151
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Cai W, Chen M, Bao L, Xie Y, Akasaka T, Lu X. In‐Depth Understanding of the Chemical Properties of Rarely Explored Carbide Cluster Metallofullerenes: A Case Study of Sc
2
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2
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3
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(8)‐C
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that Reveals a General Rule. Chemistry 2015; 21:3449-54. [DOI: 10.1002/chem.201405493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Wenting Cai
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
| | - Muqing Chen
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
| | - Lipiao Bao
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
| | - Yunpeng Xie
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
| | - Takeshi Akasaka
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Foundation for Advancement of International Science
- Tokyo Gakugei University, Tsukuba, Ibaraki 305‐8577 (Japan)
| | - Xing Lu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074 (P.R. China)
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152
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Haruta N, Sato T, Tanaka K. Reactivity of endohedral metallofullerene la2@c80 in nucleophilic and electrophilic attacks: vibronic coupling density approach. J Org Chem 2015; 80:141-7. [PMID: 25389657 DOI: 10.1021/jo502208t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The regioselectivities of La2@C80 in thermal nucleophilic and electrophilic attacks were theoretically investigated using vibronic coupling density (VCD) analysis. Nucleophilic and electrophilic cycloadditions to La2@C80 were experimentally reported to yield [6,6] and [6,5] adducts, respectively, as major products. VCD analysis provided a clear explanation for these experimental results. For nucleophilic reactions, it was found that the reactive [6,6] bonds did not have a large lowest unoccupied molecular orbital (LUMO) density and Fukui function but a large potential derivative with respect to a reaction mode. The VCD illustrates the origin of the interaction between the electronic and vibrational states. On the other hand, conventional reactivity indices such as frontier orbital density take only the electronic state into account. The result suggested that the stabilization due to vibronic couplings plays an important role in the regioselectivity of nucleophilic cycloadditions. The VCD with respect to the effective mode could provide a picture of the functional groups, which are the double bonds of ethylene moieties. VCD analysis with respect to hypothetical localized modes enabled the quantitative prediction of regioselectivities.
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153
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Wang J, Lu SM, Li J, Li C. A remarkable difference in CO2hydrogenation to methanol on Pd nanoparticles supported inside and outside of carbon nanotubes. Chem Commun (Camb) 2015; 51:17615-8. [DOI: 10.1039/c5cc07079a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An obvious difference was found in CO2hydrogenation to methanol on Pd nanoparticles (NPs) supported inside and outside of carbon nanotubes (CNTs).
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Affiliation(s)
- Jijie Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- P. R. China
| | - Sheng-mei Lu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- P. R. China
| | - Jun Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- P. R. China
| | - Can Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- P. R. China
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154
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Schunk FM, Rand D, Rose-Petruck C. Spatial frequency heterodyne imaging of aqueous phase transitions inside multi-walled carbon nanotubes. Phys Chem Chem Phys 2015; 17:31237-46. [DOI: 10.1039/c5cp04508h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spatial frequency heterodyne imaging of aqueous phase transitions in carbon nanotubes demonstrates the applicability of thermodynamics to nano-confined water.
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Affiliation(s)
- F. M. Schunk
- Department of Chemistry
- Brown University
- Providence
- USA
| | - D. Rand
- Department of Chemistry
- Brown University
- Providence
- USA
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155
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Ordomsky VV, Legras B, Cheng K, Paul S, Khodakov AY. The role of carbon atoms of supported iron carbides in Fischer–Tropsch synthesis. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01631a] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High reactivity of iron carbides enhances the Fischer–Tropsch reaction rate on supported iron catalysts. Carbon atoms in iron carbide are involved in the initiation of chain growth in Fischer–Tropsch synthesis.
