1
|
Yu Y, Hu Y, Ning C, Shi W, Yang A, Zhao Y, Cao ZY, Xu Y, Du P. BINOL-Based Chiral Macrocycles and Cages. Angew Chem Int Ed Engl 2024; 63:e202407034. [PMID: 38708741 DOI: 10.1002/anie.202407034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/05/2024] [Accepted: 05/05/2024] [Indexed: 05/07/2024]
Abstract
Chirality, a fundamental principle in chemistry, biology, and medicine, is prevalent in nature and in organisms. Chiral molecules, such as DNA, RNA, and proteins, are crucial in biomolecular synthesis, as well as in the development of functional materials. Among these, 1,1'-binaphthyl-2,2'-diol (BINOL) stands out for its stable chiral configuration, versatile functionality, and commercial availability. BINOL is widely employed in asymmetric catalysis and chiral materials. This review mainly focuses on recent research over the past five years concerning the use of BINOL derivatives for constructing chiral macrocycles and cages. Their contributions to chiral luminescence, enantiomeric separation, transmembrane transport, and asymmetric catalysis were examined.
Collapse
Affiliation(s)
- Yabing Yu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Yaning Hu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Chengbing Ning
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Wudi Shi
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Ao Yang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Yibo Zhao
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Zhong-Yan Cao
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Youzhi Xu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
| | - Pingwu Du
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, 475004, China
- Hefei National Research Center for Physical Sciences at the Microscale, Anhui Laboratory of Advanced Photon Science and Technology, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026, China
| |
Collapse
|
2
|
Jiang Z, Kuninobu Y. Synthesis of a novel twisted π-conjugated macrocycle via double Friedel-Crafts reaction and its physical properties. Chem Commun (Camb) 2024. [PMID: 38963239 DOI: 10.1039/d4cc00890a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
We synthesized a cyclic molecule from diarylalkynes and Meldrum's acid derivatives as the methylenation reagent via double Friedel-Crafts reaction. Single-crystal X-ray structure analysis confirmed the twisted structure of the molecule. We also investigated their physical properties and homoconjugation by UV-Vis, photoluminescence, DFT and TD-DFT calculations.
Collapse
Affiliation(s)
- Zhiyan Jiang
- Department of Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-Shi, Fukuoka 816-8580, Japan
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-Shi, Fukuoka 816-8580, Japan.
- Department of Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-Shi, Fukuoka 816-8580, Japan
| |
Collapse
|
3
|
Sokolova AD, Platonov DN, Belyy AY, Salikov RF, Erokhin KS, Tomilov YV. The Antiaromatic Nucleophilic Substitution Reaction (S NAAr) in Cycloheptatrienyl-Anion Containing Zwitterions with a Möbius-Aromatic Intermediate. Org Lett 2024. [PMID: 38958743 DOI: 10.1021/acs.orglett.4c01446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Antiaromatic nucleophilic substitution reactions in cycloheptatrienide pyridinium and phosphonium zwitterions with initial formation of a cycloheptatetraene intermediate are explored. The mechanism was supported by quantum chemical calculations, first-order reaction kinetics, and high-resolution mass spectrometry. The pyridinium zwitterion exhibited weak antiaromaticity, whereas the intermediate displayed Möbius aromaticity, as evidenced by nuclear independent chemical shift values and the shape of its HOMO. This study represents the eighth confirmed instance of a Möbius-aromatic organic species in its ground state.
Collapse
Affiliation(s)
- Alena D Sokolova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Dmitry N Platonov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Alexander Yu Belyy
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Rinat F Salikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Kirill S Erokhin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Yury V Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| |
Collapse
|
4
|
Shi Y, Li C, Di J, Xue Y, Jia Y, Duan J, Hu X, Tian Y, Li Y, Sun C, Zhang N, Xiong Y, Jin T, Chen P. Polycationic Open-Shell Cyclophanes: Synthesis of Electron-Rich Chiral Macrocycles, and Redox-Dependent Electronic States. Angew Chem Int Ed Engl 2024; 63:e202402800. [PMID: 38411404 DOI: 10.1002/anie.202402800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
π-Conjugated chiral nanorings with intriguing electronic structures and chiroptical properties have attracted considerable interests in synthetic chemistry and materials science. We present the design principles to access new chiral macrocycles (1 and 2) that are essentially built on the key components of main-group electron-donating carbazolyl moieties or the π-expanded aza[7]helicenes. Both macrocycles show the unique molecular conformations with a (quasi) figure-of-eight topology as a result of the conjugation patterns of 2,2',7,7'-spirobifluorenyl in 1 and triarylamine-coupled aza[7]helicene-based building blocks in 2. This electronic nature of redox-active, carbazole-rich backbones enabled these macrocycles to be readily oxidized chemically and electrochemically, leading to the sequential production of a series of positively charged polycationic open-shell cyclophanes. Their redox-dependent electronic states of the resulting multispin polyradicals have been characterized by VT-ESR, UV/Vis-NIR absorption and spectroelectrochemical measurements. The singlet (ΔES-T=-1.29 kcal mol-1) and a nearly degenerate singlet-triplet ground state (ΔES-T(calcd)=-0.15 kcal mol-1 and ΔES-T(exp)=0.01 kcal mol-1) were proved for diradical dications 12+2⋅ and 22+2⋅, respectively. Our work provides an experimental proof for the construction of electron-donating new chiral nanorings, and more importantly for highly charged polyradicals with potential applications in chirospintronics and organic conductors.
Collapse
Affiliation(s)
- Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Jiaqi Di
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Yuting Xue
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Yawei Jia
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Jiaxian Duan
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Xiaoyu Hu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Yu Tian
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Yanqiu Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Cuiping Sun
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| | - Niu Zhang
- Analysis and Testing Centre, Beijing Institute of Technology, 102488, Beijing, China
| | - Yan Xiong
- Analysis and Testing Centre, Beijing Institute of Technology, 102488, Beijing, China
| | - Tianyun Jin
- Center of Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography University of California, San Diego La Jolla, 92093, USA
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Medical Molecule Science, Pharmaceutical Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 102488, China
| |
Collapse
|
5
|
Chen JF, Gao QX, Yao H, Shi B, Zhang YM, Wei TB, Lin Q. Recent advances in circularly polarized luminescence of planar chiral organic compounds. Chem Commun (Camb) 2024; 60:6728-6740. [PMID: 38884278 DOI: 10.1039/d4cc01698j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Circularly polarized luminescence (CPL), as an important chiroptical phenomenon, can not only directly characterize excited-state structural information about chiroptical materials but also has great application prospects in 3D optical displays, information storage, biological probes, CPL lasers and so forth. Recently, chiral organic small molecules with CPL have attracted a lot of research interest because of their excellent luminescence efficiency, clear molecular structures, unique flexibility and easy functionalization. Planar chiral organic compounds make up an important class of chiral organic small molecular materials and often have rigid macrocyclic skeletons, which have important research value in the field of chiral supramolecular chemistry (e.g., chiral self-assembly and chiral host-guest chemistry). Therefore, research into planar chiral organic compounds has become a hotspot for CPL. It is time to summarize the recent developments in CPL-active compounds based on planar chirality. In this feature article, we summarize various types of CPL-active compounds based on planar chirality. Meanwhile, we overview recent research in the field of planar chiral CPL-active compounds in terms of optoelectronic devices, asymmetric catalysis, and chiroptical sensing. Finally, we discuss their future research prospects in the field of CPL-active materials. We hope that this review will be helpful to research work related to planar chiral luminescent materials and promote the development of chiral macrocyclic chemistry.
