1
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Yamamoto K, Tsutsui K, Tanuma M, Ito K, Wakamatsu K, Yamamoto K, Nakamura Y. Phenothiazine cyclic hexamers: synthesis, properties, and complexation behavior with C 60. Chem Commun (Camb) 2024; 60:2220-2223. [PMID: 38314630 DOI: 10.1039/d3cc06206f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Phenothiazine cyclic hexamers linked at the 3,7-positions were synthesized. Effects of the cyclic structure as well as substituent effects of the nitrogen atom were disclosed. Furthermore, the cyclic hexamer encapsulated C60 inside the ring in a 1 : 1 ratio giving a Saturn-type complex in solution. The structure and interactions were discussed based on DFT calculations.
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Affiliation(s)
- Koji Yamamoto
- Department of Pharmaceutical Sciences, Shujitsu University, 1-6-1 Nishigawara, Okayama 703-8516, Japan.
| | - Kanta Tsutsui
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Miho Tanuma
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Kaname Ito
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Koji Yamamoto
- Department of Applied Chemistry, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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2
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Mitani T, Tsurumaki E, Toyota S. Structures and Supramolecular Properties of Inclusion Complexes of Anthracene-Triptycene Nanocages with Fullerene Guests and Their Dynamic Motion as Molecular Gyroscopes. Chemistry 2023; 29:e202203462. [PMID: 36460616 DOI: 10.1002/chem.202203462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/04/2022]
Abstract
Three derivatives of macrocyclic cage compounds consisting of diarylanthracene and triptycene units were synthesized. These nanocages formed host-guest complexes with C60 and other fullerene guests as confirmed by 1 H NMR and fluorescence spectroscopy. The association constant of the mesityl and 2,4,6-tributoxyphenyl derivatives with C60 was determined to be 2.2 × 104 L mol-1 , which was larger than that of the pentafluorophenyl derivative. Direct experimental evidence of the complexation was obtained by X-ray diffraction analysis: the guest C60 molecule was included in the cavity via multipoint CH⋅⋅⋅π interactions. Dynamic disorders of the included C60 molecule in variable-temperature X-ray analysis indicated uniaxial motion, such as gyroscopic motion. The unique dynamic behavior of the spherical C60 rotor anchored by the cage stator via CH⋅⋅⋅π interactions in the crystal, as well as substituent effects on the association properties, are discussed with the aid of DFT calculations.
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Affiliation(s)
- Takuji Mitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
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3
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Shimizu H, Huang P, Isomura E, Nishinaga T, Iyoda M. π-Extended Macrocyclic Oligothiophene Heptamer and Tetradecamer: Ringsize Effects on the Physical Properties and Morphological Features. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hideyuki Shimizu
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Pochi Huang
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Eigo Isomura
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Tohru Nishinaga
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Masahiko Iyoda
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
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Kajiyama K, Tsurumaki E, Wakamatsu K, Fukuhara G, Toyota S. Complexation of an Anthracene-Triptycene Nanocage Host with Fullerene Guests through CH⋅⋅⋅π Contacts. Chempluschem 2021; 86:716-722. [PMID: 33620779 DOI: 10.1002/cplu.202000816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/11/2021] [Indexed: 12/22/2022]
Abstract
A bicyclic anthracene macrocycle containing two triptycene units at the bridgehead positions was synthesized by Ni-mediated coupling of the corresponding precursor as a cage-shaped aromatic hydrocarbon host. This cage host formed an inclusion complex with C60 or C70 guest in 1 : 1 ratio in solution. The association constants (Ka ) determined by the fluorescence titration method were 1.3×104 and 3.3×105 L mol -1 for the C60 and C70 complexes, respectively, at 298 K in toluene. DFT calculations revealed that the guest molecules were included in the middle of the cavity with several CH⋅⋅⋅π contacts. The strong affinity of the cage host for the fullerene guests and the high selectivity toward C70 are discussed on the basis of spectroscopic and structural data.
