1
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Ji L, Riese S, Schmiedel A, Holzapfel M, Fest M, Nitsch J, Curchod BFE, Friedrich A, Wu L, Al Mamari HH, Hammer S, Pflaum J, Fox MA, Tozer DJ, Finze M, Lambert C, Marder TB. Thermodynamic equilibrium between locally excited and charge-transfer states through thermally activated charge transfer in 1-(pyren-2'-yl)- o-carborane. Chem Sci 2022; 13:5205-5219. [PMID: 35655553 PMCID: PMC9093154 DOI: 10.1039/d1sc06867a] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/24/2022] [Indexed: 02/02/2023] Open
Abstract
Reversible conversion between excited-states plays an important role in many photophysical phenomena. Using 1-(pyren-2'-yl)-o-carborane as a model, we studied the photoinduced reversible charge-transfer (CT) process and the thermodynamic equilibrium between the locally-excited (LE) state and CT state, by combining steady state, time-resolved, and temperature-dependent fluorescence spectroscopy, fs- and ns-transient absorption, and DFT and LR-TDDFT calculations. Our results show that the energy gaps and energy barriers between the LE, CT, and a non-emissive 'mixed' state of 1-(pyren-2'-yl)-o-carborane are very small, and all three excited states are accessible at room temperature. The internal-conversion and reverse internal-conversion between LE and CT states are significantly faster than the radiative decay, and the two states have the same lifetimes and are in thermodynamic equilibrium.
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Affiliation(s)
- Lei Ji
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Northwestern Polytechnical University 127 West Youyi Road Xi'an Shaanxi China .,Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Stefan Riese
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Alexander Schmiedel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Marco Holzapfel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Maximillian Fest
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Jörn Nitsch
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Basile F E Curchod
- Department of Chemistry, University of Durham South Road Durham DH1 3LE UK
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Lin Wu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Northwestern Polytechnical University 127 West Youyi Road Xi'an Shaanxi China
| | - Hamad H Al Mamari
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Department of Chemistry, College of Science, Sultan Qaboos University PO Box 36, Al Khoudh 123 Muscat Sultanate of Oman
| | - Sebastian Hammer
- Experimentelle Physik VI, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Jens Pflaum
- Experimentelle Physik VI, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Mark A Fox
- Department of Chemistry, University of Durham South Road Durham DH1 3LE UK
| | - David J Tozer
- Department of Chemistry, University of Durham South Road Durham DH1 3LE UK
| | - Maik Finze
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Christoph Lambert
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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2
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Feng W, Liu K, Zang J, Wang G, Miao R, Ding L, Liu T, Kong J, Fang Y. Flexible and Transparent Oligothiophene- o-Carborane-Containing Hybrid Films for Nonlinear Optical Limiting Based on Efficient Two-Photon Absorption. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28985-28995. [PMID: 34121390 DOI: 10.1021/acsami.1c07835] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Structure-property relationship for fluorophores with favorable nonlinear optical (NLO) properties are promising topics in organic chemistry and material science. Herein, a series of terthiophene-o-carborane dyads and triads covalently linked with different end-capping styles were readily synthesized and comprehensively investigated. Quantitative values of the crystal and packing structures, photophysical parameters including aggregation-induced emission (AIE) and two-photon absorption (2PA) were provided. Significant impact of carborane unit for introducing the AIE characteristic has been investigated in contrast to the parent oligothiophene. All the obtained fluorophores exhibit maximum absorption around 370 nm in THF and emit bright reddish photoluminscence with absolute fluorescence quantum yields above 16% in solid states. Intramolecular charge communication between oligothiophene and carborane plays important roles in the related NLO properties. These results are supported well by the time-dependent DFT theoretical calculations. Effective 2PA cross sections (δ2PA = 95-355 GM@650 nm) and transition dipole moments of the derivatives are variable for different end-capping styles. Their potential applications as optical limiting materials based on the 2PA mechanism in solutions and doped PDMS films were further evaluated. Taken together, this work provides an understanding of their structure-property relationship, and flexible PDMS films as outstanding candidates for practical applications in optical limiting.