Collapse
Affiliation(s)
- Jin-Fa Chen
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - Qing-Xiu Gao
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - Hong Yao
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - Bingbing Shi
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - You-Ming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| | - Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
| |
Collapse
|
6
|
Dong S, Han Y, Tong Z, Wang J, Zhang Y, Li A, Gopalakrishna TY, Tian H, Chi C. Facile synthesis and characterization of aza-bridged all-benzenoid quinoidal figure-eight and cage molecules. Chem Sci 2024; 15:9087-9095. [PMID: 38903229 PMCID: PMC11186326 DOI: 10.1039/d3sc02707d] [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: 05/29/2023] [Accepted: 04/27/2024] [Indexed: 06/22/2024] Open
Abstract
Synthesis of conjugated compounds with unusual shape-persistent structures remains a challenge. Herein, utilizing thermodynamically reversible intermolecular Friedel-Crafts alkylation, a dynamic covalent chemistry (DCC) reaction, we facilely synthesized a figure-eight shaped macrocycle FEM and cage molecules CATPA/CACz. X-ray crystallographic analysis confirmed the chemical geometries of tetracation FEM4+(PF6 -)4 and hexacation CACz6+(SbF6 -)6. FEM and CATPA displayed higher photoluminescence quantum yield in solid states compared to that in solution, whereas CACz gave the reverse result. DFT calculations showed that fluorescence-related frontier molecular orbital profiles are mainly localized on their arms consisting of a p-quinodimethane (p-QDM) unit and two benzene rings of triphenylamine or carbazole. Owing to their space-confined structures, variable-temperature 1H NMR measurements showed that FEM, CATPA and FEM4+ have intramolecular restricted motion of phenyl rings on their chromophore arms. Accordingly, FEM and CATPA with flexible triphenylamine subunits displayed aggregation-induced emission behavior (AIE), whereas CACz with a rigid carbazole subunits structure showed no AIE behavior.
Collapse
Affiliation(s)
- Shaoqiang Dong
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin University Tianjin 300072 China
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Yi Han
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Zekun Tong
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin University Tianjin 300072 China
| | - Jinfeng Wang
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin University Tianjin 300072 China
| | - Yishan Zhang
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin University Tianjin 300072 China
| | - Aisen Li
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin University Tianjin 300072 China
| | | | - Hongkun Tian
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
| | - Chunyan Chi
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| |
Collapse
|
7
|
Xu Y, Leung MY, Yan L, Chen Z, Li P, Cheng YH, Chan MHY, Yam VWW. Synthesis, Characterization, and Resistive Memory Behaviors of Highly Strained Cyclometalated Platinum(II) Nanohoops. J Am Chem Soc 2024; 146:13226-13235. [PMID: 38700957 DOI: 10.1021/jacs.4c01243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Strained carbon nanohoops exhibit attractive photophysical properties due to their unique π-conjugated structure. However, incorporation of such nanohoops into the pincer ligand of metal complexes has rarely been explored. Herein, a new family of highly strained cyclometalated platinum(II) nanohoops has been synthesized and characterized. Strain-promoted C-H bond activation has been observed during the metal coordination process, and Hückel-Möbius topology and random-columnar packing in the solid state are found. Transient absorption spectroscopy revealed the size-dependent excited state properties of the nanohoops. Moreover, the nanohoops have been successfully employed as active materials in the fabrication of solution-processable resistive memory devices, including the use of the smallest platinum(II) nanohoop for the fabrication of a binary memory, with low switching threshold voltages of ca. 1.5 V, high ON/OFF current ratios, and good stability. These results demonstrate that strain incorporation into the structure can be an effective strategy to fundamentally fine-tune the reactivity, optoelectronic, and resistive memory properties.
Collapse
Affiliation(s)
- Youzhi Xu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Ming-Yi Leung
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Liangliang Yan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Ziyong Chen
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Panpan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Yat-Hin Cheng
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Michael Ho-Yeung Chan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Vivian Wing-Wah Yam
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| |
Collapse
|
8
|
Aguiar C, Dattani N, Camps I. Electronic and structural properties of Möbius boron-nitride and carbon nanobelts. DISCOVER NANO 2024; 19:63. [PMID: 38589649 PMCID: PMC11001837 DOI: 10.1186/s11671-024-03967-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/24/2024] [Indexed: 04/10/2024]
Abstract
For the development of nanofilters and nanosensors, we wish to know the impact of size on their geometric, electronic, and thermal stabilities. Using the semiempirical tight binding method as implemented in the xTB program, we characterized Möbius boron-nitride and carbon-based nanobelts with different sizes and compared them to each other and to normal nanobelts. The calculated properties include the infrared spectra, the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), the energy gap, the chemical potential, and the molecular hardness. The agreement between the peak positions from theoretical infrared spectra compared with experimental ones for all systems validates the methodology that we used. Our findings show that for the boron-nitride-based nanobelts, the calculated properties have an opposite monotonic relationship with the size of the systems, whereas for the carbon-based nanobelts, the properties show the same monotonic relationship for both types of nanobelts. Also, the torsion presented on the Möbius nanobelts, in the case of boron-nitride, induced an inhomogeneous surface distribution for the HOMO orbitals. High-temperature molecular dynamics also allowed us to contrast carbon-based systems with boron-nitride systems at various temperatures. In all cases, the properties vary with the increase in size of the nanobelts, indicating that it is possible to choose the desired values by changing the size and type of the systems. This work has many implications for future studies, for example our results show that carbon-based nanobelts did not break as we increased the temperature, whereas boron-nitride nanobelts had a rupture temperature that varied with their size; this is a meaningful result that can be tested when the use of more accurate simulation methods become practical for such systems in the future.
Collapse
Affiliation(s)
- C Aguiar
- Laboratório de Modelagem Computacional - LaModel, Instituto de Ciências Exatas - ICEx, Universidade Federal de Alfenas - UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - N Dattani
- HPQC College, Waterloo, Canada.
- HPQC Labs, Waterloo, Canada.
| | - I Camps
- Laboratório de Modelagem Computacional - LaModel, Instituto de Ciências Exatas - ICEx, Universidade Federal de Alfenas - UNIFAL-MG, Alfenas, Minas Gerais, Brazil.