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Affiliation(s)
- Kazuki Kajiyama
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama, 700-0005, Japan
| | - Gaku Fukuhara
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
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5
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Stasyuk OA, Stasyuk AJ, Solà M, Voityuk AA. Photoinduced electron transfer in nano-Saturn complexes of fullerene. Phys Chem Chem Phys 2021; 23:2126-2133. [PMID: 33437974 DOI: 10.1039/d0cp05919f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The photoinduced electron transfer is studied computationally in several Saturn-shaped inclusion complexes of carbo-aromatic rings and C60 fullerene - C72⊃C60, C96⊃C60, C120⊃C60, and C168⊃C60. Analysis of their structural and electronic properties shows that the charge separation process is efficient in C120⊃C60 and C168⊃C60 where the host molecule resembles the conjugated [24]circulene unit. In contrast, the electron transfer is not feasible in the complexes of the oligophenylene-based rings C72⊃C60 and C96⊃C60.
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Affiliation(s)
- O A Stasyuk
- Institut de Química Computacional and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany 69, 17003 Girona, Spain.
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Shirahata K, Takashika M, Hirabayashi K, Hasegawa M, Otani H, Yamamoto K, Ie Y, Shimizu T, Aoyagi S, Iyoda M. Reduction of Ethynylenes to Vinylenes in a Macrocyclic π-Extended Thiophene Skeleton Under McMurry Coupling Conditions. J Org Chem 2021; 86:302-309. [PMID: 33290650 DOI: 10.1021/acs.joc.0c02080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
McMurry coupling is one of the most useful and convenient tools for the preparation of π-conjugated molecules. However, for the synthesis of strained macrocycles containing ethynylene linkages, reduction of ethynylene to vinylene linkage sometimes took place. Especially, for the synthesis of macrocyclic π-extended thiophene hexamers using McMurry coupling of dialdehyde 1 composed of three thienylene, two ethynylene, and two formyl groups, reduction of ethynylenes to vinylenes often takes place to produce unique products in a one-pot procedure, depending on very small steric and electronic effects such as reaction temperature, amounts of titanium reagent, and substituents of thiophene hexamers. The attractive structures and functional properties of reduced thiophene hexamers have been determined using X-ray analysis and OFET measurements.
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Affiliation(s)
- Keigo Shirahata
- Graduate School of Environment and Information Sciences, Yokohama National University, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Masataka Takashika
- Graduate School of Environment and Information Sciences, Yokohama National University, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Kazunori Hirabayashi
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Masashi Hasegawa
- School of Science, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Hiroyuki Otani
- Graduate School of Environment and Information Sciences, Yokohama National University, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Keitaro Yamamoto
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yutaka Ie
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Toshio Shimizu
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Nagoya City University, Nagoya 467-8501, Japan
| | - Masahiko Iyoda
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
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Singh N, Singh R, Joshi KB, Verma S. Constitutionally Isomeric Aromatic Tripeptides: Self-Assembly and Metal-Ion-Modulated Transformations. Chempluschem 2020; 85:2001-2009. [PMID: 32876402 DOI: 10.1002/cplu.202000464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/10/2020] [Indexed: 12/21/2022]
Abstract
Self-assembling peptides based on aromatic amino acids can adopt diverse nanostructures which primarily depend on their molecular structures. Therefore, to understand the nature of self-assembly on the molecular level we rationally designed two constitutional isomers of short aromatic peptides. The first isomer consists of a tyrosine moiety at the N-terminus and the second isomer consists of a tyrosine moiety at the C-terminus of the FF peptide, a core recognition motif of Amyloid β peptides. Therefore, it can be considered that both the designed tripeptides are the analogues of the FFF peptide with only atomic(-H) level replacement by -OH functional group on the first and last phenyl ring, respectively. The first isomer self-assembled into 2D porous nanosheets ("Nanowebs"), however the second isomers produced toroidal shapes with central spheres ("Nano-Saturn" like assemblies). Interestingly, the presence of the transition-metal ions (copper, zinc and iron) triggered the self-assembly of both the peptides into fibrous circular discs, nanomats and nanoplates like assembly.
