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BinSabt MH, Al-Matar HM, Balch AL, Shalaby MA. Synthesis and Electrochemistry of Novel Dumbbell-Shaped Bis-pyrazolino[60]fullerene Derivatives Formed Using Microwave Radiation. ACS OMEGA 2021; 6:20321-20330. [PMID: 34395980 PMCID: PMC8358937 DOI: 10.1021/acsomega.1c02245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The design of covalently linked [60]fullerene dimers has gained increased attention, as the linked electron donors or acceptors are in close proximity to the surface of the C60, providing a valuable approach to novel molecular electronic devices. Herein, new compounds involving C60 dumbbells covalently connected by the π-conjugated system from azobenzene and diaryl ether linkers were synthesized following the bifunctional cycloaddition reactions to C60 using microwave radiation. The structural identity of the fullerene dimers has been determined using spectroscopic techniques including Fourier transform infrared (FT-IR), matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF), and NMR spectroscopy, and the photophysical and the electrochemical properties for the new dumbbells have been examined using UV-vis spectroscopy, fluorescence spectroscopy, cyclic voltammetry, and square wave voltammetry. Both new dimers show electronic interaction with the fullerene cage and higher electron affinity than the pristine C60.
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Affiliation(s)
- Mohammad H. BinSabt
- Chemistry
Department, Faculty of Science, University
of Kuwait, P.O. Box 5969, Safat 13060, Kuwait
| | - Hamad M. Al-Matar
- Chemistry
Department, Faculty of Science, University
of Kuwait, P.O. Box 5969, Safat 13060, Kuwait
| | - Alan L. Balch
- Department
of Chemistry, University of California at
Davis, One Shields Avenue, Davis, California 95616, United States
| | - Mona A. Shalaby
- Chemistry
Department, Faculty of Science, University
of Kuwait, P.O. Box 5969, Safat 13060, Kuwait
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Li H, Komatsu R, Hankache J, Sasabe H, Lawson Daku LM, Özen B, Chen S, Hauser J, Hauser A, Decurtins S, Kido J, Liu SX. Bis(Triphenylamine)Benzodifuran Chromophores: Synthesis, Electronic Properties and Application in Organic Light-Emitting Diodes. Front Chem 2021; 9:721272. [PMID: 34368088 PMCID: PMC8333860 DOI: 10.3389/fchem.2021.721272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/08/2021] [Indexed: 11/13/2022] Open
Abstract
A series of bis(triphenylamine)benzodifuran chromophores have been synthesized and fully characterised. Starting from suitably functionalized benzodifuran (BDF) precursors, two triphenylamine (TPA) moieties are symmetrically coupled to a central BDF unit either at 4,8-positions through double bonds (1) and single bonds (2) respectively, or at 2,6-positions through double bonds (3). Their electronic absorption and photoluminescence properties as well as redox behaviour have been investigated in detail, indicating that the π-extended conjugation via vinyl linkers in 1 and 3 leads to comparatively strong electronic interactions between the relevant redox moieties TPA and BDF. Due to intriguing electronic properties and structural planarity, 3a has been applied as a dopant emitter in organic light-emitting diodes. A yellowish-green OLED exhibits a high external quantum efficiency (EQE) of 6.2%, thus exceeding the theoretical upper limit most likely due to energy transfer from an interface exciplex to an emissive layer and/or favorable horizontal orientation.
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Affiliation(s)
- Hui Li
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Ryutaro Komatsu
- Department of Organic Device Engineering Research Center for Organic Electronics, Yamagata University, Yamagata, Japan
| | - Jihane Hankache
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
| | - Hisahiro Sasabe
- Department of Organic Device Engineering Research Center for Organic Electronics, Yamagata University, Yamagata, Japan
| | | | - Bilal Özen
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Songjie Chen
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Jürg Hauser
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Andreas Hauser
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
| | - Silvio Decurtins
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Junji Kido
- Department of Organic Device Engineering Research Center for Organic Electronics, Yamagata University, Yamagata, Japan
| | - Shi-Xia Liu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
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Efficient Energy-Conversion Materials for the Future: Understanding and Tailoring Charge-Transfer Processes in Carbon Nanostructures. Chem 2016. [DOI: 10.1016/j.chempr.2016.09.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Rotas G, Martín-Gomis L, Ohkubo K, Fernández-Lázaro F, Fukuzumi S, Tagmatarchis N, Sastre-Santos Á. Axially Substituted Silicon Phthalocyanine as Electron Donor in a Dyad and Triad with Azafullerene as Electron Acceptor for Photoinduced Charge Separation. Chemistry 2016; 22:15137-15143. [PMID: 27595991 DOI: 10.1002/chem.201603065] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Indexed: 12/24/2022]
Abstract
The synthesis of a donor-acceptor silicon phthalocyanine (SiPc)-azafullerene (C59 N) dyad 1 and of the first acceptor-donor-acceptor C59 N-SiPc-C59 N dumbbell triad 2 was accomplished. The two C59 N-based materials were comprehensively characterized with the aid of NMR spectroscopy, MALDI-MS as well as DFT calculations and their redox and photophysical properties were evaluated with CV and steady-state and time-resolved absorption and photoluminescence spectroscopy measurements. Notably, femtosecond transient absorption spectroscopy assays revealed that both dyad 1 and triad 2 undergo, after selective photoexcitation of the SiPc moiety, photoinduced electron transfer from the singlet excited state of the SiPc moiety to the azafullerene counterpart to produce the charge-separated state, with lifetimes of 660 ps, in the case of dyad 1, and 810 ps, in the case of triad 2. The current results are expected to have significant implications en route to the design of advanced C59 N-based donor-acceptor systems targeting energy conversion applications.
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Affiliation(s)
- Georgios Rotas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 116 35 Athens, Greece
| | - Luis Martín-Gomis
- División de Química Orgánica Instituto de Bioingeniería, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03203, Elche, Spain
| | - Kei Ohkubo
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.,Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, Korea
| | - Fernando Fernández-Lázaro
- División de Química Orgánica Instituto de Bioingeniería, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03203, Elche, Spain
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, Korea. .,Faculty of Science and Technology, Meijo University, SENTAN, Japan Science and Technology Agency (JST), Nagoya, Aichi, 468-8502, Japan.
| | - Nikos Tagmatarchis
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 116 35 Athens, Greece.
| | - Ángela Sastre-Santos
- División de Química Orgánica Instituto de Bioingeniería, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03203, Elche, Spain.
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Schubert C, Margraf JT, Clark T, Guldi DM. Molecular wires – impact of π-conjugation and implementation of molecular bottlenecks. Chem Soc Rev 2015; 44:988-98. [DOI: 10.1039/c4cs00262h] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We highlight recent progress in the field of electron transport through molecular bridges as integrative parts of electron donor–bridge–acceptor conjugates.
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Affiliation(s)
- C. Schubert
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
| | - J. T. Margraf
- Computer-Chemie-Centrum
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91052 Erlangen
- Germany
| | - T. Clark
- Computer-Chemie-Centrum
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91052 Erlangen
- Germany
| | - D. M. Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM)
- Friedrich-Alexander-Universität Erlangen-Nürnberg
- 91058 Erlangen
- Germany
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Li H, Yi C, Moussi S, Liu SX, Daul C, Grätzel M, Decurtins S. Benzo[1,2-b:4,5-b′]difuran-based sensitizers for dye-sensitized solar cells. RSC Adv 2013. [DOI: 10.1039/c3ra43669a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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