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Misselwitz E, Spengler J, Rominger F, Kivala M. Indenoannulated Tridecacyclene: An All-Carbon Seven-Stage Redox-Amphoter. Chemistry 2024; 30:e202400696. [PMID: 38563636 DOI: 10.1002/chem.202400696] [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: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 04/04/2024]
Abstract
We disclose an indenoannulated tridecacyclene comprising a central cyclooctatetraene moiety with multiple adjacent pentagonal rings which is accessible in a concise synthetic sequence. The saddle-shaped geometry of the non-benzenoid polycyclic scaffold and its unique packing behavior in the solid state were characterized by X-ray crystallography. In electrochemical studies, the compound undergoes seven reversible redox events comprising five reductions and two oxidations. The dicationic and dianionic species obtained by chemical oxidation and reduction, respectively, were characterized spectroscopically in solution. Density functional theory calculations were applied to provide insights into aromaticity evolution in the respective charged species, highlighting the beneficial effect of the non-benzenoid moieties on charge stabilization.
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Affiliation(s)
- Erik Misselwitz
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Jonas Spengler
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Milan Kivala
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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2
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Polkaehn J, Ehlers P, Villinger A, Langer P. Pyrene-bridged acenaphthenes: synthesis and properties of a diacenaphtho[1,2- e:1',2'- l]pyrene and its symmetrical nitrogen analogue. Org Biomol Chem 2023. [PMID: 38044660 DOI: 10.1039/d3ob01744c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The considerable need for novel polyaromatic hydrocarbons (PAHs) for applications in the area of organic electronics remains unchanged. Diacenaphthopyrene represents a new PAH consisting of two acenaphthylene units connected by a pyrene bridge. The system is built up by Pd-catalyzed cross-coupling, followed by acid catalyzed cyclosiomerization to generate the pyrene moiety. The new fused scaffold is formed in the last step in convincing yields by means of CH-activation. We additionally synthesized one aza-pyrene based analogue. The two hitherto unknown PAHs were investigated in detail by UV-Vis and PL spectroscopy, CV measurements and DFT calculations. Based on these results, the abilities of the novel structure as well as the effect of incorporation of nitrogen were evaluated.
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Affiliation(s)
- Jonas Polkaehn
- Institute of Chemistry, University Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
| | - Peter Ehlers
- Institute of Chemistry, University Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
| | - Alexander Villinger
- Institute of Chemistry, University Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
| | - Peter Langer
- Institute of Chemistry, University Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
- Leibniz Institute for Catalysis (LIKAT) at the University Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany
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3
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Maulbetsch T, Frech P, Scheele M, Törnroos KW, Kunz D. A Saddle-Shaped Expanded Porphyrinoid Fitting C 60. Chemistry 2023; 29:e202302104. [PMID: 37421647 DOI: 10.1002/chem.202302104] [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: 07/02/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/10/2023]
Abstract
We present the synthesis of a new type of an expanded porphyrinoid macrocycle with a saddle-shaped morphology and its complexation of C60 guest molecules. The new macrocycle contains four carbazole and four triazole moieties and can be readily synthesized via a copper-catalyzed click reaction. It shows specific photo-physical properties including fluorescence with a high quantum yield of 60 %. The combination of the saddle-shaped geometry with the expanded π-system allows for host-guest interactions with C60 in a stacked polymer fashion. Evidence for the presence of a host-guest complex is provided both in solution by NMR spectroscopy and in the solid state by X-ray structure analysis.
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Affiliation(s)
- Theo Maulbetsch
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Philipp Frech
- Institut für Physikalische Chemie und Theoretische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Marcus Scheele
- Institut für Physikalische Chemie und Theoretische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Karl W Törnroos
- Department of Chemistry, University of Bergen, 5007, Bergen, Norway
| | - Doris Kunz
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
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4
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Wang B, Fang Q. π-Extended Octupolar Cyclized Indole Tetramer and Trimer Derivatives with Second- and Third-Order Nonlinear Optical Properties. J Org Chem 2023; 88:5520-5529. [PMID: 37036955 DOI: 10.1021/acs.joc.3c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Several aromatic-fused octupolar tetraindole (TTI) and triindole (TI) derivatives have been synthesized via POCl3-promoted cyclopolymerization of the aromatic-fused oxindoles. As a result, the terminal phenyls of TTI and TI are fused with the phenyl group, indenyl group, and benzothienyl group separately in the π-extended target compounds TTIp and TIp, TTIid and TIid, and TTIbt and TIbt (including pairs of syn- and anti-isomers). Single-crystal X-ray diffraction disclosed that the tetramer syn-TTIbt keeps an S4-symmetric architecture and crystallizes in the P42/n space group. With the extension of the π-conjugation, the absorption and emission bands of the above tetramers and trimers are remarkably red-shifted. The second-order nonlinear optical (NLO) coefficients (β value) of syn-TTIbt and anti-TTIbt have been calculated to be 1.5 and 2.1 times that of their parent compound TTI, respectively. In the domain of the third-order NLO, the two-photon absorption sections (δ value) of syn-TIbt and anti-TIbt have been measured to be 37 and 102 times that of TI, respectively. These results indicate that the π-extension strategy here is successful, and the anti-isomers have better NLO properties and better π-conjugation than their corresponding syn-isomers.