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Affiliation(s)
- Narendra Singh
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur, 208016, India
| | - Ramesh Singh
- Department of Chemistry, School of Chemical Science and Technology, Dr. Harisingh Gour Central University, Sagar, MP, 470003, India
| | - Khashti Ballabh Joshi
- Department of Chemistry, School of Chemical Science and Technology, Dr. Harisingh Gour Central University, Sagar, MP, 470003, India
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur, 208016, India
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8
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Zhan SZ, Li JH, Zhang GH, Li MD, Sun S, Zheng J, Ning GH, Li M, Kuang DB, Wang XD, Li D. Coordination disk-type nano-Saturn complexes. Chem Commun (Camb) 2020; 56:3325-3328. [PMID: 32083264 DOI: 10.1039/d0cc00532k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first coordination disk-type nano-Saturn complexes, [Cu10(Mim)10]⊃C60 and [Cu10(Mim)10]⊃C70 (Mim = 2-methylimidazolate), were assembled under one-pot solvothermal conditions. The highest number of 30 C-Hπ interactions between the [Cu10(Mim)10] disk and the C60/C70 surfaces drives the formation of the nano-Saturns. The calculated interaction energy is much larger than that of most of the reported disk-type nano-Saturns. Different photoinduced charge/energy transfer mechanisms are present for both nano-Saturn systems to quench the intrinsic luminescence of the [Cu10(Mim)10] disk.
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Affiliation(s)
- Shun-Ze Zhan
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China. and Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
| | - Jing-Hong Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
| | - Guo-Hui Zhang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
| | - Ming-De Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
| | - Shanshan Sun
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
| | - Ji Zheng
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China.
| | - Guo-Hong Ning
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China.
| | - Mian Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China.
| | - Dai-Bin Kuang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xu-Dong Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Dan Li
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China.
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Fujiwara T, Takashika M, Hasegawa M, Ie Y, Aso Y, Aoyagi S, Otani H, Iyoda M. Small Structural Changes in the Alkyl Substituents of Macrocyclic π-Extended Thiophene Oligomers Causes a Key Effect on Their Stacking and Functional Properties. Chempluschem 2020; 84:694-703. [PMID: 31944018 DOI: 10.1002/cplu.201900062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/24/2019] [Indexed: 11/10/2022]
Abstract
Three new macrocyclic π-extended thiophene hexamers composed of four thienylene-ethynylene and two thienylene-vinylene units with or without four alkyl substituents have been synthesized. Despite similar shape-persistent structures in solution, the alkyl substituents control the solid-state structures and morphologies. The unsubstituted hexamer exhibited a planar conformation with a theoretically predicted structure in the solid state; however, the planar hexamer with four ethyl substituents formed a closely stacked columnar crystal structure to exhibit π-π interactions. Interestingly, the hexamer with four butyl substituents adopted both planar and twisted conformations in the solid state, exhibiting polymorphism based on induced-fit stacking of molecules. Thus, the butyl-substituted hexamer produces a mixture of yellow, orange, and red single crystals from toluene/acetone, and X-ray analysis revealed six different conformations. Consequently, the small structural difference in the macrocycles causes a key effect on their functional properties in the solid state, and their morphology governs electrical conductivity and organic field-effect-transistor activity. The polymorphism of the hexamers was applied to the switching of film morphology.
