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Matsuo Y, Maeda C, Tsutsui Y, Tanaka T, Seki S. Synthesis of Closed-Heterohelicenes Interconvertible between Their Monomeric and Dimeric Forms. Angew Chem Int Ed Engl 2023; 62:e202314968. [PMID: 37883214 DOI: 10.1002/anie.202314968] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
Oxidative fusion reaction of cyclic heteroaromatic pentads consisting of pyrrole and thiophene gave closed-heterohelicene monomers and dimers depending on the oxidation conditions. Specifically, oxidation with [bis(trifluoroacetoxy)iodo]benzene (PIFA) gave closed-[7]helicene dimers connected at the β-position of one of the pyrrole units with remarkably elongated C-C bonds of about 1.60 Å. Although this bond was intact against thermal and physical activations, homolytic bond dissociation took place in DMSO upon irradiation with UV light to give the corresponding monomers. Thus, interconversion between the closed-helicene monomer and dimer was achieved. The optically pure dimer was photo-dissociated into the monomers associated with a turn-on of circularly polarized luminescence (CPL).
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Affiliation(s)
- Yusuke Matsuo
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Yusuke Tsutsui
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takayuki Tanaka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Zhang C, Liu Y, Ma Z, Wang G, Li C, Yang F, Shi J, Li R, Wang H. Dragon-Boat-Type Heptathienoacenes: Synthesis, Structures, and Their Applications in OFETs. Org Lett 2022; 24:8741-8746. [DOI: 10.1021/acs.orglett.2c03174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chao Zhang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Yang Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Chunli Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Fangxu Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianwu Shi
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
| | - Rongjin Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Hua Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China
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Wang M, Dang L, Xu W, Ma Z, Shao L, Wang G, Li C, Wang H. Thiophene/selenophene-based S-shaped double helicenes: regioselective synthesis and structures. Beilstein J Org Chem 2022; 18:809-817. [PMID: 35875710 PMCID: PMC9273980 DOI: 10.3762/bjoc.18.81] [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: 04/26/2022] [Accepted: 07/01/2022] [Indexed: 11/23/2022] Open
Abstract
2,5-Di(trimethylsilanyl)dithieno[2,3-b:3′,2′-d]thiophene ((TMS)2-bb-DTT), 2,5-di(trimethylsilanyl)diseleno[2,3-b:3′,2′-d]thiophene ((TMS)2-bb-DST), and 2,5-di(trimethylsilanyl)diseleno[2,3-b:3′,2′-d] selenophene ((TMS)2-bb-DSS) were used as starting materials to synthesize three S-shaped double helicenes (i.e., DH-1, DH-2, and DH-3) through monobromination, formylation, the Wittig reaction, and double oxidative photocyclization. The photocyclization was a highly regioselective process. The molecular structures of DH-1 and DH-2 were confirmed by X-ray single-crystal analysis. Multiple intermolecular interactions, such as C–S, C–Se, S–S, S–Se, and Se–Se, were observed in the crystal packing structures of these compounds. Spectroscopic results and our previous work showed that the combination of molecular structure change and heteroatom replacement from S to Se could precisely modulate molecular energy levels.
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Affiliation(s)
- Mengjie Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Lanping Dang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Wan Xu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Liuliu Shao
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Chunli Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Hua Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
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Wu Z, Xu W, Li C, Ma Z, Wang G, Wang H. Synthesis and crystal structures of unsymmetrical wave-shaped heptathienoacenes. Org Biomol Chem 2022; 20:5145-5151. [PMID: 35708061 DOI: 10.1039/d2ob00800a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Three unsymmetrical wave-shaped heptathienoacenes (UHT-1, UHT-2 and UHT-3) with sulfur atoms at different isomeric locations in the two terminal thiophene rings were designed and synthesized. The synthetic strategy contains two crucial steps, including the cross-coupling of two different dithienothiophene isomers (DTT) from dithieno[2,3-b:3',2'-d]thiophene (bb-DTT), dithieno[2,3-b:2',3'-d]thiophene (bt-DTT) and dithieno[2,3-b:3',4'-d]thiophene (bs-DTT) as building blocks through the Negishi coupling and intramolecular cyclization reactions with (SnBu3)2S. X-ray crystal structures of UHT-1, UHT-2 and UHT-3 show that the molecules adopt a wave-shaped geometry with multiple intermolecular interactions, such as S-S, S-C and S-H, which result in different crystal packing patterns. The isomeric location of the sulfur atoms of the two terminal thiophene rings of UHT-1, UHT-2 and UHT-3 plays an important role in tuning π-electronic conjugation and spectroscopic behaviors.
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Affiliation(s)
- Zhiping Wu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Wan Xu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Chunli Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Hua Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
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Raouafi S, Hassine BB, Aloui F. Nitrile grafted thia[5]Helicenes through a photocyclization pathway of styrylnaphtho[2,1-b]thiophenes: Synthesis and photophysical properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xu W, Wei J, Tang K, Ma Z, Shi J, Li C, Wang H. Thiophene/selenophene-based windmill-shaped triple [6]helicenes. Org Chem Front 2022. [DOI: 10.1039/d2qo01208a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The construction of four windmill-shaped triple [6]helicenes with the substitution from S to Se in the molecular skeletons are studied. The properties of their crystal structures, spectroscopic behaviors and chirality are investigated.
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Affiliation(s)
- Wan Xu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Jichang Wei
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Kun Tang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Jianwu Shi
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Chunli Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Hua Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
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Chen XY, Li JK, Wang XY. Recent Advances in the Syntheses of Helicene-Based Molecular Nanocarbons via the Scholl Reaction. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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