yin
- Beijing
Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,
Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical
Engineering, Beijing Institute of Technology
of China, Beijing 102488, People’s Republic
of China
| | - Nan Wang
- Beijing
Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,
Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical
Engineering, Beijing Institute of Technology
of China, Beijing 102488, People’s Republic
of China
| | - Pangkuan Chen
- Beijing
Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials,
Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical
Engineering, Beijing Institute of Technology
of China, Beijing 102488, People’s Republic
of China
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24
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Biglari Z, Fallah V. Influence of BN-orientation pattern at spoke location of corannulene on electro-optical properties and aromaticity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Ji G, Wang N, Yin X, Chen P. Substituent Effect Induces Emission Modulation of Stilbene Photoswitches by Spatial Tuning of the N/B Electronic Constraints. Org Lett 2020; 22:5758-5762. [DOI: 10.1021/acs.orglett.0c01777] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guangqian Ji
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, P. R. China
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26
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Chen J, Yin X, Wang B, Zhang K, Meng G, Zhang S, Shi Y, Wang N, Wang S, Chen P. Planar Chiral Organoboranes with Thermoresponsive Emission and Circularly Polarized Luminescence: Integration of Pillar[5]arenes with Boron Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001145] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jin‐Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Bowen Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Guoyun Meng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Songhe Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Suning Wang
- Department of Chemistry Queen's University Kingston Ontario K7L 3N6 Canada
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
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27
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Chen J, Yin X, Wang B, Zhang K, Meng G, Zhang S, Shi Y, Wang N, Wang S, Chen P. Planar Chiral Organoboranes with Thermoresponsive Emission and Circularly Polarized Luminescence: Integration of Pillar[5]arenes with Boron Chemistry. Angew Chem Int Ed Engl 2020; 59:11267-11272. [PMID: 32220121 DOI: 10.1002/anie.202001145] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/27/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Jin‐Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Bowen Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Guoyun Meng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Songhe Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
| | - Suning Wang
- Department of Chemistry Queen's University Kingston Ontario K7L 3N6 Canada
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster Science of the Ministry of Education School of Chemistry and Chemical Engineering Beijing Institute of Technology of China Beijing 102488 China
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28
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Shimizu T, Kawachi A. Synthesis, reactions, and photophysical properties of o-(alkoxysilyl)(borafluorenyl)benzenes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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29
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Vidal F, Gomezcoello J, Lalancette RA, Jäkle F. Lewis Pairs as Highly Tunable Dynamic Cross-Links in Transient Polymer Networks. J Am Chem Soc 2019; 141:15963-15971. [DOI: 10.1021/jacs.9b07452] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Fernando Vidal
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - John Gomezcoello
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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30
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Ishibashi JSA, Darrigan C, Chrostowska A, Li B, Liu SY. A BN anthracene mimics the electronic structure of more highly conjugated systems. Dalton Trans 2019; 48:2807-2812. [PMID: 30734032 DOI: 10.1039/c9dt00481e] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
9a,9-BN anthracene was synthesized using a simple three-step sequence involving intramolecular electrophilic borylation of 2-benzylpyridines. The same procedure can be applied to yield a number of substituted 9a,9-BN anthracenes. Spectroscopic characterization of the parental compound (UV-photoelectron spectroscopy, UV-vis absorption/emission) shows an electronic structure more similar to that of a larger conjugated system rather than anthracene, the direct all-carbon analogue.
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Affiliation(s)
- Jacob S A Ishibashi
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA.
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31
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Sun CJ, Wang N, Peng T, Yin X, Wang S, Chen P. BN-Functionalized Benzotrithiophene-Based Azaborines: Synthesis, Structures, and Anion Binding Properties. Inorg Chem 2019; 58:3591-3595. [DOI: 10.1021/acs.inorgchem.8b03579] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Chao-Jing Sun
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Tai Peng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
| | - Suning Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
- Department of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, People’s Republic of China
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32
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Abstract
Representative types of boron-based molecular systems that respond to external stimuli such as temperature, pressure, light, or chemicals (oxygen, acid, base etc.) are described in this review article. The boron molecules are classified according to their operating mechanisms, with emphasis on systems, which are based on switchable boron-donor bonds and switchable excited states.