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Affiliation(s)
- Wan Feng
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Ke Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Jianyang Zang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Gang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Rong Miao
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Liping Ding
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Taihong Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Jinglin Kong
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205,P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
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3
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Li Y, Wang H, Zhang X, Wang S, Jin S, Xu X, Liu W, Zhao Z, Xie Y. Exciton‐Mediated Energy Transfer in Heterojunction Enables Infrared Light Photocatalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yuanjin Li
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Hui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
- Institute of Energy Hefei Comprehensive National Science Center Hefei 230031 China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
- Institute of Energy Hefei Comprehensive National Science Center Hefei 230031 China
| | - Shuhui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Sen Jin
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Xiaoliang Xu
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Wenxiu Liu
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Zhi Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in Nanoscience University of Science and Technology of China Hefei 230026 China
- Institute of Energy Hefei Comprehensive National Science Center Hefei 230031 China
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4
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Li Y, Wang H, Zhang X, Wang S, Jin S, Xu X, Liu W, Zhao Z, Xie Y. Exciton-Mediated Energy Transfer in Heterojunction Enables Infrared Light Photocatalysis. Angew Chem Int Ed Engl 2021; 60:12891-12896. [PMID: 33829645 DOI: 10.1002/anie.202101090] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/22/2021] [Indexed: 01/19/2023]
Abstract
Although a few semiconductors can directly absorb infrared light, their intrinsic properties like improper band-edge position and strong electron-hole interaction restrict further photocatalytic applications. Herein, we propose an exciton-mediated energy transfer strategy for realizing efficient infrared light response in heterostructures. Using black phosphorous/polymeric carbon nitride (BP/CN) heterojunction, CN could be indirectly excited by infrared light with the aid of nonradiatively exciton-based energy transfer from BP. At the same time, excitons are dissociated into free charge carriers at the interface of BP/CN heterojunction, followed by hole injection to BP and electron retainment in CN. As a result of these unique photoexcitation processes, BP/CN heterojunction exhibits promoted conversion rate and selectivity in amine-amine oxidative coupling reaction even under infrared light irradiation. This study opens a new way for the design of efficient infrared light activating photocatalysts.
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Affiliation(s)
- Yuanjin Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Hui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, China
| | - Xiaodong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, China
| | - Shuhui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Sen Jin
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaoliang Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Wenxiu Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Zhi Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, University of Science and Technology of China, Hefei, 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, 230031, China
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5
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Wang Z, Zhao J, Muddassir M, Guan R, Tao S. Recovering the Thermally Activated Delayed Fluorescence in Aggregation-Induced Emitters of Carborane. Inorg Chem 2021; 60:4705-4716. [PMID: 33739084 DOI: 10.1021/acs.inorgchem.0c03664] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The aggregation-induced emission (AIE) behaviors of carborane-based hybrid emitters have been extensively reported, while their combinations with the thermally activated delayed fluorescence (TADF) are still scarce. We designed and synthesized three Janus carboranes (the chemical structures resemble the double-faced god, Janus) Cb-1/2/3 with different carbazole moieties. All of the Janus carboranes exhibited quenched emission in solution with ΦPL (quantum efficiency of photoluminescence (PL)) lower than 0.01. The PL performance was improved by proceeding to the aggregates in THF/water (ΦPL 0.17-0.35) and further improved in the crystals or solid with ΦPL up to 0.99 for Cb-1, 0.85 for Cb-2, and 0.61 for Cb-3, which agreed with the AIE enhancement. Although the PL of solid Cb-1/2/3 showed non-TADF properties with lifetimes only at several nanoseconds, the crystallographic studies have shown a root cause of π···π stacking that quenched the TADF, and the theoretical calculations forecasted small singlet-triplet energy gaps (ΔES-T) therein. According to these findings, TADF was recovered in Cb-1/2/3 by doping into 1,3-bis(carbazol-9-yl)benzene (mCP). The 10 wt % doped films of Cb-1/2/3 have achieved a trade-off of ΦPL (0.84 in Cb-3 and 0.83 in Cb-1) and delayed lifetime (up to 8 μs). The doped devices of organic light-emitting diodes incorporating Cb-1/2/3 achieved the highest external quantum efficiency at 10.1% and the maximized luminance of 5920 cd/m2 at a driving voltage of 8 V.