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Affiliation(s)
- V. V. Ordomsky
- Unité de Catalyse et de Chimie du Solide
- UMR 8181 CNRS
- Université Lille 1
- 59655 Villeneuve d'Ascq
- France
| | - B. Legras
- Unité de Catalyse et de Chimie du Solide
- UMR 8181 CNRS
- Université Lille 1
- 59655 Villeneuve d'Ascq
- France
| | - K. Cheng
- Unité de Catalyse et de Chimie du Solide
- UMR 8181 CNRS
- Université Lille 1
- 59655 Villeneuve d'Ascq
- France
| | - S. Paul
- Unité de Catalyse et de Chimie du Solide
- UMR 8181 CNRS
- Université Lille 1
- 59655 Villeneuve d'Ascq
- France
| | - A. Y. Khodakov
- Unité de Catalyse et de Chimie du Solide
- UMR 8181 CNRS
- Université Lille 1
- 59655 Villeneuve d'Ascq
- France
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156
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Li G, Li W, Zhang H, Pu Y, Sun M, Zhang J. Non-mercury catalytic acetylene hydrochlorination over Ru catalysts enhanced by carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c4ra12017e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ru catalysts deposited inside the channels of the CNTs show higher catalytic activity. Ru-in-CNT catalyst exhibited an acetylene conversion of 95.0% at 170 °C and 10 h. CNTs with an inner diameter of 3–7 nm can functionalize as an efficient support.
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Affiliation(s)
- Guangbi Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
- Department of Environmental Science and Engineering
| | - Wei Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Haiyang Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yanfeng Pu
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Mengxia Sun
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Jinli Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
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157
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Zhao YL, Zhou Q, Lian YF, Yu HT. Molecular structures of Pr@C72 and Pr@C72(C6H3Cl2): a combined experimental–theoretical investigation. RSC Adv 2015. [DOI: 10.1039/c5ra17608e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The carbon-cage structure of the lowest-lying Pr@C72 and its dichlorophenyl-functionalized derivative is C2(10612)-C72.
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Affiliation(s)
- Yan-li Zhao
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education of China) and School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- PR China
- School of Pharmacy
| | - Qin Zhou
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education of China) and School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- PR China
| | - Yong-fu Lian
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education of China) and School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- PR China
| | - Hai-tao Yu
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education of China) and School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- PR China
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158
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Yamada M, Muto Y, Kurihara H, Slanina Z, Suzuki M, Maeda Y, Rubin Y, Olmstead MM, Balch AL, Nagase S, Lu X, Akasaka T. Regioselective cage opening of La2 @D2 (10611)-C72 with 5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine. Angew Chem Int Ed Engl 2014; 54:2232-5. [PMID: 25536953 DOI: 10.1002/anie.201410012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 12/04/2014] [Indexed: 11/12/2022]
Abstract
The thermal reaction of the endohedral metallofullerene La2 @D2 (10611)-C72 , which contains two pentalene units at opposite ends of the cage, with 5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine proceeded selectively to afford only two bisfulleroid isomers. The molecular structure of one isomer was determined using single-crystal X-ray crystallography. The results suggest that the [4+2] cycloaddition was initiated in a highly regioselective manner at the C-C bond connecting two pentagon rings of C72 . Subsequent intramolecular electrocyclization followed by cycloreversion resulted in the formation of an open-cage derivative having three seven-membered ring orifices on the cage and a significantly elongated cage geometry. The reduction potentials of the open-cage derivatives were similar to those of La2 @D2 -C72 whereas the oxidation potentials were shifted more negative than those of La2 @D2 -C72 . These results point out that further oxidation could occur easily in the derivatives.
