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Ye T, Li Y, Shi Y, Che Y, Leng B, Wang S, Xiao J. π-Expanded [6]Helicene-Containing Nanographenes: Synthesis, Structures, and Chiroptical Properties. Org Lett 2024; 26:7088-7093. [PMID: 39145660 DOI: 10.1021/acs.orglett.4c02273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
A family of chiral nanographenes bearing [6]helicene units has been synthesized via the classical Scholl reaction. Inserting the [6]helicene unit into the parent nanographene skeleton can result in different structural topologies and optoelectric properties. Moreover, the isolated enantiomers exhibit attractive chiroptical properties.
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Affiliation(s)
- Tongtong Ye
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yiming Li
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Yi Che
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Bihan Leng
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Sujuan Wang
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding 071002, P. R. China
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2
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Orozco-Ic M, Soriano-Agueda L, Escayola S, Sundholm D, Merino G, Matito E. Understanding Aromaticity in [5]Helicene-Bridged Cyclophanes: A Comprehensive Study. J Org Chem 2024; 89:2459-2466. [PMID: 38236016 DOI: 10.1021/acs.joc.3c02485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
This study explores the aromaticity of doubly [5]helicene-bridged (1,4)cyclophane and triply [5]helicene-bridged (1,3,5)cyclophane via calculations of the magnetic response and of electronic aromaticity indices. The primary objective is to assess the π-electron delocalization to determine whether they sustain global ring currents associated with π aromaticity. The molecules show local ring currents in the presence of an external magnetic field. The ring currents flow diatropically in the stacked six-membered rings and in the helicene arms. However, these π currents are not interconnected due to the discontinuity of the π delocalization at the C-C single bonds connecting the central six-membered rings to the helicene arms. Electronic indices suggest that the helicene-arm systems have significantly smaller electron delocalization than benzene. The reduction in the delocalization does not compromise their ability to exhibit ring currents in the presence of an external magnetic field. The analysis provides further evidence that the magnetic criteria yield a different degree of aromaticity for the helicene arms than obtained in the calculation of the electronic aromaticity indices. However, both approaches confirm that the studied molecules are not globally aromatic.
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Affiliation(s)
- Mesías Orozco-Ic
- Donostia International Physics Center (DIPC), Donostia, 20018 Euskadi, Spain
| | - Luis Soriano-Agueda
- Donostia International Physics Center (DIPC), Donostia, 20018 Euskadi, Spain
| | - Sílvia Escayola
- Donostia International Physics Center (DIPC), Donostia, 20018 Euskadi, Spain
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/Maria Aurèlia Capmany, 69, Girona, 17003 Catalonia, Spain
| | - Dage Sundholm
- Department of Chemistry, Faculty of Science, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, FIN-00014 Helsinki, Finland
| | - Gabriel Merino
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310 Mérida, Yuc., México
| | - Eduard Matito
- Donostia International Physics Center (DIPC), Donostia, 20018 Euskadi, Spain
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3
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Qi Z, Wang S, Ji B, Shang H, Ye T, Shi Y, Xiao J. Self-Assembly of Functionalized Twistarenes into Supramolecular Assemblies with Chiroptical Property and Photoconductive Behavior. Org Lett 2024; 26:781-785. [PMID: 38241637 DOI: 10.1021/acs.orglett.3c03854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
A pair of novel chiral 1-phenylethylamine-modified twistarenes (4 and 11; compound 4 = 9,14-di-tert-butyl-7,16-diphenyl-2-(1-phenylethyl)-1H-benzo[8',9']triphenyleno[2',3':6,7]fluoreno[2,1,9-def]isoquinoline-1,3(2H)-dione) have been synthesized and characterized, and how the solvent component affects the chirality transfer of their self-assembled processes is investigated in mixtures with THF and H2O. The ordered assembly of 11 exhibits circular dichroism response. In addition, both 11a and 11b display positive photoconducting behavior.
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Affiliation(s)
- Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Sujuan Wang
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Honglin Shang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei ProvinceHebei University, Baoding 071002, People's Republic of China
- Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding 071002, People's Republic of China
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4
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Ji B, Qi Z, Ye T, Li S, Shi Y, Cui S, Xiao J. Straightforward Synthesis of Pentagon-Embedded Expanded [11]Helicenes for Radiative Cooling Property. Chemistry 2024; 30:e202302893. [PMID: 37867144 DOI: 10.1002/chem.202302893] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/24/2023]
Abstract
Two new pentagon-embedded carbo[11]helicenes have been designed and synthesized in a three-step process, which are the first example of carbo[11]helicenes through the post-functionalization of twistacene. TD-DFT analyses indicate that both of them possess high enantiomerization barriers of 42.29 kcal/mol and 40.76 kcal/mol, respectively. They emit strong red fluorescence and can be chemically oxidized into stable cationic radicals upon addition of AgSbF6 evidenced by the bathochromic-shifted absorption spectra and the appearance of electronic paramagnetic resonance (EPR) signals. In addition, such helical derivatives can be chosen as radiative cooling materials in a glass model house, and the maxima of 5.4 °C for the former and 6.5 °C for the latter are found in the comparative tests, which might be caused by the NIR reflective response.