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Affiliation(s)
- Zhaojin Wang
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, Jiangsu Province 224051, P.R. China
| | - Juewen Zhao
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, P.R. China
| | - Mohd Muddassir
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rongfeng Guan
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, Jiangsu Province 224051, P.R. China
| | - Silu Tao
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, P.R. China
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6
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Lee SH, Mun MS, Lee JH, Im S, Lee W, Hwang H, Lee KM. Impact of the Electronic Environment in Carbazole-Appended o-Carboranyl Compounds on the Intramolecular-Charge-Transfer-Based Radiative Decay Efficiency. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00060] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Seok Ho Lee
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Min Sik Mun
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Ji Hye Lee
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Sehee Im
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Wonchul Lee
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Hyonseok Hwang
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Kang Mun Lee
- Department of Chemistry and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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7
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Recent Progress in the Development of Solid‐State Luminescent
o
‐Carboranes with Stimuli Responsivity. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916666] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Ochi J, Tanaka K, Chujo Y. Recent Progress in the Development of Solid-State Luminescent o-Carboranes with Stimuli Responsivity. Angew Chem Int Ed Engl 2020; 59:9841-9855. [PMID: 32009291 DOI: 10.1002/anie.201916666] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Indexed: 12/20/2022]
Abstract
o-Carborane, a cluster compound containing boron and adjacent carbon atoms, displays intriguing luminescent properties. Recently, compounds containing o-carborane units were found to show suppressed aggregation-induced quenching and intense solid-state emission; they also show potential for the development of stimuli-responsive luminochromic materials. In this Minireview, we introduce three kinds of fundamental photochemical properties: aggregation-induced emission, twisted intramolecular charge transfer in crystals, and environment-sensitive excimer formation in solids. Based on these properties, several types of luminochromism, such as thermos-, vapo-, and mechanochromism, have been discovered. Based mainly on results from recent studies, we illustrate these mechanisms as well as unique luminescent behaviors of o-carborane derivatives.
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Affiliation(s)
- Junki Ochi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
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9
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Lee S, Shin J, Ko DH, Han WS. A new type of carborane-based electron-accepting material. Chem Commun (Camb) 2020; 56:12741-12744. [DOI: 10.1039/d0cc04684a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct attachment of the ethynyl group significantly affects the electrochemical properties of o-Cb systems.
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Affiliation(s)
- Sunhee Lee
- Department of Chemistry
- Seoul Women's University
- Seoul 01797
- Republic of Korea
| | - Jisu Shin
- Department of Applied Chemistry
- Kyung Hee University
- Yongin
- Republic of Korea
| | - Doo-Hyun Ko
- Department of Applied Chemistry
- Kyung Hee University
- Yongin
- Republic of Korea
| | - Won-Sik Han
- Department of Chemistry
- Seoul Women's University
- Seoul 01797
- Republic of Korea
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10
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Nishino K, Tanaka K, Chujo Y. Tuning of Sensitivity in Thermochromic Luminescence by Regulating Molecular Rotation Based on Triphenylamine‐Substituted
o
‐Carboranes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900537] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kenta Nishino
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Kazuo Tanaka
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku, Kyoto 615-8510 Japan
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11