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Affiliation(s)
- Michio Yamada
- Department of Chemistry, Tokyo Gakugei University, Koganei, Tokyo 184-8501 (Japan)
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159
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Yamada M, Muto Y, Kurihara H, Slanina Z, Suzuki M, Maeda Y, Rubin Y, Olmstead MM, Balch AL, Nagase S, Lu X, Akasaka T. Regioselective Cage Opening of La2@D2(10611)-C72with 5,6-Diphenyl-3-(2-pyridyl)-1,2,4-triazine. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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160
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Cui CX, Liu YJ. A DFT study on Diels-Alder cycloadditions oftrans-1,3-butadiene to C60and C70. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Cheng-Xing Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
- School of Chemistry and Chemical Engineering; Henan Institute of Science and Technology; Xinxiang 453003 China
| | - Ya-Jun Liu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
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161
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Takano Y, Slanina Z, Mateos J, Tsuchiya T, Kurihara H, Uhlik F, Herranz MÁ, Martín N, Nagase S, Akasaka T. Unprecedented chemical reactivity of a paramagnetic endohedral metallofullerene La@C(s)-C82 that leads hydrogen addition in the 1,3-dipolar cycloaddition reaction. J Am Chem Soc 2014; 136:17537-46. [PMID: 25469552 DOI: 10.1021/ja509407j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Synthesizing unprecedented diamagnetic adducts of an endohedral metallofullerene was achieved by using 1,3-dipolar cycloaddition reaction of paramagnetic La@C(s)-C82 with a simultaneous hydrogen addition. The selective formation of two main products, La@C(s)-C82HCMe2NMeCHPh (2a and 2b), was first detected by HPLC analysis and MALDI-TOF mass spectrometry. 2a and 2b-O, which was readily formed by the oxidation of 2b, were isolated by multistep HPLC separation and were fully characterized by spectroscopic methods, including 1D and 2D-NMR, UV-vis-NIR measurements and electrochemistry. The hydrogen atom was found to be connected to the fullerene cage directly in the case of 2a, and the redox behavior indicated that the C-H bond can still be readily oxidized. The reaction mechanism and the molecular structures of 2a and 2b were reasonably proposed by the interplay between experimental observations and DFT calculations. The feasible order of the reaction process would involve a 1,3-dipolar cycloaddition followed by the hydrogen addition through a radical pathway. It is concluded that the characteristic electronic properties and molecular structure of La@C(s)-C82 resulted in a site-selective reaction, which afforded a unique chemical derivative of an endohedral metallofullerene in high yields. Derivative 2a constitutes the first endohedral metallofullerene where the direct linking of a hydrogen atom has been structurally proven.
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Affiliation(s)
- Yuta Takano
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , Sakyo-ku, Kyoto 606-8501, Japan
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162
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Yamada M, Akasaka T. Emergence of Highly Elaborated π-Space and Extending Its Functionality Based on Nanocarbons: New Vistas in the Fullerene World. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20140295] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
| | - Takeshi Akasaka
- Department of Chemistry, Tokyo Gakugei University
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba
- Foundation for Advancement of International Science
- School of Materials Science and Engineering, Huazhong University of Science and Technology
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163
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Gloriozov IP, Marchal R, Saillard J, Oprunenko YF. Chromium Tricarbonyl and Chromium Benzene Complexes of Graphene, Their Properties, Stabilities, and Inter‐Ring Haptotropic Rearrangements – A DFT Investigation. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402879] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Igor P. Gloriozov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Vorob'evy Gory, 119899 Moscow, Russia, http://fhmas.ru/ru/personal_oprunenko.htm
| | - Rémi Marchal
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS‐Universite de Rennes 1, 35042 Rennes cedex, France E‐mail: jean‐yves.saillard@univ‐rennes1.fr http://www.scienceschimiques.univ‐rennes1.fr/equipes/cti/
| | - Jean‐Yves Saillard
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS‐Universite de Rennes 1, 35042 Rennes cedex, France E‐mail: jean‐yves.saillard@univ‐rennes1.fr http://www.scienceschimiques.univ‐rennes1.fr/equipes/cti/
| | - Yuri F. Oprunenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Vorob'evy Gory, 119899 Moscow, Russia, http://fhmas.ru/ru/personal_oprunenko.htm
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164
