1
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Nipate AB, Rajeswara Rao M. Solid-state red-emissive (cyano)vinylene heteroaromatics via Pd-catalysed C-H homocoupling. Org Biomol Chem 2023; 21:4123-4129. [PMID: 37129043 DOI: 10.1039/d3ob00560g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Thiophene-based π-conjugated systems are important materials for organic electronics; thus, their synthesis is of topical interest. We report fluorescent thiophene/furan-based vinylene and cyanovinylene systems via Pd-catalysed homocoupling [Pd(OAc)2, pivalic acid, KOAc, DMAc, 140 °C]. The methodology is versatile and allows the development of a variety of π-conjugated systems without the need for pre-functionalized building units. The reaction tolerates electron-rich, electron-deficient and large π-conjugated substrates. The developed compounds absorb in the visible region (400-515 nm) and emit green to orange fluorescence in the solution state (510-600 nm). Most importantly, the compounds exhibit strong aggregation-induced emission (AIE) in the NIR region (λem = 650 nm), with quantum yields reaching up to 10%. Steric hindrance imparted by vinylene/cyanovinylene units is responsible for the strong solid-state luminescence. DFT-optimized structures reveal an apparent twist of 20-40° in the molecular backbone of the compounds, supporting the AIE behaviour of the compounds.
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Affiliation(s)
- Atul B Nipate
- Department of Chemistry, IIT Dharwad, Dharwad-580011, Karnataka, India.
| | - M Rajeswara Rao
- Department of Chemistry, IIT Dharwad, Dharwad-580011, Karnataka, India.
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2
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Bao R, Xiang Z, Qiao Z, Yang Y, Zhang Y, Cao D, Wang S. Designing Thiophene-Enriched Fully Conjugated 3D Covalent Organic Framework as Metal-Free Oxygen Reduction Catalyst for Hydrogen Fuel Cells. Angew Chem Int Ed Engl 2023; 62:e202216751. [PMID: 36428273 DOI: 10.1002/anie.202216751] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 11/27/2022]
Abstract
The application of three-dimensional (3D) covalent organic frameworks (COFs) in renewable energy fields is greatly limited due to their non-conjugated skeletons. Here, we design and successfully synthesize a thiophene-enriched fully conjugated 3D COF (BUCT-COF-11) through an all-thiophene-linked saddle-shaped building block (COThTh-CHO). The BUCT-COF-11 exhibits excellent semiconducting property with intrinsic metal-free oxygen reduction reaction (ORR) activity. Using the COF as cathode catalyst, the assembled anion-exchange membrane fuel cells (AEMFCs) exhibited a high peak power density up to 493 mW cm-2 . DFT calculations reveal that thiophene introduction in the COF not only improves the conductivity but also optimizes the electronic structure of the sample, which therefore boosts the ORR performance. This is the first report on the application of COFs as metal-free catalysts in fuel cells, demonstrating the great potential of fully conjugated 3D COFs as promising semiconductors in energy fields.
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Affiliation(s)
- Rui Bao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhehao Xiang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zelong Qiao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yongping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuting Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shitao Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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3
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Romashev NF, Bakaev IV, Komlyagina VI, Sokolov MN, Gushchin AL. SYNTHESIS AND STRUCTURE OF PALLADACYCLOPENTADIENYL COMPLEX WITH ACENAPHTHENE-1,2-DIIMINE LIGAND. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662208011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Wang Y, Zhang Y, Wang S, Cao D. Saddle-Shaped Building Blocks: A New Concept for Designing Fully Conjugated 3D Organic Semiconducting Materials. Chemistry 2021; 27:12012-12018. [PMID: 34042231 DOI: 10.1002/chem.202101326] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Indexed: 12/14/2022]
Abstract
Currently, most organic semiconducting materials (OSMs) are π-conjugated structures in one or two dimension (2D), where the lack of layer-layer π-conjugation connection greatly blocks their electron delocalization and transport. The 3D fully conjugated materials could solve this issue because they can provide efficient charge-transport pathways throughout the whole 3D skeleton, in which the suitable 3D building block is the key to the development of fully conjugated 3D OSMs. Cyclooctatetraene (COT) and its derivatives are good candidates due to their π-conjugation with 3D saddle-shaped architecture. In this Concept, we discuss the key features of saddle-shaped COT-based derivatives and their synthetic strategy, then we present the current development of using the COT derivatives as building blocks to construct the 3D fully conjugated organic small compound- and polymer-based OSMs. The properties and perspectives of these OSMs in photovoltaics, electro-catalysis and electrical conductivities are also discussed. These recent advances in the developing 3D fully conjugated materials could potentially open up a new frontier in the design of OSMs.