- HPQC Labs, Waterloo, Canada.
| |
Collapse
|
9
|
Yang J, Xie ZY, Ye YJ, Ye SB, Wang YB, Wang WT, Qian PC, Song RJ, Sun Q, Ye LW, Li L. Ir/Zn-cocatalyzed chemo- and atroposelective [2+2+2] cycloaddition for construction of C─N axially chiral indoles and pyrroles. SCIENCE ADVANCES 2023; 9:eadk1704. [PMID: 38117883 PMCID: PMC10732529 DOI: 10.1126/sciadv.adk1704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/20/2023] [Indexed: 12/22/2023]
Abstract
Here, an Ir/Zn-cocatalyzed atroposelective [2+2+2] cycloaddition of 1,6-diynes and ynamines was developed, forging various functionalized C─N axially chiral indoles and pyrroles in generally good to excellent yields (up to 99%), excellent chemoselectivities, and high enantioselectivities (up to 98% enantiomeric excess) with wide substrate scope. This cocatalyzed strategy not only provided an alternative promising and reliable way for asymmetric alkyne [2+2+2] cyclotrimerization in an easy handle but also settled the issues of previous [Rh(COD)2]BF4-catalyzed system on the construction of C─N axial chirality such as complex operations, limited substrate scope, and low efficiency. In addition, control experiments and theoretical calculations disclosed that Zn(OTf)2 markedly reduced the barrier of migration insertion to significantly increase reaction efficiency, which was distinctly different from previous work on the Lewis acid for improving reaction yield through accelerating oxidative addition and reductive elimination.
Collapse
Affiliation(s)
- Jian Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhong-Yang Xie
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yu-Jie Ye
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Sheng-Bing Ye
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yi-Bo Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wen-Tao Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Peng-Cheng Qian
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Wenzhou Key Laboratory of Technology and Application of Environmental Functional Materials, Institute of New Materials and Industry Technology, Wenzhou University, Wenzhou 325000, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Wenzhou Key Laboratory of Technology and Application of Environmental Functional Materials, Institute of New Materials and Industry Technology, Wenzhou University, Wenzhou 325000, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| |
Collapse
|
10
|
Aguiar C, Dattani N, Camps I. Möbius carbon nanobelts interacting with heavy metal nanoclusters. J Mol Model 2023; 29:277. [PMID: 37561216 DOI: 10.1007/s00894-023-05669-3] [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: 04/22/2023] [Accepted: 07/15/2023] [Indexed: 08/11/2023]
Abstract
CONTEXT The interaction between carbon nanostructures and heavy metal clusters is of great interest due to their potential applications as sensors and filters to remove the former from environment. In this work, we investigated the interaction between two types of carbon nanobelts (Möbius-type nanobelt and simple nanobelt) and nickel, cadmium, and lead nanoclusters. Our aim was to determine how both systems interact which would shed light on the potential applications of the carbon nanostructures as pollutant removal and detecting devices. METHODS To investigate the interaction between carbon nanostructures and heavy metal nanoclusters, we utilized the semiempirical tight binding framework provided by xTB software with the GFN2-xTB Hamiltonian. We performed calculations to determine the best interaction site, lowest energy geometries, complexes stability (using molecular dynamics at 298K), binding energy, and electronic properties. We also carried out a topological study to investigate the nature and intensity of the bonds formed between the metal nanoclusters and the nanobelts. Our results demonstrate that heavy metal nanoclusters have a favorable binding affinity towards both nanobelts, with the Möbius-type nanobelt having a stronger interaction. Additionally, our calculations reveal that the nickel nanocluster has the lowest binding energy, displaying the greatest charge transfer with the nanobelts, which was nearly twice that of the cadmium and lead nanoclusters. Our combined results lead to the conclusion that the nickel nanoclusters are chemisorbed, whereas cadmium and lead nanoclusters are physisorbed in both nanobelts. These findings have significant implications for the development of sensor and filtering devices based on carbon and heavy metal nanoclusters.
Collapse
Affiliation(s)
- C Aguiar
- Laboratório de Modelagem Computacional -LaModel, Instituto de Ciências Exatas - ICEx, Universidade Federal de Alfenas - UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - N Dattani
- HPQC College, Waterloo, Canada.
- HPQC Labs, Waterloo, Canada.
| | - I Camps
- Laboratório de Modelagem Computacional -LaModel, Instituto de Ciências Exatas - ICEx, Universidade Federal de Alfenas - UNIFAL-MG, Alfenas, Minas Gerais, Brazil.
- HPQC Labs, Waterloo, Canada.
| |
Collapse
|
11
|
Synthesis, structure, and host-guest chemistry of a pair of isomeric selenanthrene-bridged molecular cages. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
12
|
Terabayashi T, Kayahara E, Zhang Y, Mizuhata Y, Tokitoh N, Nishinaga T, Kato T, Yamago S. Synthesis of Twisted [n]Cycloparaphenylene by Alkene Insertion. Angew Chem Int Ed Engl 2023; 62:e202214960. [PMID: 36349975 DOI: 10.1002/anie.202214960] [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: 10/11/2022] [Indexed: 11/10/2022]
Abstract
Mono-alkene-inserted [n]cycloparaphenylenes 1 [(ene)-[n]CPP] with n=6, 8, and 10, mono-ortho-phenylene-inserted [6]CPP 2, and di-alkene-insertved [n]CPP 3 [(ene)2 -[n]CPP] with n=4, 6, and 8 were synthesized by fusing CPP precursors and alkene or ortho- phenylene groups through coupling reactions. Single-crystal X-ray diffraction analyses reveal that the strips formed by the π-surfaces of 1 and 2 exhibited a Möbius topology in the solid state. While the Möbius topology in the parent 1 and 2 in solution was lost due to the free rotation of the paraphenylene unit even at low temperatures, ene-[6]CPP 4 with eight 1-pyrrolyl groups preserved the Möbius topology even in solution. Despite a twist, 1 has in-plane conjugation and possesses a unique size dependence of the electronic properties: namely, the opposite size dependency of the HOMO-LUMO energy relative to conventional π-conjugated molecules.
Collapse
Affiliation(s)
| | - Eiichi Kayahara
- Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| | - Yichen Zhang
- Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| | | | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| | - Tohru Nishinaga
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Tatsuhisa Kato
- Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| |
Collapse
|
13
|
Chen Y, Jing B, Chang Z, Gong J. Luminescent Möbius Strip of a Flexible Halogen-Bonded Cocrystal Evolved from Ring and Helix. JACS AU 2022; 2:2686-2692. [PMID: 36590258 PMCID: PMC9795465 DOI: 10.1021/jacsau.2c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 06/17/2023]
Abstract
Luminescent Möbius strip microstructures have been created for the first time based on flexible organic single crystals via a template-free solution self-assembly. We herein demonstrated a rationally designed morphological evolution toward Möbius strips from rings and helixes. Our findings lay the foundation for the future construction of complex matters with predetermined morphologies and functions from crystal systems.