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Jiang P, Wang Z, Moxey GJ, Morshedi M, Barlow A, Wang G, Quintana C, Zhang C, Cifuentes MP, Humphrey MG. Syntheses and quadratic nonlinear optical properties of 2,7-fluorenylene- and 1,4-phenylene-functionalized o-carboranes. Dalton Trans 2019; 48:12549-12559. [PMID: 31367717 DOI: 10.1039/c9dt02645b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
o-Carboranes C-functionalized by (4-substituted-phen-1-yl)ethynyl-1,4-phenyl groups or (2-substituted-fluoren-7-yl)ethynyl-2,7-fluorenyl groups, in which the pendant functionalization is electron-withdrawing nitro or electron-donating diphenylamino groups, have been synthesized and in many cases structurally characterized. Diphenylamino-containing examples coupled via the two π-delocalizable bridges to the electron-accepting o-carborane unit exhibit the greater quadratic optical nonlinearities at 1064 nm (hyper-Rayleigh scattering, ns pulses), the nonlinearities also increasing on proceeding from 1,4-phenylene- to 2,7-fluorenylene-containing bridge. The most NLO-efficient example 2-(n-butyl)-1-(2-((9,9-di(n-butyl)-2-(N,N-diphenylamino)-9H-fluoren-7-yl)ethynyl)-9,9-di(n-butyl)-9H-fluoren-7-yl)-1,2-ortho-carborane, consisting of diphenylamino donor, fluorenyl-containing bridge, o-carborane acceptor, and solubilizing n-butyl units, exhibits large 〈β〉HRS (230 × 10-30 esu) and frequency-independent (two-level model) 〈β0〉 (96 × 10-30 esu) values. Coupling two (2-((9,9-di(n-butyl)-2-(N,N-diphenylamino)-9H-fluoren-7-yl)ethynyl)-9,9-di(n-butyl)-9H-fluoren-7-yl) units to the 1,2-ortho-carborane core affords a di-C-functionalized compound with enhanced nonlinearities (309 × 10-30 esu and 129 × 10-30 esu, respectively).
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Affiliation(s)
- Peng Jiang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Zhaojin Wang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Graeme J Moxey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Mahbod Morshedi
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Adam Barlow
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Genmiao Wang
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Cristóbal Quintana
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Chi Zhang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Marie P Cifuentes
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China. and Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Mark G Humphrey
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China. and Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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12
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Zhang K, Shen Y, Yang X, Liu J, Jiang T, Finney N, Spingler B, Duttwyler S. Atomically Defined Monocarborane Copper(I) Acetylides with Structural and Luminescence Properties Tuned by Ligand Sterics. Chemistry 2019; 25:8754-8759. [DOI: 10.1002/chem.201900584] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Kang Zhang
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
| | - Yunjun Shen
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
| | - Xiaoli Yang
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
| | - Jiyong Liu
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
| | - Tao Jiang
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
| | - Nathaniel Finney
- School of Pharmaceutical Science and TechnologyTianjin University 92 Weijin Road 300072 Tianjin P. R. China
| | - Bernhard Spingler
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Simon Duttwyler
- Department of ChemistryZhejiang University 38 Zheda Road 310027 Hangzhou P. R. China
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13
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Shen Y, Zhang K, Liang X, Dontha R, Duttwyler S. Highly selective palladium-catalyzed one-pot, five-fold B-H/C-H cross coupling of monocarboranes with alkenes. Chem Sci 2019; 10:4177-4184. [PMID: 31057746 PMCID: PMC6471670 DOI: 10.1039/c9sc00078j] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/03/2019] [Indexed: 01/07/2023] Open
Abstract
Palladium-catalyzed dehydrogenative B-H/C-H cross coupling of monocarborane anions with alkenes is reported, allowing for the first time the isolation of selectively penta-alkenylated boron clusters. The reaction cascade is regioselective for the cage positions, leading directly to B2-6 functionalization. Under mild and convenient conditions, styrenes, benzylic alkenes and aliphatic alkenes are demonstrated to be viable coupling partners with exclusive vinyl-type B-C bond formation. Multiple subsequent transformations provide access to directing group-free products, chiral derivatives and penta-alkylated cages. The five-fold coupling, combined with the latter reactions, represents a powerful methodology for the straightforward synthesis of new classes of boron clusters.
