1
|
Te⋯N secondary-bonding interactions in tellurium crystals: Supramolecular aggregation patterns and a comparison with their lighter congeners. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214397] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
2
|
Yuan J, Song Y, Li X, Xie J, Dong S, Zhu K. A Tubular Belt and a Möbius Strip with Dynamic Joints: Synthesis, Structure, and Host-Guest Chemistry. Org Lett 2021; 23:9554-9558. [PMID: 34870442 DOI: 10.1021/acs.orglett.1c03781] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two unprecedented isomeric macrocycles, a tubular belt and a Möbius strip, with thianthrene joints have been constructed through a one-step cyclization reaction. Both structures are fully characterized by NMR spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. A complexation study reveals that the tubular belt is a container for electron deficient guests. The Möbius strip exhibits twist-migration dynamics, which can be regulated by a sodium ion. Their facile synthesis, unique structure, and diverse host-guest chemistry enrich the belt chemistry.
Collapse
Affiliation(s)
- Jun Yuan
- School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Yunyi Song
- School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Xia Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Jialin Xie
- School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Kelong Zhu
- School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| |
Collapse
|
3
|
Yuan J, Lv W, Li A, Zhu K. A self-assembled M 2L 2 truncated square and its application as a container for fullerenes. Chem Commun (Camb) 2021; 57:12848-12851. [PMID: 34787602 DOI: 10.1039/d1cc05581j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An unprecedented bisthianthrene dipyridyl ligand was designed and synthesized for coordination driven self-assembly. The combination of this conformationally dynamic linker with a 90° convergent metal corner exclusively afforded a novel M2L2 truncated square-like metallamacrocycle. The single crystal X-ray structure reveals a belt-shaped geometry with a cavity diameter of ca. 13.7 Å. The breathable cavity and electron-rich thianthreno panels enable the highly efficient binding of the fullerenes C60 (Ka = 5.1 × 106 M-1) and C70 (Ka = 3.7 × 106 M-1). The encapsulation of C60 is fully confirmed by NMR, mass spectroscopy and single crystal X-ray diffraction analyses. The cyclic voltammograms further reveal that the truncated square is redox active. The strong binding affinity, adaptive complexation, and redox activity of the thianthrene-incorporated metallamacrocycle provide new insights into the design of supramolecular hosts.
Collapse
Affiliation(s)
- Jun Yuan
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Wanqian Lv
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Anquan Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Kelong Zhu
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| |
Collapse
|
4
|
Wang S, Yuan J, Xie J, Lu Z, Jiang L, Mu Y, Huo Y, Tsuchido Y, Zhu K. Sulphur‐Embedded Hydrocarbon Belts: Synthesis, Structure and Redox Chemistry of Cyclothianthrenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shenghua Wang
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Jun Yuan
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Jialin Xie
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Zonghuan Lu
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Long Jiang
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| | - Yingxiao Mu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
| | - Yoshitaka Tsuchido
- Department of Chemistry Faculty of Science Tokyo University of Science, Kagurazaka 1–3 Shinjuku-ku Tokyo 162-8601 Japan
| | - Kelong Zhu
- School of Chemistry Sun Yat-Sen University Guangzhou 510275 China
| |
Collapse
|
5
|
Wang S, Yuan J, Xie J, Lu Z, Jiang L, Mu Y, Huo Y, Tsuchido Y, Zhu K. Sulphur-Embedded Hydrocarbon Belts: Synthesis, Structure and Redox Chemistry of Cyclothianthrenes. Angew Chem Int Ed Engl 2021; 60:18443-18447. [PMID: 34110693 DOI: 10.1002/anie.202104054] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/07/2021] [Indexed: 11/06/2022]
Abstract
Cyclothianthrenes, a series of sulphur-embedded hydrocarbon belts proposed a decade ago, were successfully constructed through a stepwise bottom-up synthesis. The belt [6]cyclothianthrene ([6]CT) is the smallest and most strained member of the family yet reported. Both [6]CT and [8]CT are the first examples of cyclothianthrene characterized by single crystal X-ray diffraction. An unprecedented chiral belt [7]CT and a Möbius-shaped [9]CT were also achieved via modular synthesis. Crystallographic and computational studies show that belts [6]CT-[8]CT have prism-like conformations with well-defined tubular cavities which have potential for guest molecule inclusion. Cyclic voltammograms further revealed that these belts are redox-active. The success of constructing sulphur-embedded hydrocarbon belts, that is, cyclothianthrenes, greatly enriches the chemistry of heteroatom-doped molecular belts and tubes.
Collapse
Affiliation(s)
- Shenghua Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jun Yuan
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jialin Xie
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zonghuan Lu
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Long Jiang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yingxiao Mu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yoshitaka Tsuchido
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Kelong Zhu
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| |
Collapse
|
6
|
Zhou B, Gabbaï FP. Anion Chelation via Double Chalcogen Bonding: The Case of a Bis-telluronium Dication and Its Application in Electrophilic Catalysis via Metal-Chloride Bond Activation. J Am Chem Soc 2021; 143:8625-8630. [PMID: 34085823 DOI: 10.1021/jacs.1c04482] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Telluronium cations have long been known to engage their counteranions via secondary interactions. Yet, this property has rarely been exploited for anion binding. Motivated by such an application, we have now synthesized a bis-telluronium dication ([3]2+) that was obtained as a tetrafluoroborate salt by reaction of 2,7-di-tert-butyl-9,9-dimethylxanthene-4,5-diboronic acid with phenoxatellurine difluoride and BF3·OEt2. As confirmed by the formation of Te-(μ-BF4)-Te bridges in the structure of [3][BF4]2, [3]2+ functions as a bidentate Lewis acid toward anions. [3][BF4]2 has also been converted into the more exposed [3][BArF24]2 ([BArF24]- = [B(3,5-(CF3)2C6H3)4]-). The latter, which readily ionizes Ph3CCl, displays a chloride anion binding constant that exceeds that of a monofunctional model compound by almost 4 orders of magnitude. The unique properties of this new bis-telluronium dication are further highlighted by its ability to activate Ph3PAuCl and cis-(Ph3P)2PtCl2, leading to catalytic systems highly active in the cycloisomerization of propargylamide or enyne substrates.
Collapse
Affiliation(s)
- Benyu Zhou
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| |
Collapse
|