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Affiliation(s)
- Bing Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Qi Fang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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Kumar R, Chmielewski PJ, Lis T, Volkmer D, Stępień M. Tridecacyclene Tetraimide: An Easily Reduced Cyclooctatetraene Derivative. Angew Chem Int Ed Engl 2022; 61:e202207486. [PMID: 35819871 PMCID: PMC9545420 DOI: 10.1002/anie.202207486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Rakesh Kumar
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Piotr J. Chmielewski
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Tadeusz Lis
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Dirk Volkmer
- Institute of Physics Chair of Solid State and Materials Science Augsburg University Universitätsstrasse 1 86159 Augsburg Germany
| | - Marcin Stępień
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
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Kumar R, Chmielewski P, Lis T, Volkmer D, Stępień M. Tridecacyclene Tetraimide: An Easily Reduced Cyclooctatetraene Derivative. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rakesh Kumar
- University of Wroclaw: Uniwersytet Wroclawski Faculty of Chemistry POLAND
| | - Piotr Chmielewski
- University of Wroclaw: Uniwersytet Wroclawski Faculty of Chemistry POLAND
| | - Tadeusz Lis
- University of Wroclaw: Uniwersytet Wroclawski Faculty of Chemistry POLAND
| | - Dirk Volkmer
- Augsburg University Institute of Physics, Chair of Solid State and Materials Science GERMANY
| | - Marcin Stępień
- University of Wroclaw Department of Chemistry ul. F. Joliot-Curie 14 50-383 Wroclaw POLAND
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Tomada J, Dienel T, Hampel F, Fasel R, Amsharov K. Combinatorial design of molecular seeds for chirality-controlled synthesis of single-walled carbon nanotubes. Nat Commun 2019; 10:3278. [PMID: 31332189 PMCID: PMC6646389 DOI: 10.1038/s41467-019-11192-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 06/21/2019] [Indexed: 11/09/2022] Open
Abstract
The chirality-controlled synthesis of single-walled carbon nanotubes (SWCNTs) is a major challenge facing current nanomaterials science. The surface-assisted bottom-up fabrication from unimolecular CNT seeds (precursors), which unambiguously predefine the chirality of the tube during the growth, appears to be the most promising approach. This strategy opens a venue towards controlled synthesis of CNTs of virtually any possible chirality by applying properly designed precursor molecules. However, synthetic access to the required precursor molecules remains practically unexplored because of their complex structure. Here, we report a general strategy for the synthesis of molecular seeds for the controlled growth of SWCNTs possessing virtually any desired chirality by combinatorial multi-segmental assembly. The suggested combinatorial approach allows facile assembly of complex CNT precursors (with up to 100 carbon atoms immobilized at strictly predefined positions) just in one single step from complementary segments. The feasibility of the approach is demonstrated on the synthesis of the precursor molecules for 21 different SWCNT chiralities utilizing just three relatively simple building blocks. Bottom-up synthesis from rationally designed precursor molecules is one of the most promising routes to single-walled carbon nanotubes of any desired chirality. Here, the authors present a combinatorial approach to easily assemble a variety of these complex nanotube precursors from simple complementary segments.
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Affiliation(s)
- Joerg Tomada
- Friedrich-Alexander-University Erlangen-Nuremberg, Department of Chemistry and Pharmacy, 91058, Erlangen, Germany
| | - Thomas Dienel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
| | - Frank Hampel
- Friedrich-Alexander-University Erlangen-Nuremberg, Department of Chemistry and Pharmacy, 91058, Erlangen, Germany
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland
| | - Konstantin Amsharov
- Friedrich-Alexander-University Erlangen-Nuremberg, Department of Chemistry and Pharmacy, 91058, Erlangen, Germany.
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Alrayyani M, Miljanić OŠ. Benzoins and cyclobenzoins in supramolecular and polymer chemistry. Chem Commun (Camb) 2018; 54:11989-11997. [DOI: 10.1039/c8cc07407k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Benzoin condensation is one of the oldest rigorously described organic reactions, having been discovered in 1832 by Liebig and Wöhler. This Feature Article summarizes our work on cyclobenzoins: a class of macrocyclic compounds prepared by a benzoin cyclooligomerization of simple aromatic dialdehydes.
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Tamoto A, Aratani N, Yamada H. Contraction of π‐Conjugated Rings upon Oxidation from Cyclooctatetraene to Benzene via the Tropylium Cation. Chemistry 2017; 23:16388-16392. [DOI: 10.1002/chem.201704008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Akira Tamoto
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Naoki Aratani
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
| | - Hiroko Yamada
- Graduate School of Materials Science Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho Ikoma 630-0192 Japan
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10
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Miller RW, Averill SE, Van Wyck SJ, Whalley AC. General Method for the Synthesis of Functionalized Tetrabenzo[8]circulenes. J Org Chem 2016; 81:12001-12005. [DOI: 10.1021/acs.joc.6b02244] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robert W. Miller
- Department
of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
| | - Summer E. Averill
- Department
of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
| | - Stephen J. Van Wyck
- Department
of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
| | - Adam C. Whalley
- Department
of Chemistry, University of Vermont, Burlington, Vermont 05405, United States
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11
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Sumy DP, Finke AD, Whalley AC. The reductive aromatization of tridecacyclene. Chem Commun (Camb) 2016; 52:12368-12371. [DOI: 10.1039/c6cc06078a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
X-ray analysis of the dipotassium adduct of tridecacyclene reveals significant evidence of increased aromatic character despite its tub-like shape.
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Affiliation(s)
- Daniel P. Sumy
- The University of Vermont
- Department of Chemistry
- Burlington
- USA
| | - Aaron D. Finke
- Swiss Light Source
- Paul Scherrer Institute
- 5232 Villigen PSI
- Switzerland
| | - Adam C. Whalley
- The University of Vermont
- Department of Chemistry
- Burlington
- USA
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