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Affiliation(s)
- Yunjun Shen
- Department of Chemistry , Zhejiang University , 310027 Hangzhou , Zhejiang , P. R. China .
| | - Kang Zhang
- Department of Chemistry , Zhejiang University , 310027 Hangzhou , Zhejiang , P. R. China .
| | - Xuewei Liang
- Department of Chemistry , Zhejiang University , 310027 Hangzhou , Zhejiang , P. R. China .
| | - Rakesh Dontha
- Department of Chemistry , Zhejiang University , 310027 Hangzhou , Zhejiang , P. R. China .
| | - Simon Duttwyler
- Department of Chemistry , Zhejiang University , 310027 Hangzhou , Zhejiang , P. R. China .
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14
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Nishino K, Yamamoto H, Ochi J, Tanaka K, Chujo Y. Time‐Dependent Emission Enhancement of the Ethynylpyrene‐
o
‐Carborane Dyad and Its Application as a Luminescent Color Sensor for Evaluating Water Contents in Organic Solvents. Chem Asian J 2019; 14:1577-1581. [DOI: 10.1002/asia.201900396] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Kenta Nishino
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615–8510 Japan
| | - Hideki Yamamoto
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615–8510 Japan
| | - Junki Ochi
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615–8510 Japan
| | - Kazuo Tanaka
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615–8510 Japan
| | - Yoshiki Chujo
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615–8510 Japan
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15
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Ochi J, Tanaka K, Chujo Y. Improvement of Solid-State Excimer Emission of the Aryl-Ethynyl-o
-Carborane Skeleton by Acridine Introduction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900212] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Junki Ochi
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
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16
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Chaari M, Kelemen Z, Choquesillo-Lazarte D, Gaztelumendi N, Teixidor F, Viñas C, Nogués C, Núñez R. Efficient blue light emitting materials based on m-carborane–anthracene dyads. Structure, photophysics and bioimaging studies. Biomater Sci 2019; 7:5324-5337. [DOI: 10.1039/c9bm00903e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Linking m-carborane to the anthracene dye produces an exceptional enhancement of the fluorescence properties, with quantum efficiencies close to 100% in solution. Dyads were internalized by HeLa cells through endocytosis showing intense blue emission.
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Affiliation(s)
- Mahdi Chaari
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Bellaterra
- Spain
| | - Zsolt Kelemen
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Bellaterra
- Spain
| | | | - Nerea Gaztelumendi
- Departament de Biologia Cellular
- Fisiologia i Immunologia. Universitat Autònoma de Barcelona
- Bellaterra
- Spain
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Bellaterra
- Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Bellaterra
- Spain
| | - Carme Nogués
- Departament de Biologia Cellular
- Fisiologia i Immunologia. Universitat Autònoma de Barcelona
- Bellaterra
- Spain
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Bellaterra
- Spain
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17
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Lin F, Yu JL, Shen Y, Zhang SQ, Spingler B, Liu J, Hong X, Duttwyler S. Palladium-Catalyzed Selective Five-Fold Cascade Arylation of the 12-Vertex Monocarborane Anion by B–H Activation. J Am Chem Soc 2018; 140:13798-13807. [DOI: 10.1021/jacs.8b07872] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Furong Lin
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Jing-Lu Yu
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Yunjun Shen
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Shuo-Qing Zhang
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Bernhard Spingler
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Jiyong Liu
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
| | - Simon Duttwyler
- Department of Chemistry, Zhejiang University, 38 Zheda Road, 310027 Hangzhou, People’s Republic of China
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18