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Zhao RS, Zhao X. Quantum chemical insights into regioselective hydrolysis of C60F36. RSC Adv 2014. [DOI: 10.1039/c4ra10492g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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165
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Quantum chemical calculations of the pK a of C60H2 in DMSO, toluene—DMSO mixture, and water. Russ Chem Bull 2014. [DOI: 10.1007/s11172-014-0473-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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166
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Han C, Yang MQ, Weng B, Xu YJ. Improving the photocatalytic activity and anti-photocorrosion of semiconductor ZnO by coupling with versatile carbon. Phys Chem Chem Phys 2014; 16:16891-903. [DOI: 10.1039/c4cp02189d] [Citation(s) in RCA: 344] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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167
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Iwamoto T, Kayahara E, Yasuda N, Suzuki T, Yamago S. Synthesis, Characterization, and Properties of [4]Cyclo‐2,7‐pyrenylene: Effects of Cyclic Structure on the Electronic Properties of Pyrene Oligomers. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403624] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takahiro Iwamoto
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
| | - Eiichi Kayahara
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
| | - Nobuhiro Yasuda
- Japan Synchrotron Radiation Research Institute, Hyogo 679‐5198 (Japan)
| | - Toshiyasu Suzuki
- Institute for Molecular Science, Okazaki 444‐8787 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
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168
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Iwamoto T, Kayahara E, Yasuda N, Suzuki T, Yamago S. Synthesis, Characterization, and Properties of [4]Cyclo‐2,7‐pyrenylene: Effects of Cyclic Structure on the Electronic Properties of Pyrene Oligomers. Angew Chem Int Ed Engl 2014; 53:6430-4. [DOI: 10.1002/anie.201403624] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Takahiro Iwamoto
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
| | - Eiichi Kayahara
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
| | - Nobuhiro Yasuda
- Japan Synchrotron Radiation Research Institute, Hyogo 679‐5198 (Japan)
| | - Toshiyasu Suzuki
- Institute for Molecular Science, Okazaki 444‐8787 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Uji 611‐0011 (Japan)
- CREST, Science and Technology Agency, Tokyo (Japan)
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169
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Kirner S, Sekita M, Guldi DM. 25th anniversary article: 25 years of fullerene research in electron transfer chemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1482-1493. [PMID: 24532250 DOI: 10.1002/adma.201304928] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 10/30/2013] [Indexed: 06/03/2023]
Abstract
The past 25 years have served as a test bed for exploring the chemistry and physics, in general, and the electron transfer chemistry, in particular, of low-dimensional carbon. Nevertheless, the new realm started with the advent of fullerenes, followed in chronological order by carbon nanotubes, and, more recently, by graphene. The major thrust of this Review article is to historically recap the versatility of fullerenes regarding the design, the synthesis, and the tests as an electroactive building block in photosynthetic reaction mimics, photovoltaics, and catalysis.
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Affiliation(s)
- Sabrina Kirner
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Egerlandstr. 3, 91058, Erlangen, Germany
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170
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Pan H, Chen B. Ultra-flexibility and unusual electronic, magnetic and chemical properties of waved graphenes and nanoribbons. Sci Rep 2014; 4:4198. [PMID: 24569444 PMCID: PMC3935201 DOI: 10.1038/srep04198] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 02/05/2014] [Indexed: 11/09/2022] Open
Abstract
Two-dimensional materials have attracted increasing attention because of their particular properties and potential applications in next-generation nanodevices. In this work, we investigate the physical and chemical properties of waved graphenes/nanoribbons based on first-principles calculations. We show that waved graphenes are compressible up to a strain of 50% and ultra-flexible because of the vanishing in-plane stiffness. The conductivity of waved graphenes is reduced due to charge decoupling under high compression. Our analysis of pyramidalization angles predicts that the chemistry of waved graphenes can be easily controlled by modulating local curvatures. We further demonstrate that band gaps of armchair waved graphene nanoribbons decrease with the increase of compression if they are asymmetrical in geometry, while increase if symmetrical. For waved zigzag nanoribbons, their anti-ferromagnetic states are strongly enhanced by increasing compression. The versatile functions of waved graphenes enable their applications in multi-functional nanodevices and sensors.