Collapse
Affiliation(s)
- Yifu Chen
- State
Key Laboratory of Chemical Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China
| | - Bo Jing
- State
Key Laboratory of Chemical Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China
| | - Zewei Chang
- State
Key Laboratory of Chemical Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China
| | - Junbo Gong
- State
Key Laboratory of Chemical Engineering, School of Chemical Engineering
and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China
| |
Collapse
|
14
|
Malinčík J, Gaikwad S, Mora‐Fuentes JP, Boillat M, Prescimone A, Häussinger D, Campaña AG, Šolomek T. Circularly Polarized Luminescence in a Möbius Helicene Carbon Nanohoop**. Angew Chem Int Ed Engl 2022; 61:e202208591. [PMID: 35856293 PMCID: PMC9543836 DOI: 10.1002/anie.202208591] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Indexed: 11/13/2022]
Abstract
We present the first helicene carbon nanoohop that integrates a [6]helicene into [7]cycloparaphenylene. The [6]helicene endows the helicene carbon nanohoop with chiroptical properties and configurational stability typical for higher helicenes, while the radially conjugated seven para‐phenylenes largely determine the optoelectronic properties. The structure of the helicene carbon nanoohop was unambiguously characterized by NMR, MS and X‐ray analysis that revealed that it possesses a topology of a Möbius strip in the solid state and in solution. The chirality transfers from the [6]helicene to the para‐phenylenes and leads to a pronounced circular dichroism and bright circularly polarized luminescence, which is affected by the structural topology of the nanohoop.
Collapse
Affiliation(s)
- Juraj Malinčík
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
- Prievidza Chemical Society M. Hodžu 10/16 971 01 Prievidza Slovakia
| | - Sudhakar Gaikwad
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
| | - Juan P. Mora‐Fuentes
- Department of Organic Chemistry University of Granada Avda Fuentenueva, s/n 18 071 Granada Spain
| | - Marc‐Aurèle Boillat
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
| | - Alessandro Prescimone
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
| | - Daniel Häussinger
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
| | - Araceli G. Campaña
- Department of Organic Chemistry University of Granada Avda Fuentenueva, s/n 18 071 Granada Spain
| | - Tomáš Šolomek
- Department of Chemistry University of Basel St. Johann's-Ring 19 4056 Basel Switzerland
- Department of Chemistry Biochemistry and Pharamaceutical Sciences University of Bern Freiestrasse 3 3012 Bern Switzerland
- Prievidza Chemical Society M. Hodžu 10/16 971 01 Prievidza Slovakia
| |
Collapse
|
15
|
Palomo L, Favereau L, Senthilkumar K, Stępień M, Casado J, Ramírez FJ. Simultaneous Detection of Circularly Polarized Luminescence and Raman Optical Activity in an Organic Molecular Lemniscate. Angew Chem Int Ed Engl 2022; 61:e202206976. [PMID: 35785514 PMCID: PMC9544083 DOI: 10.1002/anie.202206976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/07/2022]
Abstract
Circularly polarized luminescence (CPL) and Raman optical activity (ROA) were observed in a single spectroscopic experiment for a purely organic molecule, an event that had so far been limited to lanthanide‐based complexes. The present observation was achieved for [16]cycloparaphenylene lemniscate, a double macrocycle constrained by a rigid 9,9′‐bicarbazole subunit, which introduces a chirality source and allows the molecule to be resolved into two configurationally stable enantiomers. Distortion of oligophenylene loops in this lemniscular structure produces a large magnetic transition dipole moment while maintaining the π‐conjugation‐induced enhancement of the Raman signal, causing the appearance of the CPL/ROA couple. A two‐photon mechanism is proposed to explain the population of the lowest‐energy excited electronic state prior to the simultaneous emission‐scattering event.
Collapse
Affiliation(s)
- Luis Palomo
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
| | | | - Kabali Senthilkumar
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Marcin Stępień
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Juan Casado
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
| | - Francisco J. Ramírez
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
| |
Collapse
|
16
|
New paradigms in molecular nanocarbon science. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132907] [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]
|
17
|
Malinčík J, Gaikwad S, Mora-Fuentes JP, Boillat MA, Prescimone A, Häussinger D, Campaña AG, Šolomek T. Circularly Polarized Luminescence in a Möbius Helicene Carbon Nanohoop. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Juraj Malinčík
- University of Basel: Universitat Basel Department of Chemistry SWITZERLAND
| | - Sudhakar Gaikwad
- University of Basel: Universitat Basel Department of Chemistry SWITZERLAND
| | - Juan P. Mora-Fuentes
- University of Granada: Universidad de Granada Department of Organic Chemistry SPAIN
| | | | | | - Daniel Häussinger
- University of Basel: Universitat Basel Department of Chemistry SWITZERLAND
| | - Araceli G. Campaña
- University of Granada: Universidad de Granada Department of Organic Chemistry SPAIN
| | - Tomáš Šolomek
- University of Bern: Universitat Bern Department of Chemistry, Biochemistry and Pharmaceutical Sciences Freiestrasse 3 3012 Bern SWITZERLAND
| |
Collapse
|
18
|
Palomo L, Favereau L, Senthilkumar K, Stępień M, Casado J, Ramirez FJ. Simultaneous Detection of Circularly Polarized Luminescence and Raman Optical Activity in an Organic Molecular Lemniscate. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luis Palomo
- Universidad de Malaga Physical Chemistry SPAIN
| | - Ludovic Favereau
- Universite de Rennes 1 Institut des Sciences Chimiques de Rennes FRANCE
| | | | - Marcin Stępień
- Uniwersytet Wroclawski Wydzial Chemii Wydzial Chemii POLAND
| | - Juan Casado
- Universidad de Malaga Physical Chemistry SPAIN
| | | |
Collapse
|
19
|
The making of aromatic molecular Möbius belts. Chem 2022. [DOI: 10.1016/j.chempr.2022.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
20
|
Rodríguez-Rubio A, Savoini A, Modicom F, Butler P, Goldup SM. A Co-conformationally "Topologically" Chiral Catenane. J Am Chem Soc 2022; 144:11927-11932. [PMID: 35763555 PMCID: PMC9348828 DOI: 10.1021/jacs.2c02029] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Catenanes composed of two achiral rings that are oriented (Cnh symmetry) because of the sequence of atoms they contain are referred to as topologically chiral. Here, we present the synthesis of a highly enantioenriched catenane containing a related but overlooked "co-conformationally 'topologically' chiral" stereogenic unit, which arises when a bilaterally symmetric Cnv ring is desymmetrized by the position of an oriented macrocycle.
Collapse
Affiliation(s)
- Arnau Rodríguez-Rubio
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Andrea Savoini
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Florian Modicom
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Patrick Butler
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| | - Stephen M Goldup
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
| |
Collapse
|
21
|
Roy I, David AHG, Das PJ, Pe DJ, Stoddart JF. Fluorescent cyclophanes and their applications. Chem Soc Rev 2022; 51:5557-5605. [PMID: 35704949 DOI: 10.1039/d0cs00352b] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
With the serendipitous discovery of crown ethers by Pedersen more than half a century ago and the subsequent introduction of host-guest chemistry and supramolecular chemistry by Cram and Lehn, respectively, followed by the design and synthesis of wholly synthetic cyclophanes-in particular, fluorescent cyclophanes, having rich structural characteristics and functions-have been the focus of considerable research activity during the past few decades. Cyclophanes with remarkable emissive properties have been investigated continuously over the years and employed in numerous applications across the field of science and technology. In this Review, we feature the recent developments in the chemistry of fluorescent cyclophanes, along with their design and synthesis. Their host-guest chemistry and applications related to their structure and properties are highlighted.