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Nishino K, Hashimoto K, Tanaka K, Morisaki Y, Chujo Y. Comparison of luminescent properties of helicene-like bibenzothiophenes with o-carborane and 5,6-dicarba-nido-decaborane. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9258-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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20
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Naito H, Uemura K, Morisaki Y, Tanaka K, Chujo Y. Enhancement of Luminescence Efficiencies by Thermal Rearrangement fromortho- tometa-Carborane in Bis-Carborane-Substituted Acenes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800151] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hirofumi Naito
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura 615-8510 Nishikyo-ku, Kyoto Japan
| | - Kyoya Uemura
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura 615-8510 Nishikyo-ku, Kyoto Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura 615-8510 Nishikyo-ku, Kyoto Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura 615-8510 Nishikyo-ku, Kyoto Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura 615-8510 Nishikyo-ku, Kyoto Japan
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21
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Nishino K, Uemura K, Tanaka K, Morisaki Y, Chujo Y. Modulation of the cis
- and trans
-Conformations in Bis-o
-carborane Substituted Benzodithiophenes and Emission Enhancement Effect on Luminescent Efficiency by Solidification. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701641] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kenta Nishino
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku 8510 Kyoto 615- Japan
| | - Kyoya Uemura
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku 8510 Kyoto 615- Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku 8510 Kyoto 615- Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku 8510 Kyoto 615- Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku 8510 Kyoto 615- Japan
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22
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Kim SY, Cho YJ, Son HJ, Cho DW, Kang SO. Photoinduced Electron Transfer in a BODIPY-ortho-Carborane Dyad Investigated by Time-Resolved Transient Absorption Spectroscopy. J Phys Chem A 2018; 122:3391-3397. [DOI: 10.1021/acs.jpca.8b01539] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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23
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Nishino K, Uemura K, Tanaka K, Chujo Y. Dual emission via remote control of molecular rotation of o-carborane in the excited state by the distant substituents in tolane-modified dyads. NEW J CHEM 2018. [DOI: 10.1039/c7nj04283c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual-emissive properties are reported based on the tolane-o-carborane dyads with various substituents.
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Affiliation(s)
- Kenta Nishino
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kyoya Uemura
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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24
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Nishino K, Uemura K, Gon M, Tanaka K, Chujo Y. Enhancement of Aggregation-Induced Emission by Introducing Multiple o-Carborane Substitutions into Triphenylamine. Molecules 2017; 22:molecules22112009. [PMID: 29156590 PMCID: PMC6150215 DOI: 10.3390/molecules22112009] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 12/29/2022] Open
Abstract
The enhancement of aggregation-induced emission (AIE) is presented on the basis of the strategy for improving solid-state luminescence by employing multiple o-carborane substituents. We synthesized the modified triphenylamines with various numbers of o-carborane units and compared their optical properties. From the optical measurements, the emission bands from the twisted intramolecular charge transfer (TICT) state were obtained from the modified triphenylamines. It was notable that emission efficiencies of the multi-substituted triphenylamines including two or three o-carborane units were enhanced 6- to 8-fold compared to those of the mono-substituted triphenylamine. According to mechanistic studies, it was proposed that the single o-carborane substitution can load the AIE property via the TICT mechanism. It was revealed that the additional o-carborane units contribute to improving solid-state emission by suppressing aggregation-caused quenching (ACQ). Subsequently, intense AIEs were obtained. This paper presents a new role of the o-carborane substituent in the enhancement of AIEs.