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Affiliation(s)
- Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Shuangxuan Li
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
| | - Shuang Cui
- Division of Analysis, SINOPEC (Beijing) Research Institute of Chemical Industry, Co. Ltd., Beijing, P. R. China
| | - Jinchong Xiao
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002, P. R. China
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5
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Qi Z, Shang H, Ji B, Shi Y, Ye T, Li Y, Xiao J. Heptagon-Embedded Helicene Derivatives: Synthesis, Crystal Structural Analyses, and Circularly Polarized Luminescence. J Org Chem 2023; 88:14550-14558. [PMID: 37812747 DOI: 10.1021/acs.joc.3c01563] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Two pairs of isomers of heptagon-embedded helical arenes (3/6 and 10/13) have been strategically prepared, where the molecular structures of 3 and 13 have been identified through single crystal X-ray diffraction analysis. The effect of the heptagon unit on the physical properties of 3, 6, 10, and 13 is investigated in a comparative manner, and the results indicate that the optical enantiomers of 13 obtained from HPLC exhibit promising chiroptical properties.
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Affiliation(s)
- Zewei Qi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Honglin Shang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Bingliang Ji
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Yanwei Shi
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Tongtong Ye
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
| | - Yiming Li
- College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P. R. China
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6
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Wang W, Li X, Qi Z, Ji B, Wang Z, Wang S, Xiao J. Synthesis, Crystal Analysis, and Physical Properties of Double [6]helicene-Containing Heteroarenes with Circularly Polarized Luminescence. Org Lett 2023; 25:1343-1347. [PMID: 36583556 DOI: 10.1021/acs.orglett.2c03786] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Two novel helical heteronanographenes bearing a [6]helicene unit (3a and 5a) have been synthesized, and their molecular structures are unambiguously determined via single-crystal X-ray diffraction analyses. Density functional theory calculations suggest that the as-prepared compounds have isomerization barriers of 29.02 kcal/mol for 3a and 34.07 kcal/mol for 5a, respectively. Optical enantiomers of 5a exhibit appealing chiroptical properties.
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Affiliation(s)
- Wei Wang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Xueqing Li
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Zewei Qi
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Bingliang Ji
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Zenghao Wang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Sujuan Wang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
| | - Jinchong Xiao
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, P.R. China
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7
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Synthesis, Photoswitching Behavior and Nonlinear Optical Properties of Substituted Tribenzo[ a, d, g]coronene. Molecules 2023; 28:molecules28031419. [PMID: 36771085 PMCID: PMC9919552 DOI: 10.3390/molecules28031419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/13/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
A family of tribenzocoronene derivatives bearing various substituents (3) were constructed through the Diels-Alder reaction, followed by the Scholl oxidation, where the molecular structure of 3b was determined via single crystal X-ray diffraction analysis. The effect of substitution on the optical and electrochemical property was systematically investigated, with the assistance of theoretical calculations. Moreover, the thin films of the resulting molecules 3b and 3e complexed with fullerene produced strong photocurrent response upon irradiation of white light. In addition, 3b and 3e exhibit a positive nonlinear optical response resulting from the two-photon absorption and excited state absorption processes.
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8
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Zhang YZ, Xu MM, Si XG, Hou JL, Cai Q. Enantioselective Synthesis of Inherently Chiral Calix[4]arenes via Palladium-Catalyzed Asymmetric Intramolecular C–H Arylations. J Am Chem Soc 2022; 144:22858-22864. [DOI: 10.1021/jacs.2c10606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yu-Zhen Zhang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Meng-Meng Xu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Xu-Ge Si
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Jun-Li Hou
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Quan Cai
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
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9
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Wang W, Yuan Z, Wang S, Li X, Ji B, Xiao J. Effect of Annulation Mode of Twistarene on the Physical Property and Self‐Assembly Behavior of Functionalized Curved Aromatic Molecules. Chemistry 2022; 28:e202201233. [DOI: 10.1002/chem.202201233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Wang
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
| | - Ziwei Yuan
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
| | - Sujuan Wang
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
| | - Xueqing Li
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
| | - Bingliang Ji
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
| | - Jinchong Xiao
- College of Chemistry and Environmental Science Key Laboratory of Chemical Biology of Hebei Province Hebei University Baoding 071002 P. R. China
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10
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Khan A, Fan HJS, Usman R, Saleh EAM, Refat MS, Alsimaree AA. Building hybrid luminescent materials: Understanding stacking modes in aggregate structure to emission modulation. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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11
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Zhou Z, Egger DT, Hu C, Pennachio M, Wei Z, Kawade RK, Üngör Ö, Gershoni-Poranne R, Petrukhina MA, Alabugin IV. Localized Antiaromaticity Hotspot Drives Reductive Dehydrogenative Cyclizations in Bis- and Mono-Helicenes. J Am Chem Soc 2022; 144:12321-12338. [PMID: 35652918 DOI: 10.1021/jacs.2c03681] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic anionic graphene subunits from mono- and bis-helicenes with an embedded five-membered ring. The reaction of bis-helicenes can either proceed to the full double annulation or be interrupted by addition of molecular oxygen at an intermediate stage. The regioselectivity of the interrupted cyclization cascade for bis-helicenes confirms that relief of antiaromaticity is a dominant force for these facile ring closures. Computational analysis reveals the unique role of the preexisting negatively charged cyclopentadienyl moiety in directing the second negative charge at a specific remote location and, thus, creating a localized antiaromatic region. This region is the hotspot that promotes the initial cyclization. Computational studies, including MO analysis, molecular electrostatic potential maps, and NICS(1.7)ZZ calculations, evaluate the interplay of the various effects including charge delocalization, helicene strain release, and antiaromaticity. The role of antiaromaticity relief is further supported by efficient reductive closure of the less strained monohelicenes where the relief of antiaromaticity promotes the cyclization even when the strain is substantially reduced. The latter finding significantly expands the scope of this reductive alternative to the Scholl ring closure.
