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Mei P, Morimoto H, Okada Y, Matsuo K, Hayashi H, Saeki A, Yamada H, Aratani N. Complexation study of a 1,3-phenylene-bridged cyclic hexa-naphthalene with fullerenes C 60 and C 70 in solution and 1D-alignment of fullerenes in the crystals. RSC Adv 2023; 13:33459-33462. [PMID: 38025867 PMCID: PMC10644901 DOI: 10.1039/d3ra06526j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023] Open
Abstract
To investigate the host ability of a simple macrocycle, 1,3-phenylene-bridged naphthalene hexamer N6, we evaluated the complexation of N6 with fullerenes in toluene and in the crystals. The complexes in the solid-state demonstrate the one-dimensional alignment of fullerenes. The single-crystals of the C60@N6 composite have semiconductive properties revealed by photoconductivity measurements.
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Affiliation(s)
- Peifeng Mei
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Hirofumi Morimoto
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Yuta Okada
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Kyohei Matsuo
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Hironobu Hayashi
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Akinori Saeki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka Suita 565-0871 Japan
| | - Hiroko Yamada
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Naoki Aratani
- Division of Materials Science, Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho Ikoma 630-0192 Japan
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Hou B, Li K, He H, Hu J, Xu Z, Xiang Q, Wang P, Chen X, Sun Z. Stable Crystalline Nanohoop Radical and Its Self-Association Promoted by van der Waals Interactions. Angew Chem Int Ed Engl 2023; 62:e202301046. [PMID: 36754831 DOI: 10.1002/anie.202301046] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/10/2023]
Abstract
A stable nanohoop radical (OR3) combining the structures of cycloparaphenylene and an olympicenyl radical is synthesized and isolated in the crystalline state. X-ray crystallographic analysis reveals that OR3 forms a unique head-to-tail dimer that further aggregates into a one-dimensional chain in the solid state. Variable-temperature NMR and concentration-dependent absorption measurements indicate that the π-dimer is not formed in solution. An energy decomposition analysis indicates that van der Waals interactions are the driving force for the self-association process, in contrast with other olympicenyl derivatives that favor π-dimerization. The physical properties in solution phase have been studied, and the stable cationic species obtained by one-electron chemical oxidation. This study offers a new molecular design to modulate the self-association of organic radicals for overcoming the spin-Peierls transition, and to prepare novel nanohoop compounds with spin-related properties.
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Affiliation(s)
- Bingxia Hou
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Ke Li
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Huijie He
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Jinlian Hu
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Zhuofan Xu
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Qin Xiang
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Peng Wang
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Xing Chen
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
| | - Zhe Sun
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin university, 92 Weijin Road, Tianjin, 300072, China
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