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Affiliation(s)
- Yaqin Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuting Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shitao Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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5
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Casadio DS, Aikonen S, Lenarda A, Nieger M, Hu T, Taubert S, Sundholm D, Muuronen M, Wirtanen T, Helaja J. Divergent Carbocatalytic Routes in Oxidative Coupling of Benzofused Heteroaryl Dimers: A Mechanistic Update. Chemistry 2021; 27:5283-5291. [PMID: 33427343 PMCID: PMC8048508 DOI: 10.1002/chem.202005433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 12/27/2022]
Abstract
Mildly thermal air or HNO3 oxidized activated carbons catalyse oxidative dehydrogenative couplings of benzo[b]fused heteroaryl 2,2'-dimers, e.g., 2-(benzofuran-2-yl)-1H-indole, to chiral 3,3'-coupled cyclooctatetraenes or carbazole-type migrative products under O2 atmosphere. DFT calculations show that the radical cation and the Scholl-type arenium cation mechanisms lead to different products with 2-(benzofuran-2-yl)-1H-indole, being in accord with experimental product distributions.
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Affiliation(s)
- David S. Casadio
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Santeri Aikonen
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Anna Lenarda
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Martin Nieger
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Tao Hu
- Research Unit of Sustainable ChemistryFaculty of TechnologyUniversity of Oulu90014OuluFinland
| | - Stefan Taubert
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Dage Sundholm
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Mikko Muuronen
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Tom Wirtanen
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
| | - Juho Helaja
- Department of ChemistryUniversity of HelsinkiA. I. Virtasen aukio 1, P.O. Box 5500014HelsinkiFinland
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6
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Wang S, Da L, Hao J, Li J, Wang M, Huang Y, Li Z, Liu Z, Cao D. A Fully Conjugated 3D Covalent Organic Framework Exhibiting Band‐like Transport with Ultrahigh Electron Mobility. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100464] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shitao Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Ling Da
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Jinsong Hao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Jin Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Mao Wang
- Department of Chemistry and Molecular Biology University of Gothenburg Kemigården 4 41296 Gothenburg Sweden
| | - Yan Huang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Zexu Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Zhiping Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Dapeng Cao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
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7
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Wang S, Da L, Hao J, Li J, Wang M, Huang Y, Li Z, Liu Z, Cao D. A Fully Conjugated 3D Covalent Organic Framework Exhibiting Band‐like Transport with Ultrahigh Electron Mobility. Angew Chem Int Ed Engl 2021; 60:9321-9325. [DOI: 10.1002/anie.202100464] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Shitao Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Ling Da
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Jinsong Hao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Jin Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Mao Wang
- Department of Chemistry and Molecular Biology University of Gothenburg Kemigården 4 41296 Gothenburg Sweden
| | - Yan Huang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Zexu Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Zhiping Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Dapeng Cao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
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8
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Ferlin F, Yetra SR, Warratz S, Vaccaro L, Ackermann L. Reusable Pd@PEG Catalyst for Aerobic Dehydrogenative C-H/C-H Arylations of 1,2,3-Triazoles. Chemistry 2019; 25:11427-11431. [PMID: 31306515 DOI: 10.1002/chem.201902901] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/11/2019] [Indexed: 01/22/2023]
Abstract
Dehydrogenative C-H arylations of 1,2,3-triazoles were accomplished with the aid of a reusable palladium catalyst in PEG. The widely applicable oxidative palladium catalysis enabled the synthesis of fully decorated 1,2,3-triazoles with a broad functional-group tolerance and ample substrate scope. The sustainability of the aerobic C-H arylation was reflected by the use of PEG as green reaction medium and demonstrated by recycling studies of the catalyst and the reaction medium.
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Affiliation(s)
- Francesco Ferlin
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany.,Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Santhivardhana Reddy Yetra
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Luigi Vaccaro
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
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9
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Takeda T, Ozawa M, Akutagawa T. Jumping Crystal of a Hydrogen‐Bonded Organic Framework Induced by the Collective Molecular Motion of a Twisted π System. Angew Chem Int Ed Engl 2019; 58:10345-10352. [DOI: 10.1002/anie.201905075] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Takashi Takeda
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University Katahira 2-1-1, Aoba-ku Sendai Miyagi 980-8577 Japan
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
| | - Masataka Ozawa
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University Katahira 2-1-1, Aoba-ku Sendai Miyagi 980-8577 Japan
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
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10
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Takeda T, Ozawa M, Akutagawa T. Jumping Crystal of a Hydrogen‐Bonded Organic Framework Induced by the Collective Molecular Motion of a Twisted π System. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905075] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takashi Takeda
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University Katahira 2-1-1, Aoba-ku Sendai Miyagi 980-8577 Japan
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
| | - Masataka Ozawa
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University Katahira 2-1-1, Aoba-ku Sendai Miyagi 980-8577 Japan
- Department of Applied ChemistryGraduate School of EngineeringTohoku University Sendai Miyagi 980-8579 Japan
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11
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Lücht A, Jones PG, Werz DB. Reactions of 3,3′-Linked Bispyrroles with Carbon Electrophiles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900106] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Alexander Lücht
- Institut für Organische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Institut für Organische Chemie; Technische Universität Braunschweig; Hagenring 30 38106 Braunschweig Germany
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