Collapse
Affiliation(s)
- Indranil Roy
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
| | - Arthur H G David
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
| | - Partha Jyoti Das
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
| | - David J Pe
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA. .,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310021, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou, 311215, China
| |
Collapse
|
22
|
Wang L, Nagashima Y, Abekura M, Uekusa H, Konishi G, Tanaka K. Rhodium‐Catalyzed Intermolecular Cycloaromatization Route to Cycloparaphenylenes that Exhibit Aggregation‐Induced Emission. Chemistry 2022; 28:e202200064. [DOI: 10.1002/chem.202200064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 12/11/2022]
Affiliation(s)
- Li‐Hsiang Wang
- Department of Chemical Science and Engineering Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Masato Abekura
- Department of Chemistry Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Hidehiro Uekusa
- Department of Chemistry Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Gen‐ichi Konishi
- Department of Chemical Science and Engineering Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology Ookayama, Meguro-ku Tokyo 152-8550 Japan
| |
Collapse
|
23
|
Nogami J, Nagashima Y, Sugiyama H, Miyamoto K, Tanaka Y, Uekusa H, Muranaka A, Uchiyama M, Tanaka K. Synthesis of Cyclophenacene‐ and Chiral‐Type Cyclophenylene‐Naphthylene Belts. Angew Chem Int Ed Engl 2022; 61:e202200800. [DOI: 10.1002/anie.202200800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Juntaro Nogami
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| | | | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Hidehiro Uekusa
- Department of Chemistry Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| |
Collapse
|
24
|
Wang J, Shi H, Wang S, Zhang X, Fang P, Zhou Y, Zhuang G, Shao X, Du P. Tuning the (Chir)Optical Properties and Squeezing out the Inherent Chirality in Polyphenylene‐Locked Helical Carbon Nanorings. Chemistry 2022; 28:e202103828. [DOI: 10.1002/chem.202103828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Jinyi Wang
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Hong Shi
- Department of Chemical Physics CAS Key Laboratory of Urban Pollutant Conversion Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Shengda Wang
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Xinyu Zhang
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Pengwei Fang
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Yu Zhou
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Gui‐Lin Zhuang
- College of Chemical Engineering Zhejiang University of Technology 18, Chaowang Road Hangzhou Zhejiang Province 310032 P.R. China
| | - Xiang Shao
- Department of Chemical Physics CAS Key Laboratory of Urban Pollutant Conversion Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| | - Pingwu Du
- Hefei National Laboratory of Physical Science at the Microscale CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and Engineering iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) University of Science and Technology of China 96 Jinzhai Road Hefei Anhui Province 230026 P.R. China
| |
Collapse
|
25
|
Nogami J, Nagashima Y, Sugiyama H, Miyamoto K, Tanaka Y, Uekusa H, Muranaka A, Uchiyama M, Tanaka K. Synthesis of Cyclophenacene‐ and Chiral‐Type Cyclophenylene‐Naphthylene Belts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Juntaro Nogami
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| | | | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Hidehiro Uekusa
- Department of Chemistry Tokyo Institute of Technology O-okayama Meguro-ku Tokyo 152-8550 Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako, Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo 152-8550 Japan
| |
Collapse
|
26
|
Kohrs D, Becker J, Wegner HA. A Modular Synthesis of Substituted Cycloparaphenylenes. Chemistry 2022; 28:e202104239. [PMID: 35001444 PMCID: PMC9302675 DOI: 10.1002/chem.202104239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 11/20/2022]
Abstract
Herein, we report a modular synthesis providing access to substituted cycloparaphenylenes (CPPs) of different sizes. A key synthon introducing two geminal ester units was efficiently prepared by [2+2+2] cycloaddition. This building block can be conveniently converted to macrocyclic precursors controlling the ring size of the final CPP. Efficient reductive aromatization through single‐electron transfer provided the substituted nanohoops in a straightforward manner. The tBu ester substitution pattern enables a tube‐like arrangement in the solid‐state governed by van der Waals interactions that exhibits one of the tightest packings of CPPs in tube direction, thus opening new avenues in the crystal design of CPPs.
Collapse
Affiliation(s)
- Daniel Kohrs
- Institute of Organic Chemistry Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Jonathan Becker
- Institute of Inorganic Chemistry Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Hermann A. Wegner
- Institute of Organic Chemistry Justus Liebig University Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Materials Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| |
Collapse
|
27
|
Ruffin H, Fihey A, Boitrel B, Le Gac S. Möbius Zn
II
‐Hexaphyrins Bearing a Chiral Coordinating Arm: A Chiroptical Switch Featuring P/M Twist Inversion Controlled by Achiral Effectors. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hervé Ruffin
- Univ Rennes CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Arnaud Fihey
- Univ Rennes CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Bernard Boitrel
- Univ Rennes CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Stéphane Le Gac
- Univ Rennes CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| |
Collapse
|
28
|
Volkmann J, Kohrs D, Bernt F, Wegner HA. Synthesis of a Substituted [10]Cycloparaphenylene through [2+2+2] Cycloaddition. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jannis Volkmann
- Institute of Organic Chemistry Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Material Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Daniel Kohrs
- Institute of Organic Chemistry Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Material Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Felix Bernt
- Institute of Organic Chemistry Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Material Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Hermann A. Wegner
- Institute of Organic Chemistry Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Center for Material Research (ZfM/LaMa) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| |
Collapse
|
29
|
Tanaka T, Kise K. Non-Planar Polycyclic Aromatic Molecules Including Heterole Units. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
30
|
Kohrs D, Volkmann J, Wegner HA. Cycloparaphenylenes via [2+2+2] Cycloaddition. Chem Commun (Camb) 2022; 58:7483-7494. [DOI: 10.1039/d2cc02289c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The [2+2+2] cycloaddition (CA) offers great potential as an atom economic method for the formation of substituted aromatic rings. In this article, we highlight the application of this versatile method...
Collapse
|
31
|
Yao B, Liu X, Guo T, Sun H, Wang W. Molecular Möbius Strips: Twist for A Bright Future. Org Chem Front 2022. [DOI: 10.1039/d2qo00829g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Attributed to their unique structural features and associated intriguing properties, molecular Möbius strips have attracted considerable attention. However, the precise synthesis of such attractive molecules remains a great challenge. Recently,...