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Affiliation(s)
- Toshihiro Fujiwara
- Graduate School of Environment and Information Sciences, Yokohama National University Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Masataka Takashika
- Graduate School of Environment and Information Sciences, Yokohama National University Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Masashi Hasegawa
- School of Science, Kitasato University Sagamihara, Kanagawa, 252-0373, Japan
| | - Yutaka Ie
- The Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, 567-0047, Japan
| | - Yoshio Aso
- The Institute of Scientific and Industrial Research, Osaka University Ibaraki, Osaka, 567-0047, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Hiroyuki Otani
- Graduate School of Environment and Information Sciences, Yokohama National University Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Masahiko Iyoda
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University Hachioji, Tokyo, 192-0397, Japan
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Miki K, Ohe K. π‐Conjugated Macrocycles Bearing Angle‐Strained Alkynes. Chemistry 2019; 26:2529-2575. [DOI: 10.1002/chem.201904114] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/24/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Koji Miki
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto University Katsura Nishikyo-ku Kyoto 615–8510 Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto University Katsura Nishikyo-ku Kyoto 615–8510 Japan
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Toyota S, Yamamoto Y, Wakamatsu K, Tsurumaki E, Muñoz-Castro A. Nano-Saturn with an Ellipsoidal Body: Anthracene Macrocyclic Ring–C70 Complex. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190133] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Yuta Yamamoto
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Alvaro Muñoz-Castro
- Laboratorio de Química Inorgánica y Materiales Moleculares Universidad Autonoma de Chile, Llano Subercaceaux, 2801 San Miguel, Santiago, Chile
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12
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Toyota S, Tsurumaki E. Exploration of Nano-Saturns: A Spectacular Sphere-Ring Supramolecular System. Chemistry 2019; 25:6878-6890. [DOI: 10.1002/chem.201900039] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/25/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Shinji Toyota
- Department of Chemistry, School of Science; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
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13
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Yamamoto Y, Tsurumaki E, Wakamatsu K, Toyota S. Nano‐Saturn: Experimental Evidence of Complex Formation of an Anthracene Cyclic Ring with C
60. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804430] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuta Yamamoto
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
| | - Eiji Tsurumaki
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
| | - Kan Wakamatsu
- Department of ChemistryFaculty of ScienceOkayama University of Science 1-1 Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Shinji Toyota
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
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14
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Yamamoto Y, Tsurumaki E, Wakamatsu K, Toyota S. Nano‐Saturn: Experimental Evidence of Complex Formation of an Anthracene Cyclic Ring with C
60. Angew Chem Int Ed Engl 2018; 57:8199-8202. [DOI: 10.1002/anie.201804430] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Yuta Yamamoto
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
| | - Eiji Tsurumaki
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
| | - Kan Wakamatsu
- Department of ChemistryFaculty of ScienceOkayama University of Science 1-1 Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Shinji Toyota
- Department of Chemistry and Materials ScienceTokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8551 Japan
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15
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Shimizu H, Park KH, Otani H, Aoyagi S, Nishinaga T, Aso Y, Kim D, Iyoda M. A Saturn-Like Complex Composed of Macrocyclic Oligothiophene and C 60 Fullerene: Structure, Stability, and Photophysical Properties in Solution and the Solid State. Chemistry 2018; 24:3793-3801. [PMID: 29315942 DOI: 10.1002/chem.201705565] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 11/11/2022]
Abstract
A Saturn-like 1:1 complex composed of macrocyclic oligothiophene E-8T7A and C60 fullerene (C60 ) was synthesized to investigate the interaction between macrocyclic oligothiophenes and C60 in solution and the solid state. Because the Saturn-like 1:1 complex E-8T7A⋅C60 is mainly stabilized by van der Waals interactions between C60 and the sulfur atoms of the E-8T7A macrocycle, C60 is rather weakly incorporated inside the macro-ring in solution. However, in the solid state the Saturn-like 1:1 complex preferentially formed single crystals or nanostructured polymorphs. Interestingly, X-ray analysis and theoretical calculations exhibited hindered rotation of C60 in the Saturn-like complex due to interactions between C60 and the sulfur atoms. Furthermore, the photoinduced charge transfer (CT) interaction between E-8T7A and C60 in solution was investigated by using femtosecond transient absorption (TA) spectroscopy. The ultrafast TA spectral changes in the photoinduced absorption bands were attributed to the CT process in the Saturn-like structure.
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Affiliation(s)
- Hideyuki Shimizu
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Kyu Hyung Park
- Department of Chemistry and Spectroscopy Laboratory for, Functional π-Electronic Systems, Yonsei University, Seoul, 03722, Korea
| | - Hiroyuki Otani
- Graduate School of Environment and Information Sciences, Yokohama National University, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Tohru Nishinaga
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Yoshio Aso
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, 767-0047, Japan
| | - Dongho Kim
- Department of Chemistry and Spectroscopy Laboratory for, Functional π-Electronic Systems, Yonsei University, Seoul, 03722, Korea
| | - Masahiko Iyoda
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
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