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Affiliation(s)
- Kenta Nishino
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Kyoya Uemura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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25
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Nishino K, Yamamoto H, Tanaka K, Chujo Y. Solid-State Thermochromic Luminescence through Twisted Intramolecular Charge Transfer and Excimer Formation of a Carborane−Pyrene Dyad with an Ethynyl Spacer. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700390] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kenta Nishino
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Hideki Yamamoto
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
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26
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Yamazaki S, Diaz MA, Carlino TM, Gotluru C, Mazza MMA, Scott AM. Ultrafast Spectroscopic Dynamics of Quinacrine-Riboflavin Binding Protein Interactions. J Phys Chem B 2017; 121:8291-8299. [PMID: 28762739 DOI: 10.1021/acs.jpcb.7b05304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Redox active cofactors play a dynamic role inside protein binding active sites because the amino acids responsible for binding participate in electron transfer (ET) reactions. Here, we use femtosecond transient absorption (FsTA) spectroscopy to examine the ultrafast ET between quinacrine (Qc), an antimalarial drug with potential anticancer activity, and riboflavin binding protein (RfBP) with a known Kd = 264 nM. Steady-state absorption reveals a ∼ 10 nm red-shift in the ground state when QcH32+ is titrated with RfBP, and a Stern-Volmer analysis shows ∼84% quenching and a blue-shift of the QcH32+ photoluminescence to form a 1:1 binding ratio of the QcH32+-RfBP complex. Upon selective photoexcitation of QcH32+ in the QcH32+-RfBP complex, we observe charge separation in 7 ps to form 1[QcH3_red•+-RfBP•+], which persists for 138 ps. The FsTA spectra show the spectroscopic identification of QcH3_red•+, determined from spectroelectrochemical measurements in DMSO. We correlate our results to literature and report lifetimes that are 10-20× slower than the natural riboflavin, Rf-RfBP, complex and are oxygen independent. Driving force (ΔG) calculations, corrected for estimated dielectric constants for protein hydrophobic pockets, and Marcus theory depict a favorable one-electron ET process between QcH32+ and nearby redox active tyrosine (Tyr) or tryptophan (Trp) residues.
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Affiliation(s)
- Shiori Yamazaki
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Matthew A Diaz
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Thomas M Carlino
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Chitra Gotluru
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Mercedes M A Mazza
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Amy M Scott
- University of Miami , Department of Chemistry, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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27
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Shen Y, Liu J, Sattasatchuchana T, Baldridge KK, Duttwyler S. Transition Metal Complexes of a Monocarba-closo-dodecaborate Ligand via B-H Activation. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700677] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yunjun Shen
- Department of Chemistry; Zhejiang University; Zheda Road 38 310027 Hangzhou P. R. China
| | - Jiyong Liu
- Department of Chemistry; Zhejiang University; Zheda Road 38 310027 Hangzhou P. R. China
| | - Tosaporn Sattasatchuchana
- Health Sciences Platform; Tianjin University; A203/Building 24; 92 Weijin Road 300072 Tianjin Nankai District P. R. China
| | - Kim K. Baldridge
- Health Sciences Platform; Tianjin University; A203/Building 24; 92 Weijin Road 300072 Tianjin Nankai District P. R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; Zheda Road 38 310027 Hangzhou P. R. China
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28
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Naito H, Nishino K, Morisaki Y, Tanaka K, Chujo Y. Luminescence Color Tuning from Blue to Near Infrared of Stable Luminescent Solid Materials Based on Bis-o-Carborane-Substituted Oligoacenes. Chem Asian J 2017. [DOI: 10.1002/asia.201700815] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hirofumi Naito
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Kenta Nishino
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
- Present address: Department of Applied Chemistry for Environment; School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
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29
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Shen Y, Pan Y, Liu J, Sattasathuchana T, Baldridge KK, Duttwyler S. Synthesis and full characterization of an iridium B-H activation intermediate of the monocarba-closo-dodecaborate anion. Chem Commun (Camb) 2017; 53:176-179. [PMID: 27910993 DOI: 10.1039/c6cc08121e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The preparation and full characterization of an iridium complex of the monocarba-closo-dodecaborate anion is reported. It was prepared by B-H bond activation using a tosyl amide directing group. Analysis by spectroscopic methods and X-ray crystallography revealed the presence a direct B-Ir interaction. The carborane acts as a B,N chelating ligand towards the Ir(Cp*)(solvent) fragment, resulting in a monomeric complex that is inert in solution and the solid state. Treatment with N-chlorosuccinimide resulted in selective monochlorination of the B-Ir position. In addition, its structure, spectroscopic features and reactivity were investigated by DFT calculations.