Collapse
|
32
|
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
|
33
|
Ruffin H, Fihey A, Boitrel B, Le Gac S. Möbius Zn II -Hexaphyrins Bearing a Chiral Coordinating Arm: A Chiroptical Switch Featuring P/M Twist Inversion Controlled by Achiral Effectors. Angew Chem Int Ed Engl 2021; 61:e202113844. [PMID: 34813138 DOI: 10.1002/anie.202113844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 11/07/2022]
Abstract
By their conformational flexibility, Möbius aromatic hexaphyrins provide a dynamic chirality attractive to develop stimuli responsive systems such as chiroptical switches. A regular [28]hexaphyrin has been equipped with a chiral coordinating arm to achieve transfer of chirality from a fix stereogenic element to the dynamic Möbius one. The arm allows straightforward formation of labile monometallic ZnII complexes with an exogenous ligand, either a carboxylato or an amino with opposite inwards/outwards orientations relative to the Möbius ring. As a corollary, the chiral coordinating arm is constrained over the ring or laterally, inducing opposite P and M Möbius configurations with unprecedented high stereoselectivity (diast. excess greater than 95 %). By tuning the transfer of chirality, these achiral effectors generate electronic circular dichroism spectra with bisignate Cotton effect of opposite signs. Switching between distinct chiroptical states was ultimately achieved in mild conditions owing to ligand exchange, with high robustness (10 cycles).
Collapse
Affiliation(s)
- Hervé Ruffin
- Univ Rennes, CNRS, ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Arnaud Fihey
- Univ Rennes, CNRS, ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Bernard Boitrel
- Univ Rennes, CNRS, ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| | - Stéphane Le Gac
- Univ Rennes, CNRS, ISCR, Institut des Sciences Chimiques de Rennes)-UMR 6226, 35000, Rennes, France
| |
Collapse
|
34
|
Hasegawa M, Ishida Y, Sasaki H, Ishioka S, Usui K, Hara N, Kitahara M, Imai Y, Mazaki Y. Helical Oligophenylene Linked with [2.2]Paracyclophane: Stereogenic π-Conjugated Dye for Highly Emissive Chiroptical Properties. Chemistry 2021; 27:16225-16231. [PMID: 34549839 DOI: 10.1002/chem.202103158] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Indexed: 12/18/2022]
Abstract
A stereogenic π-system based on dimer (2) and trimer (3) of [2.2]paracyclophane (PC) and biphenyl was prepared and its structural, photophysical, and chiroptical properties were investigated. X-ray analysis revealed that the quaterphenyl moieties in 2 adopt a double helical structure anchoring [2.2]PC from both sides. Furthermore, 3 forms a isosceles triangle structure with a large chiral cavity. A homodesmotic reaction using DFT calculations revealed that 2 has a larger strain energy than 3 owing to its highly twisted phenylene linkers. Electronic and circular dichroic (CD) spectra were recorded in CH2 Cl2 solution. The spectra of both 2 and 3 are similar, and their longest absorption band accompanying a remarkable Cotton effect is attributed to the transition from HOMO to LUMO, which is delocalized to the quaterphenyl moiety. These compounds exhibit fairly high fluorescence quantum yields (ϕ=0.70-0.83) and moderate dissymmetry factor (|gCPL |=1.6×10-3 ) in circularly polarized luminescence (CPL).
Collapse
Affiliation(s)
- Masashi Hasegawa
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Yuki Ishida
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Hiroaki Sasaki
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Sumire Ishioka
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| | - Kazuteru Usui
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan
| | - Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Maho Kitahara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Yasuhiro Mazaki
- Graduate School of Science, Kitasato University, Sagamihara, Kanagawa, 252-0373, Japan
| |
Collapse
|
35
|
Fan W, Matsuno T, Han Y, Wang X, Zhou Q, Isobe H, Wu J. Synthesis and Chiral Resolution of Twisted Carbon Nanobelts. J Am Chem Soc 2021; 143:15924-15929. [PMID: 34550688 DOI: 10.1021/jacs.1c08468] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Twisted carbon nanobelts could display persistent chirality, which is desirable for material applications, but their synthesis is very challenging. Herein, we report the successful synthesis and chiral resolution of such a kind of molecules (1-H and 1) with a figure-eight configuration. 1-H was synthesized first by macrocyclization through Suzuki coupling reaction followed by benzannulation via Bi(OTf)3-mediated cyclization reaction of vinyl ether. Oxidative dehydrogenation of 1-H gave the fully π-conjugated 1. Their twisted structures were confirmed by X-ray crystallographic analysis and calculations, and they can be resolved by chiral high-performance liquid chromatography. The isolated enantiomers showed persistent chiroptical properties according to the circular dichroism measurements, with moderate |gabs| values (0.0016 for 1-H and 0.005-0.007 for 1). Their photophysical properties were also briefly studied.
Collapse
Affiliation(s)
- Wei Fan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Taisuke Matsuno
- Department of Chemistry, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yi Han
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Xuhui Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Qifeng Zhou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Hiroyuki Isobe
- Department of Chemistry, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| |
Collapse
|
36
|
Hasegawa M, Nojima Y, Mazaki Y. Circularly Polarized Luminescence in Chiral π‐Conjugated Macrocycles. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100162] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masashi Hasegawa
- Department of Chemistry Graduate School of Science Kitasato University Sagamihara, Kanagawa 252-0373 Japan
| | - Yuki Nojima
- Department of Chemistry Graduate School of Science Kitasato University Sagamihara, Kanagawa 252-0373 Japan
| | - Yasuhiro Mazaki
- Department of Chemistry Graduate School of Science Kitasato University Sagamihara, Kanagawa 252-0373 Japan
| |
Collapse
|
37
|
Ratovelomanana-Vidal V, Matton P, Huvelle S, Haddad M, Phansavath P. Recent Progress in Metal-Catalyzed [2+2+2] Cycloaddition Reactions. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1719831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractMetal-catalyzed [2+2+2] cycloaddition is a powerful tool that allows rapid construction of functionalized 6-membered carbo- and heterocycles in a single step through an atom-economical process with high functional group tolerance. The reaction is usually regio- and chemoselective although selectivity issues can still be challenging for intermolecular reactions involving the cross-[2+2+2] cycloaddition of two or three different alkynes and various strategies have been developed to attain high selectivities. Furthermore, enantioselective [2+2+2] cycloaddition is an efficient means to create central, axial, and planar chirality and a variety of chiral organometallic complexes can be used for asymmetric transition-metal-catalyzed inter- and intramolecular reactions. This review summarizes the recent advances in the field of [2+2+2] cycloaddition.1 Introduction2 Formation of Carbocycles2.1 Intermolecular Reactions2.1.1 Cyclotrimerization of Alkynes2.1.2 [2+2+2] Cycloaddition of Two Different Alkynes2.1.3 [2+2+2] Cycloaddition of Alkynes/Alkenes with Alkenes/Enamides2.2 Partially Intramolecular [2+2+2] Cycloaddition Reactions2.2.1 Rhodium-Catalyzed [2+2+2] Cycloaddition2.2.2 Molybdenum-Catalyzed [2+2+2] Cycloaddition2.2.3 Cobalt-Catalyzed [2+2+2] Cycloaddition2.2.4 Ruthenium-Catalyzed [2+2+2] Cycloaddition2.2.5 Other Metal-Catalyzed [2+2+2] Cycloaddition2.3 Totally Intramolecular [2+2+2] Cycloaddition Reactions3 Formation of Heterocycles3.1 Cycloaddition of Alkynes with Nitriles3.2 Cycloaddition of 1,6-Diynes with Cyanamides3.3 Cycloaddition of 1,6-Diynes with Selenocyanates3.4 Cycloaddition of Imines with Allenes or Alkenes3.5 Cycloaddition of (Thio)Cyanates and Isocyanates3.6 Cycloaddition of 1,3,5-Triazines with Allenes3.7 Cycloaddition of Aldehydes with Enynes or Allenes/Alkenes3.8 Totally Intramolecular [2+2+2] Cycloaddition Reactions4 Conclusion