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Affiliation(s)
- Hui Pan
- Faculty of Science and Technology, University of Macau, Macau SAR, P. R. China
| | - Bin Chen
- Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, P. R. China
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171
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Pacheco Sanjuan AA, Mehboudi M, Harriss EO, Terrones H, Barraza-Lopez S. Quantitative chemistry and the discrete geometry of conformal atom-thin crystals. ACS NANO 2014; 8:1136-1146. [PMID: 24400916 DOI: 10.1021/nn406532z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
When flat or on a firm mechanical substrate, the atomic composition and atomistic structure of two-dimensional crystals dictate their chemical, electronic, optical, and mechanical properties. These properties change when the two-dimensional and ideal crystal structure evolves into arbitrary shapes, providing a direct and dramatic link among geometry and material properties due to the larger structural flexibility when compared to bulk three-dimensional materials. We describe methods to understand the local geometrical information of two-dimensional conformal crystals quantitatively and directly from atomic positions, even in the presence of atomistic defects. We then discuss direct relations among the discrete geometry and chemically relevant quantities--mean bond lengths, hybridization angles, and σ-π hybridization. These concepts are illustrated for carbon-based materials and ionic crystals. The pyramidalization angle turns out to be linearly proportional to the mean curvature for relevant crystalline configurations. Discrete geometry provides direct quantitative information on the potential chemistry of conformal two-dimensional crystals.
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172
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Galué HÁ. Decoding the infrared signatures of pyramidal carbons in graphenic molecular nanostructures of interstellar origin. Chem Sci 2014. [DOI: 10.1039/c4sc00890a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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173
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Garcia-Borràs M, Osuna S, Luis JM, Swart M, Solà M. The role of aromaticity in determining the molecular structure and reactivity of (endohedral metallo)fullerenes. Chem Soc Rev 2014; 43:5089-105. [DOI: 10.1039/c4cs00040d] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The molecular structure and chemical reactivity of endohedral metallofullerenes can be greatly predicted and rationalized by their local and global aromaticity.
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Affiliation(s)
- Marc Garcia-Borràs
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- 17071 Girona, Spain
| | - Sílvia Osuna
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- 17071 Girona, Spain
| | - Josep M. Luis
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- 17071 Girona, Spain
| | - Marcel Swart
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- 17071 Girona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
- 08010 Barcelona, Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- 17071 Girona, Spain
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174
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Wu YT, Siegel JS. Synthesis, Structures, and Physical Properties of Aromatic Molecular-Bowl Hydrocarbons. POLYARENES I 2014; 349:63-120. [DOI: 10.1007/128_2014_548] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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175
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Bissett MA, Tsuji M, Ago H. Strain engineering the properties of graphene and other two-dimensional crystals. Phys Chem Chem Phys 2014; 16:11124-38. [DOI: 10.1039/c3cp55443k] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This perspective discusses recent advances in using strain to engineer the properties of thin-layer materials such as graphene and transition metal dichalcogenides (TMDs).
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Affiliation(s)
- Mark A. Bissett
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Fukuoka, Japan
| | - Masaharu Tsuji
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Fukuoka, Japan
| | - Hiroki Ago
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Fukuoka, Japan
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176
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Chen MK, Hsin HJ, Wu TC, Kang BY, Lee YW, Kuo MY, Wu YT. Highly Curved Bowl-Shaped Fragments of Fullerenes: Synthesis, Structural Analysis, and Physical Properties. Chemistry 2013; 20:598-608. [DOI: 10.1002/chem.201303357] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Indexed: 11/11/2022]
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177
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Abstract
Graphene is a two-dimensional crystalline carbon allotrope that has fascinated researchers worldwide and has extended the interest in carbon structures such as fullerenes and nanotubes. In this Account, we use electrical characterization tools to study chemistry on supported graphene. These experiments elucidate the way covalently bound phenyl units can change graphene's physical properties. Can we use chemistry to control electronic properties of graphene? What can we learn from well-known carbon allotropes like fullerenes? The surfaces of fullerenes and graphene show distinct differences in reactivity because of the high strain of sp² carbon in fullerenes compared with the complete lack of strain in graphene. Diazonium chemistry provides a versatile tool for attaching phenyl units covalently to carbon to produce advanced materials and electronic components, but diazonium-based carbon chemistry is strongly influenced by strain. Although fullerenes are highly reactive, graphite (stacks of graphene) remains relatively inert. We chemically introduce n- and p-like doping patterns in two-dimensional graphene using photolithography and extend the ability to chemically control doping to the chemical design of conducting and insulating areas. Thereby we can shape graphene surfaces into functional electronic devices. This Account also describes multistep synthesis on graphene-coated nanoparticles and the introduction of various functional groups on graphene surfaces. Only few functional groups can be produced directly via diazonium chemistry. To overcome this issue, we used these functional groups as starting points for more demanding organic reactions. We covalently attached chelating agents, catalysts, or polymers on the carbon surface. These more complex reactions facilitate the design of electronic modifications, intergraphene connections, and anchors for polymer incorporation. Diazonium chemistry forms strong covalent bridges between graphene and other areas of chemistry.