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Affiliation(s)
- Zheng Zhou
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States.,School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Dominic T Egger
- Laboratory for Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8903, Switzerland
| | - Chaowei Hu
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Matthew Pennachio
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Zheng Wei
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Rahul K Kawade
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Ökten Üngör
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Renana Gershoni-Poranne
- Laboratory for Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8903, Switzerland.,Schulich Faculty of Chemistry, Technion ─ Israel Institute of Technology, Technion City 32000, Israel
| | - Marina A Petrukhina
- Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Igor V Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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12
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Han Y, Xiao J, Wu X, Wang Y, Zhang X, Song Y. Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene. Molecules 2022; 27:molecules27113564. [PMID: 35684501 PMCID: PMC9181967 DOI: 10.3390/molecules27113564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 11/16/2022] Open
Abstract
A novel two-branched twistacene (PyDN) has been designed and synthesized for application on ultrafast optical limiting. This twistacene exhibits excellent two photon absorption and two photon absorption-induced excited singlet state absorption, which was systematically investigated with a femtosecond Z-scan experiment, transient absorption spectrum, and two-photon excited fluorescence experiments. The admirable two photon absorption is attributed to the high degree of π electron delocalization in twistacene which is caused by introduction of two strong donors. The excited singlet state absorption cooperates with two-photon absorption to provide an excellent ultrafast optical limiting behavior with high linear transmittance, where the thresholds are 2.3-5.3 mJ/cm2 in the spectral region of 532-800 nm of femtosecond laser and 133 mJ/cm2 for picosecond pulse at 532 nm. These thresholds are lower than that of most of the optical limiters reported previously, which indicates PyDN is a promising candidate for ultrafast optical limiting.
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Affiliation(s)
- Yanbing Han
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China; (Y.H.); (Y.W.); (X.Z.)
| | - Jinchong Xiao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China;
| | - Xingzhi Wu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China;
| | - Yuxiao Wang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China; (Y.H.); (Y.W.); (X.Z.)
| | - Xueru Zhang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China; (Y.H.); (Y.W.); (X.Z.)
| | - Yinglin Song
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China; (Y.H.); (Y.W.); (X.Z.)
- Correspondence:
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13
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Heckershoff R, Maier S, Wurm T, Biegger P, Brödner K, Krämer P, Hoffmann MT, Eberle L, Stein J, Rominger F, Rudolph M, Freudenberg J, Dreuw A, Hashmi ASK, Bunz UHF. Cyclopentannulated Dihydrotetraazapentacenes. Chemistry 2022; 28:e202104203. [PMID: 35020239 PMCID: PMC9303544 DOI: 10.1002/chem.202104203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 11/11/2022]
Abstract
The transition-metal-catalyzed cyclization of bissilylethynylated N,N'-dihydrotetraazapentacene (TIPS-TAP-H2 ) into bissilylated cyclopenta[fg,qr]pentacenes is reported. Depending on the catalyst either none, one or two silyl groups migrate and change their positions in the formed five-membered rings. The optoelectronic properties are quite similar, whereas the packing motifs differ dramatically. Control experiments and quantum chemical calculations were performed to investigate the mechanism of the reaction and the selectivity of the silyl shift.
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Affiliation(s)
- Robin Heckershoff
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Steffen Maier
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Thomas Wurm
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Philipp Biegger
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Kerstin Brödner
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Petra Krämer
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Marvin T. Hoffmann
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 205 A69120HeidelbergGermany
| | - Lukas Eberle
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 205 A69120HeidelbergGermany
| | - Jana Stein
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 205 A69120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Matthias Rudolph
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Jan Freudenberg
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Andreas Dreuw
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 205 A69120HeidelbergGermany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
- Chemistry Department, Faculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia
| | - Uwe H. F. Bunz
- Organisch-Chemisches Institut (OCI)Ruprecht-Karls-Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
- Centre for Advanced Materials (CAM)Im Neuenheimer Feld 22569120HeidelbergGermany
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