Collapse
|
38
|
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
|
39
|
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
|
40
|
Zhang F, Du X, Zhang D, Wang Y, Lu H, Chen C. A Green Fluorescent Nitrogen‐Doped Aromatic Belt Containing a [6]Cycloparaphenylene Skeleton. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fan Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Xu‐Sheng Du
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100084 China
| | - Da‐Wei Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100084 China
| | - Yin‐Feng Wang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100084 China
| | - Hai‐Yan Lu
- University of Chinese Academy of Sciences Beijing 100084 China
| | - Chuan‐Feng Chen
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100084 China
| |
Collapse
|
41
|
Wassy D, Hermann M, Wössner JS, Frédéric L, Pieters G, Esser B. Enantiopure nanohoops through racemic resolution of diketo[ n]CPPs by chiral derivatization as precursors to DBP[ n]CPPs. Chem Sci 2021; 12:10150-10158. [PMID: 34377404 PMCID: PMC8336472 DOI: 10.1039/d1sc02718b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/19/2021] [Indexed: 12/21/2022] Open
Abstract
Strained conjugated nanohoops are attractive synthetic targets due to the bending of their π-system, which leads to intriguing optoelectronic properties, among others. By incorporating non-mirror-symmetric aromatic panels, chiral nanohoops can be obtained. We herein present a strategy to enantiopure nanohoops by racemic resolution through chiral derivatization of diketone-embedded hoops. The resulting diketo[n]CPPs (n = 6, 7) contain two stereogenic carbon atoms each and possess high fluorescence quantum yields paired with circularly polarized luminescence. These are versatile precursors to chiral dibenzo[a,e]pentalene-based nanohoops DBP[n]CPPs with antiaromatic character and ambipolar electrochemical behavior. Due to their strained structures the DBP[n]CPPs do not racemize at room temperature, which is supported by high calculated isomerization barriers. X-ray crystallographic investigations on the DBP[n]CPPs and their precursors as well as DFT calculations provide insight into the build-up of strain energy during the synthetic transformations. Racemic resolution of diketone-embedded cycloparaphenylenes by derivatization with a chiral auxiliary provides scalable access to enantiopure hoops with chiroptical properties.![]()
Collapse
Affiliation(s)
- Daniel Wassy
- Institute for Organic Chemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany https://www.esser-lab.uni-freiburg.de
| | - Mathias Hermann
- Institute for Organic Chemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany https://www.esser-lab.uni-freiburg.de
| | - Jan S Wössner
- Institute for Organic Chemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany https://www.esser-lab.uni-freiburg.de
| | - Lucas Frédéric
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM 91191 Gif-sur-Yvette France
| | - Grégory Pieters
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM 91191 Gif-sur-Yvette France
| | - Birgit Esser
- Institute for Organic Chemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany https://www.esser-lab.uni-freiburg.de.,Freiburg Materials Research Center, University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
| |
Collapse
|
42
|
Mirzaei S, Castro E, Hernández Sánchez R. Conjugated Molecular Nanotubes. Chemistry 2021; 27:8642-8655. [PMID: 33780560 DOI: 10.1002/chem.202005408] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Indexed: 01/09/2023]
Abstract
Molecular compounds with permanent tubular architectures displaying radial π-conjugation are exceedingly rare. Their radial and axial delocalization presents them with unique optical and electronic properties, such as remarkable tuning of their Stokes shifts, and redox switching between global and local aromaticity. Although these tubular compounds display large internal void spaces, these attributes have not been extensively explored, thus presenting future opportunities in the development of materials. By using cutting-edge synthetic methodologies to bend aromatic surfaces, large opportunities in synthesis, property discovery, and applications are expected in new members of this family of conjugated molecular nanotubes.
Collapse
Affiliation(s)
- Saber Mirzaei
- Department of Chemistry, Dietrich School of Arts & Sciences, University of Pittsburgh, 219 Parkman Ave., Pittsburgh, PA 15260, USA
| | - Edison Castro
- Department of Chemistry, Dietrich School of Arts & Sciences, University of Pittsburgh, 219 Parkman Ave., Pittsburgh, PA 15260, USA
| | - Raúl Hernández Sánchez
- Department of Chemistry, Dietrich School of Arts & Sciences, University of Pittsburgh, 219 Parkman Ave., Pittsburgh, PA 15260, USA
| |
Collapse
|
43
|
Zhang F, Du XS, Zhang DW, Wang YF, Lu HY, Chen CF. A Green Fluorescent Nitrogen-Doped Aromatic Belt Containing a [6]Cycloparaphenylene Skeleton. Angew Chem Int Ed Engl 2021; 60:15291-15295. [PMID: 33955656 DOI: 10.1002/anie.202104259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Indexed: 12/23/2022]
Abstract
The design and synthesis of nitrogen-doped aromatic belts with conjugated structures still remain a challenge. Here, we report the first nitrogen-doped aromatic belt with a [6]cycloparaphenylene skeleton, which is conveniently synthesized from the easily available calix[3]carbazole. The aromatic belt has a rigid conjugated structure and deep cavity, and it can encapsulate one dichloromethane both in solution and in the solid state. Interestingly, the aromatic belt shows strong green fluorescence with a quantum yield of 0.39 and exhibits a narrow HOMO-LUMO energy gap of 2.02 eV. The belt-shaped conjugated structure composed of three carbazole subunits has specific optoelectronic properties that will promote wide applications in supramolecular chemistry and materials science.
Collapse
Affiliation(s)
- Fan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xu-Sheng Du
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100084, China
| | - Da-Wei Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100084, China
| | - Yin-Feng Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100084, China
| | - Hai-Yan Lu
- University of Chinese Academy of Sciences, Beijing, 100084, China
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100084, China
| |
Collapse
|
44
|
Bergman HM, Kiel GR, Handford RC, Liu Y, Tilley TD. Scalable, Divergent Synthesis of a High Aspect Ratio Carbon Nanobelt. J Am Chem Soc 2021; 143:8619-8624. [PMID: 34086453 DOI: 10.1021/jacs.1c04037] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Carbon nanobelts are molecules of high fundamental and technological interest due to their structural similarity to carbon nanotubes, of which they are molecular cutouts. Despite this attention, synthetic accessibility is a major obstacle, such that the few known strategies offer limited structural diversity, functionality, and scalability. To address this bottleneck, we have developed a new strategy that utilizes highly fused monomer units constructed via a site-selective [2 + 2 + 2] cycloaddition and a high-yielding zirconocene-mediated macrocyclization to achieve the synthesis of a new carbon nanobelt on large scale with the introduction of functional handles in the penultimate step. This nanobelt represents a diagonal cross section of an armchair carbon nanotube and consequently has a longitudinally extended structure with an aspect ratio of 1.6, the highest of any reported nanobelt. This elongated structure promotes solid-state packing into aligned columns that mimic the parent carbon nanotube and facilitates unprecedented host-guest chemistry with oligo-arylene guests in nonpolar solvents.