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Affiliation(s)
- Fabian M. Koehler
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Wendelin J. Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
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178
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Kim G, Lee KC, Kim J, Lee J, Lee SM, Lee JC, Seo JH, Choi WY, Yang C. An unprecedented [5,6]-open adduct via a direct benzyne-C60 cycloaddition. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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179
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Furrer F, Linden A, Stuparu MC. Towards Molecular Ribbons of Corannulene. Chemistry 2013; 19:13199-206. [DOI: 10.1002/chem.201300830] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Revised: 06/13/2013] [Indexed: 11/11/2022]
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180
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Affiliation(s)
- Michio Yamada
- Department of Chemistry, Tokyo Gakugei University , Koganei, Tokyo 184-8501, Japan
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181
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Liu Y, Artyukhov VI, Liu M, Harutyunyan AR, Yakobson BI. Feasibility of Lithium Storage on Graphene and Its Derivatives. J Phys Chem Lett 2013; 4:1737-1742. [PMID: 26282987 DOI: 10.1021/jz400491b] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanomaterials are anticipated to be promising storage media, owing to their high surface-to-mass ratio. The high hydrogen capacity achieved by using graphene has reinforced this opinion and motivated investigations of the possibility to use it to store another important energy carrier - lithium (Li). While the first-principles computations show that the Li capacity of pristine graphene, limited by Li clustering and phase separation, is lower than that offered by Li intercalation in graphite, we explore the feasibility of modifying graphene for better Li storage. It is found that certain structural defects in graphene can bind Li stably, yet a more efficacious approach is through substitution doping with boron (B). In particular, the layered C3B compound stands out as a promising Li storage medium. The monolayer C3B has a capacity of 714 mAh/g (as Li1.25C3B), and the capacity of stacked C3B is 857 mAh/g (as Li1.5C3B), which is about twice as large as graphite's 372 mAh/g (as LiC6). Our results help clarify the mechanism of Li storage in low-dimensional materials, and shed light on the rational design of nanoarchitectures for energy storage.
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Affiliation(s)
- Yuanyue Liu
- †Department of Mechanical Engineering and Materials Science, Department of Chemistry, and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, United States
| | - Vasilii I Artyukhov
- †Department of Mechanical Engineering and Materials Science, Department of Chemistry, and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, United States
| | - Mingjie Liu
- †Department of Mechanical Engineering and Materials Science, Department of Chemistry, and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, United States
| | | | - Boris I Yakobson
- †Department of Mechanical Engineering and Materials Science, Department of Chemistry, and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, United States
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182
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Boulanger P, Morinière M, Genovese L, Pochet P. Selecting boron fullerenes by cage-doping mechanisms. J Chem Phys 2013; 138:184302. [DOI: 10.1063/1.4802775] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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183
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Affiliation(s)
- Martha Mojica
- Departamento de Química, División de Ciencias Básicas e Ingeniería; Universidad Autónoma Metropolitana-Iztapalapa; 09340 México D. F. México
| | - Julio A. Alonso
- Departamento de Física Teórica, Atómica y Óptica; Universidad de Valladolid; 47011 Valladolid Spain
| | - Francisco Méndez
- Departamento de Química, División de Ciencias Básicas e Ingeniería; Universidad Autónoma Metropolitana-Iztapalapa; 09340 México D. F. México
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184
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Sato S, Maeda Y, Guo JD, Yamada M, Mizorogi N, Nagase S, Akasaka T. Mechanistic Study of the Diels–Alder Reaction of Paramagnetic Endohedral Metallofullerene: Reaction of La@C82 with 1,2,3,4,5-Pentamethylcyclopentadiene. J Am Chem Soc 2013; 135:5582-7. [DOI: 10.1021/ja309763f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Satoru Sato
- Life Science Center of Tsukuba Advanced
Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Yutaka Maeda
- Department of Chemistry, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
| | - Jing-Dong Guo
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Michio Yamada
- Department of Chemistry, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan
| | - Naomi Mizorogi
- Life Science Center of Tsukuba Advanced
Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Shigeru Nagase
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Takeshi Akasaka