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Affiliation(s)
- Yunjun Shen
- Department of Chemistry, Zhejiang University, Zheda Road 38, 310027 Hangzhou, P. R. China.
| | - Yani Pan
- Department of Chemistry, Zhejiang University, Zheda Road 38, 310027 Hangzhou, P. R. China.
| | - Jiyong Liu
- Department of Chemistry, Zhejiang University, Zheda Road 38, 310027 Hangzhou, P. R. China.
| | - Tosaporn Sattasathuchana
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Kim K Baldridge
- School of Pharmaceutical Science and Technology, Tianjin University, A203/Building 24, 92 Weijin Road, Nankai District, 300072 Tianjin, P. R. China.
| | - Simon Duttwyler
- Department of Chemistry, Zhejiang University, Zheda Road 38, 310027 Hangzhou, P. R. China.
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30
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Wang Z, Wang T, Zhang C, Humphrey MG. Efficient crystallization-induced emission in fluorenyl-tethered carboranes. Phys Chem Chem Phys 2017; 19:12928-12935. [DOI: 10.1039/c7cp02118f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
(Aryl)(fluorenyl)-difunctionalized o-carboranes exhibit high quantum efficiency crystallization-induced emission; the origin of the CIE was rationalized from structural and theoretical studies.
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Affiliation(s)
- Zhaojin Wang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Tianyu Wang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chi Zhang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Mark G. Humphrey
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
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31
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Shen Y, Pan Y, Zhang K, Liang X, Liu J, Spingler B, Duttwyler S. B–H functionalization of the monocarba-closo-dodecaborate anion by rhodium and iridium catalysis. Dalton Trans 2017; 46:3135-3140. [DOI: 10.1039/c7dt00269f] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regioselective derivatization of the monocarba-closo-dodecaborate anion via catalytic B–H bond activation is reported.
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Affiliation(s)
- Yunjun Shen
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
| | - Yani Pan
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
| | - Kang Zhang
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
| | - Xuewei Liang
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
| | - Jiyong Liu
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
| | | | - Simon Duttwyler
- Department of Chemistry
- Zhejiang University
- 310027 Hangzhou
- P.R. China
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32
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Nishino K, Morisaki Y, Tanaka K, Chujo Y. Electron-donating abilities and luminescence properties of tolane-substituted nido-carboranes. NEW J CHEM 2017. [DOI: 10.1039/c7nj02438j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The luminescence properties of nido-carborane-substituted tolane derivatives were investigated.
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Affiliation(s)
- Kenta Nishino
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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33
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Naito H, Nishino K, Morisaki Y, Tanaka K, Chujo Y. Solid-State Emission of the Anthracene-o-Carborane Dyad from the Twisted-Intramolecular Charge Transfer in the Crystalline State. Angew Chem Int Ed Engl 2016; 56:254-259. [PMID: 27911472 DOI: 10.1002/anie.201609656] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Indexed: 02/04/2023]
Abstract
The emission process of the o-carborane dyad with anthracene originating from the twisted intramolecular charge transfer (TICT) state in the crystalline state is described. The anthracene-o-carborane dyad was synthesized and its optical properties were investigated. Initially, the dyad had aggregation- and crystallization-induced emission enhancement (AIEE and CIEE) properties via the intramolecular charge transfer (ICT) state. Interestingly, the dyad presented the dual-emissions assigned to both locally excited (LE) and ICT states in solution. From the mechanistic studies and computer calculations, it was indicated that the emission band from the ICT should be attributable to the TICT emission. Surprisingly, even in the crystalline state, the TICT emission was observed. It was proposed from that the compact sphere shape of o-carborane would allow for rotation even in the condensed state.
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Affiliation(s)
- Hirofumi Naito
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kenta Nishino
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.,Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
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34
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Naito H, Nishino K, Morisaki Y, Tanaka K, Chujo Y. Solid‐State Emission of the Anthracene‐
o
‐Carborane Dyad from the Twisted‐Intramolecular Charge Transfer in the Crystalline State. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609656] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hirofumi Naito
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Kenta Nishino
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
- Department of Applied Chemistry for Environment School of Science and Technology Kwansei Gakuin University 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
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