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Affiliation(s)
- Soren K. Mellerup
- Department of Chemistry
- Queen's University
- Kingston
- Canada
- Institut für Anorganische Chemie
| | - Suning Wang
- Department of Chemistry
- Queen's University
- Kingston
- Canada
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
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33
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Ito S, Nishimoto C, Nagai S. Sequential halochromic/mechanochromic luminescence of pyridyl-substituted solid-state emissive dyes: thermally controlled stepwise recovery of the original emission color. CrystEngComm 2019. [DOI: 10.1039/c9ce01037h] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stepwise temperature-controlled emission-color switch has been achieved in a system that combines halochromic and mechanochromic luminescence in series.
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Affiliation(s)
- Suguru Ito
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Chika Nishimoto
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Sayaka Nagai
- Department of Advanced Materials Chemistry
- Graduate School of Engineering
- Yokohama National University
- Yokohama 240-8501
- Japan
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34
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Arsenault NE, Xu Z, Wolf MO. Solvent- and Temperature-Responsive Platinum(II)-Functionalized Flexible Lewis Pairs. Inorg Chem 2018; 58:65-68. [DOI: 10.1021/acs.inorgchem.8b03053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Nicole E. Arsenault
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Zhen Xu
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Michael O. Wolf
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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35
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Zhu C, Ji X, You D, Chen TL, Mu AU, Barker KP, Klivansky LM, Liu Y, Fang L. Extraordinary Redox Activities in Ladder-Type Conjugated Molecules Enabled by B ← N Coordination-Promoted Delocalization and Hyperconjugation. J Am Chem Soc 2018; 140:18173-18182. [PMID: 30507169 DOI: 10.1021/jacs.8b11337] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The introduction of B ← N coordinate bond-isoelectronic to C-C single bond-into π-systems represents a promising strategy to impart exotic redox and electrochromic properties into conjugated organic molecules and macromolecules. To achieve both reductive and oxidative activities using this strategy, a cruciform ladder-type molecular constitution was designed to accommodate oxidation-active, reduction-active, and B ← N coordination units into a compact structure. Two such compounds (BN-F and BN-Ph) were synthesized via highly efficient N-directed borylation. These molecules demonstrated well-separated, two reductive and two oxidative electron-transfer processes, corresponding to five distinct yet stable oxidation states, including a rarely observed boron-containing radical cation. Spectroelectrochemical measurements revealed unique optical characteristics for each of these reduced/oxidized species, demonstrating multicolor electrochromism with excellent recyclability. Distinct color changes were observed between each redox state with clear isosbestic points on the absorption spectra. The underlying redox mechanism was elucidated by a combination of computational and experimental investigations. Single-crystal X-ray diffraction analysis on the neutral state, the oxidized radical cation, and the reduced dianion of BN-Ph revealed structural transformations into two distinct quinonoid constitutions during the oxidation and reduction processes, respectively. B ← N coordination played an important role in rendering the robust and reversible multistage redox properties, by extending the charge and spin delocalization, by modulating the π-electron density, and by a newly established hyperconjugation mechanism.
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Affiliation(s)
| | | | | | - Teresa L Chen
- The Molecular Foundry , Lawrence Berkeley National Laboratory , One Cyclotron Road, Berkeley , California 94720 , United States
| | | | | | - Liana M Klivansky
- The Molecular Foundry , Lawrence Berkeley National Laboratory , One Cyclotron Road, Berkeley , California 94720 , United States
| | - Yi Liu
- The Molecular Foundry , Lawrence Berkeley National Laboratory , One Cyclotron Road, Berkeley , California 94720 , United States
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