- Life Science Center of Tsukuba Advanced
Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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185
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Deschamps M, Gilbert E, Azais P, Raymundo-Piñero E, Ammar MR, Simon P, Massiot D, Béguin F. Exploring electrolyte organization in supercapacitor electrodes with solid-state NMR. NATURE MATERIALS 2013; 12:351-358. [PMID: 23416727 DOI: 10.1038/nmat3567] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 01/09/2013] [Indexed: 06/01/2023]
Abstract
Supercapacitors are electrochemical energy-storage devices that exploit the electrostatic interaction between high-surface-area nanoporous electrodes and electrolyte ions. Insight into the molecular mechanisms at work inside supercapacitor carbon electrodes is obtained with (13)C and (11)B ex situ magic-angle spinning nuclear magnetic resonance (MAS-NMR). In activated carbons soaked with an electrolyte solution, two distinct adsorption sites are detected by NMR, both undergoing chemical exchange with the free electrolyte molecules. On charging, anions are substituted by cations in the negative carbon electrode and cations by anions in the positive electrode, and their proportions in each electrode are quantified by NMR. Moreover, acetonitrile molecules are expelled from the adsorption sites at the negative electrode alone. Two nanoporous carbon materials were tested, with different nanotexture orders (using Raman and (13)C MAS-NMR spectroscopies), and the more disordered carbon shows a better capacitance and a better tolerance to high voltages.
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186
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Bajales N, Schmaus S, Miyamashi T, Wulfhekel W, Wilhelm J, Walz M, Stendel M, Bagrets A, Evers F, Ulas S, Kern B, Böttcher A, Kappes MM. C58 on Au(111): A scanning tunneling microscopy study. J Chem Phys 2013; 138:104703. [DOI: 10.1063/1.4793761] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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187
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Hörmann F, Brettreich M, Donaubauer W, Hampel F, Hirsch A. Highly Efficient Synthesis of Globular (Bola)amphiphilic [5:1]Hexakisadducts of C60. Chemistry 2013; 19:2814-25. [DOI: 10.1002/chem.201203863] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Indexed: 11/06/2022]
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188
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189
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Tan YZ, Li J, Du MY, Lin SC, Xie SY, Lu X, Huang RB, Zheng LS. Exohedrally stabilized C70 isomer with adjacent pentagons characterized by crystallography. Chem Sci 2013. [DOI: 10.1039/c3sc50141h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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190
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Wang L, Chen J, Ge L, Rudolph V, Zhu Z. Difference in the cooperative interaction between carbon nanotubes and Ru particles loaded on their internal/external surface. RSC Adv 2013. [DOI: 10.1039/c3ra41208c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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191
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Tang SW, Wang FD, Zhang NN, Chang YF, Sun H, Zhang JP, Xie HM, Qiu YQ, Wang RS. Electronic structures and optical properties of the IPR-violating C60X8 (X = H, F, and Cl) fullerene compounds: a computational study. Phys Chem Chem Phys 2012; 14:16476-85. [PMID: 23131708 DOI: 10.1039/c2cp42134h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimulated by the preparation and characterization of the isolated pentagon rule (IPR) violating chlorofullerene: C(60)Cl(8) (Nat. Mater. 2008, 7, 790-794), we have performed a systematic investigation on the structural stabilities, electronic and optical properties of the IPR-violating C(60)X(8) (X = H, F, and Cl) fullerene compounds via density functional theory. The large energy gaps between the highest occupied and the lowest unoccupied molecular orbitals provide a clear indication of high chemical stabilities of C(60)X(8) derivatives, and moreover, the C(60)X(8) molecules present great aromatic character with the negative nucleus independent chemical shift values. In the addition reactions of C(60) (C(2v)) + 4X(2) → C(60)X(8), a series of exothermic processes are involved, with high reaction energies ranging from -71.97 to -233.16 kcal mol(-1). An investigation on the electronic property shows that C(60)F(8) and C(60)Cl(8) could be excellent electron acceptors as a consequence of large vertical electron affinities. The density of state analysis suggests that the frontier molecular orbitals of C(60)X(8) are mainly from the carbon orbitals of two separate annulene subunits, and the influence from X atoms is secondary. In addition, the ultraviolet-visible spectra and second-order hyperpolarizabilities of C(60)X(8) are calculated by means of time-dependent density functional theory and a finite field approach, respectively. Both the average static linear polarizability <α> and second-order hyperpolarizability <γ> of C(60)X(8) increase greatly compared to those of C(60).