Collapse
Affiliation(s)
- Harrison M Bergman
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Gavin R Kiel
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Rex C Handford
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Yi Liu
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - T Don Tilley
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| |
Collapse
|
45
|
Nogami J, Nagashima Y, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Asymmetric synthesis, structures, and chiroptical properties of helical cycloparaphenylenes. Chem Sci 2021; 12:7858-7865. [PMID: 34168839 PMCID: PMC8188516 DOI: 10.1039/d1sc00861g] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/25/2021] [Indexed: 12/19/2022] Open
Abstract
Planar chiral carbon nanorings and nanobelts (CNRs and CNBs), the sidewall segment molecules of chiral-type carbon nanotubes (CNTs), have attracted attention owing to their characteristic chiroptical properties. From the appropriate CNTs, axially or planar chiral CNRs and CNBs have been designed and synthesized, but multiply helical sidewall segments were almost unexplored due to the difficulty in simultaneous control of multiple chiralities. In this article, we have succeeded in the perfectly diastereo- and enantiocontrolled catalytic synthesis of a cycloparaphenylene with four helical and two planar chiralities showing good chiroptical responses as chiral organic molecules. The perfectly stereocontrolled multiply helical structure was confirmed by a single-crystal X-ray diffraction analysis. The experimental and theoretical studies established the importance of the highly symmetric multiply helical structure in the cylindrical axis in obtaining good chiroptical responses.
Collapse
Affiliation(s)
- Juntaro Nogami
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Kazunori Miyamoto
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN 2-1 Hirosawa, Wako Saitama351-0198 Japan
| | - Atsuya Muranaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Masanobu Uchiyama
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN 2-1 Hirosawa, Wako Saitama351-0198 Japan
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| |
Collapse
|
46
|
Qiu ZL, Chen D, Deng Z, Chu KS, Tan YZ, Zhu J. Isolation of a carbon nanohoop with Möbius topology. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9981-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
47
|
Guo QH, Qiu Y, Wang MX, Fraser Stoddart J. Aromatic hydrocarbon belts. Nat Chem 2021; 13:402-419. [DOI: 10.1038/s41557-021-00671-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 02/23/2021] [Indexed: 01/22/2023]
|
48
|
Hermann M, Wassy D, Kohn J, Seitz P, Betschart MU, Grimme S, Esser B. Chiral Dibenzopentalene‐Based Conjugated Nanohoops through Stereoselective Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016968] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mathias Hermann
- Institute for Organic Chemistry University of Freiburg Albertstr. 21 79104 Freiburg Germany
| | - Daniel Wassy
- Institute for Organic Chemistry University of Freiburg Albertstr. 21 79104 Freiburg Germany
| | - Julia Kohn
- Mulliken Center for Theoretical Chemistry University of Bonn Beringstr. 4 53115 Bonn Germany
| | - Philipp Seitz
- Institute for Organic Chemistry University of Freiburg Albertstr. 21 79104 Freiburg Germany
| | - Martin U. Betschart
- Institut für Pharmazeutische Wissenschaften University of Freiburg Albertstr. 25 79104 Freiburg Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry University of Bonn Beringstr. 4 53115 Bonn Germany
| | - Birgit Esser
- Institute for Organic Chemistry University of Freiburg Albertstr. 21 79104 Freiburg Germany
- Freiburg Materials Research Center University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
| |
Collapse
|
49
|
Hermann M, Wassy D, Kohn J, Seitz P, Betschart MU, Grimme S, Esser B. Chiral Dibenzopentalene-Based Conjugated Nanohoops through Stereoselective Synthesis. Angew Chem Int Ed Engl 2021; 60:10680-10689. [PMID: 33596338 PMCID: PMC8252646 DOI: 10.1002/anie.202016968] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/16/2021] [Indexed: 11/06/2022]
Abstract
Conjugated nanohoops allow to investigate the effect of radial conjugation and bending on the involved π-systems. They can possess unexpected optoelectronic properties and their radially oriented π-system makes them attractive for host-guest chemistry. Bending the π-subsystems can lead to chiral hoops. Herein, we report the stereoselective synthesis of two enantiomers of chiral conjugated nanohoops by incorporating dibenzo[a,e]pentalenes (DBPs), which are generated in the last synthetic step from enantiomerically pure diketone precursors. Owing to its bent shape, this diketone unit was used as the only bent precursor and novel "corner unit" in the synthesis of the hoops. The [6]DBP[4]Ph-hoops contain six antiaromatic DBP units and four bridging phenylene groups. The small HOMO-LUMO gap and ambipolar electrochemical character of the DBP units is reflected in the optoelectronic properties of the hoop. Electronic circular dichroism spectra and MD simulations showed that the chiral hoop did not racemize even when heated to 110 °C. Due to its large diameter, it was able to accommodate two C60 molecules, as binding studies indicate.
Collapse
Affiliation(s)
- Mathias Hermann
- Institute for Organic Chemistry, University of Freiburg, Albertstr. 21, 79104, Freiburg, Germany
| | - Daniel Wassy
- Institute for Organic Chemistry, University of Freiburg, Albertstr. 21, 79104, Freiburg, Germany
| | - Julia Kohn
- Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstr. 4, 53115, Bonn, Germany
| | - Philipp Seitz
- Institute for Organic Chemistry, University of Freiburg, Albertstr. 21, 79104, Freiburg, Germany
| | - Martin U Betschart
- Institut für Pharmazeutische Wissenschaften, University of Freiburg, Albertstr. 25, 79104, Freiburg, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstr. 4, 53115, Bonn, Germany
| | - Birgit Esser
- Institute for Organic Chemistry, University of Freiburg, Albertstr. 21, 79104, Freiburg, Germany.,Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, 79104, Freiburg, Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
| |
Collapse
|
50
|
Kawazoe R, Matsuo Y, Saito Y, Tanaka T. Stereochemistry of a Cyclic Epicatechin Trimer with
C
3
Symmetry Produced by Oxidative Coupling. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rina Kawazoe
- Graduate School of Biomedical Sciences Nagasaki University 1-14 Bunkyo-machi 852-8521 Nagasaki Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences Nagasaki University 1-14 Bunkyo-machi 852-8521 Nagasaki Japan
| | - Yoshinori Saito
- Graduate School of Biomedical Sciences Nagasaki University 1-14 Bunkyo-machi 852-8521 Nagasaki Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences Nagasaki University 1-14 Bunkyo-machi 852-8521 Nagasaki Japan
| |
Collapse
|