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Affiliation(s)
- Shu-Wei Tang
- Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People's Republic of China
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192
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Feng L, Suzuki M, Mizorogi N, Lu X, Yamada M, Akasaka T, Nagase S. Mapping the Metal Positions inside Spherical C80Cages: Crystallographic and Theoretical Studies of Ce2@D5h-C80and Ce2@Ih-C80. Chemistry 2012; 19:988-93. [DOI: 10.1002/chem.201202341] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Indexed: 11/08/2022]
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193
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Wu TC, Chen MK, Lee YW, Kuo MY, Wu YT. Bowl-Shaped Fragments of C70or Higher Fullerenes: Synthesis, Structural Analysis, and Inversion Dynamics. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201208200] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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194
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Wu TC, Chen MK, Lee YW, Kuo MY, Wu YT. Bowl-Shaped Fragments of C70or Higher Fullerenes: Synthesis, Structural Analysis, and Inversion Dynamics. Angew Chem Int Ed Engl 2012; 52:1289-93. [DOI: 10.1002/anie.201208200] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Indexed: 11/11/2022]
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195
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Synthesis and characterization of M-fullerene/TiO2 photocatalysts designed for degradation azo dye. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.05.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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196
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Shustova NB, Cozzolino AF, Dincă M. Conformational Locking by Design: Relating Strain Energy with Luminescence and Stability in Rigid Metal–Organic Frameworks. J Am Chem Soc 2012; 134:19596-9. [DOI: 10.1021/ja3103154] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Natalia B. Shustova
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139,
United States
| | - Anthony F. Cozzolino
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139,
United States
| | - Mircea Dincă
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139,
United States
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197
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Tong X, Qin Y, Guo X, Moutanabbir O, Ao X, Pippel E, Zhang L, Knez M. Enhanced catalytic activity for methanol electro-oxidation of uniformly dispersed nickel oxide nanoparticles-carbon nanotube hybrid materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:3390-3395. [PMID: 22865674 DOI: 10.1002/smll.201200839] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 06/11/2012] [Indexed: 06/01/2023]
Abstract
Highy crystalline NiO nanoparticles are uniformly grown on the walls of carbon nanotubes (CNTs) by atomic layer deposition (ALD) at moderate temperature.Their size and stoichiometry are controlled by the ALD process parameters. The obtained NiO/CNT hybrids exhibit excellent performance in the electro-oxidation of methanol.
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Affiliation(s)
- Xili Tong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China; Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
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198
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Liu X, Li L, Liu B, Wang D, Zhao Y, Gao X. Theoretical Study on the Ground State Structure of Uranofullerene U@C82. J Phys Chem A 2012; 116:11651-5. [PMID: 23134567 DOI: 10.1021/jp306481e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xin Liu
- School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Lin Li
- School of Chemistry, Dalian University of Technology, Dalian 116024, China
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199
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Theoretical investigation on the saturated hydrides of F5F7–C60 with in-out isomerism. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.08.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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200
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Enhanced catalytic performance of CeO2 confined inside carbon nanotubes for dehydrogenation of ethylbenzene in the presence of CO2. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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