1
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Izquierdo‐García P, Fernández‐García JM, Perles J, Fernández I, Martín N. Electronic Control of the Scholl Reaction: Selective Synthesis of Spiro vs Helical Nanographenes. Angew Chem Int Ed Engl 2023; 62:e202215655. [PMID: 36495528 PMCID: PMC10107473 DOI: 10.1002/anie.202215655] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Scholl oxidation has become an essential reaction in the bottom-up synthesis of molecular nanographenes. Herein, we describe a Scholl reaction controlled by the electronic effects on the starting substrate (1 a, b). Anthracene-based polyphenylenes lead to spironanographenes under Scholl conditions. In contrast, an electron-deficient anthracene substrate affords a helically arranged molecular nanographene formed by two orthogonal dibenzo[fg,ij]phenanthro-[9,10,1,2,3-pqrst]pentaphene (DBPP) moieties linked through an octafluoroanthracene core. Density Functional Theory (DFT) calculations predict that electronic effects control either the first formation of spirocycles and subsequent Scholl reaction to form spironanographene 2, or the expected dehydrogenation reaction leading solely to the helical nanographene 3. The crystal structures of four of the new spiro compounds (syn 2, syn 9, anti 9 and syn 10) were solved by single crystal X-ray diffraction. The photophysical properties of the new molecular nanographene 3 reveal a remarkable dual fluorescent emission.
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Affiliation(s)
- Patricia Izquierdo‐García
- Departamento de Química Orgánica IFacultad de Ciencias QuímicasUniversidad Complutense de MadridAvd. de la Complutense, S/N28040MadridSpain
| | - Jesús M. Fernández‐García
- Departamento de Química Orgánica IFacultad de Ciencias QuímicasUniversidad Complutense de MadridAvd. de la Complutense, S/N28040MadridSpain
| | - Josefina Perles
- Laboratorio de Difracción de Rayos X de MonocristalSIdIUniversidad Autónoma de Madridc/Francisco Tomás y Valiente, 7 Campus de Cantoblanco28049MadridSpain
| | - Israel Fernández
- Departamento de Química Orgánica IFacultad de Ciencias QuímicasUniversidad Complutense de MadridAvd. de la Complutense, S/N28040MadridSpain
| | - Nazario Martín
- Departamento de Química Orgánica IFacultad de Ciencias QuímicasUniversidad Complutense de MadridAvd. de la Complutense, S/N28040MadridSpain
- IMDEA-NanocienciaC/Faraday, 9, Campus de Cantoblanco28049MadridSpain
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2
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Menduti L, Baldoli C, Manetto S, Bolte M, Lerner H, Longhi G, Villani C, Licandro E, Wagner M. (BO) 2 -Doped Tetrathia[7]helicene: A Configurationally Stable Blue Emitter. Angew Chem Int Ed Engl 2023; 62:e202215468. [PMID: 36409523 PMCID: PMC10107351 DOI: 10.1002/anie.202215468] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/23/2022]
Abstract
Helicenes combine two central themes in chemistry: extended π-conjugation and chirality. Hetero-atom doping preserves both characteristics and allows modulation of the electronic structure of a helicene. Herein, we report the (BO)2 -doped tetrathia[7]helicene 1, which was prepared from 2-methoxy-3,3'-bithiophene in four steps. 1 is formally derived by substituting two (Mes)B-O moieties in place of (H)C=C(H) fragments in two benzene rings of the parent tetrathia[7]helicene. X-ray crystallography revealed a dihedral angle of 50.26(9)° between the two terminal thiophene rings. The (P)-/(M)-1 enantiomers were separated by chiral HPLC and are configurationally stable at room temperature. The experimentally determined enantiomerization barrier of 27.4±0.1 kcal mol-1 is lower than that of tetrathia[7]helicene (39.4±0.1 kcal mol-1 ). The circular dichroism spectra of (P)- and (M)-1 show a perfect mirror-image relationship. 1 is a blue emitter (λem =411 nm) with a photoluminescence quantum efficiency of ΦPL =6 % (cf. tetrathia[7]helicene: λem ≈405 nm, ΦPL =5 %).
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Affiliation(s)
- Luigi Menduti
- Institut für Anorganische ChemieGoethe-Universität FrankfurtMax-von-Laue-Strasse 760438Frankfurt (Main)Germany
- Dipartimento di ChimicaUniversità degli Studi di MilanoVia Camillo Golgi 1920133MilanoItaly
| | - Clara Baldoli
- CNR Istituto di Scienze e Tecnologie Chimiche Giulio NattaVia Camillo Golgi 1920133MilanoItaly
| | - Simone Manetto
- Dipartimento di Chimica e Tecnologie del FarmacoSapienza Università di RomaP.le A. Moro 500185RomaItaly
| | - Michael Bolte
- Institut für Anorganische ChemieGoethe-Universität FrankfurtMax-von-Laue-Strasse 760438Frankfurt (Main)Germany
| | - Hans‐Wolfram Lerner
- Institut für Anorganische ChemieGoethe-Universität FrankfurtMax-von-Laue-Strasse 760438Frankfurt (Main)Germany
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e TraslazionaleUniversità di BresciaViale Europa 1125123BresciaItaly
| | - Claudio Villani
- Dipartimento di Chimica e Tecnologie del FarmacoSapienza Università di RomaP.le A. Moro 500185RomaItaly
| | - Emanuela Licandro
- Dipartimento di ChimicaUniversità degli Studi di MilanoVia Camillo Golgi 1920133MilanoItaly
| | - Matthias Wagner
- Institut für Anorganische ChemieGoethe-Universität FrankfurtMax-von-Laue-Strasse 760438Frankfurt (Main)Germany
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3
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Spisak SN, Zhou Z, Liu S, Xu Q, Wei Z, Kato K, Segawa Y, Itami K, Rogachev AY, Petrukhina MA. Stepwise Generation of Mono‐, Di‐, and Triply‐Reduced Warped Nanographenes: Charge‐Dependent Aromaticity, Surface Nonequivalence, Swing Distortion, and Metal Binding Sites. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sarah N. Spisak
- Department of Chemistry University at Albany, State University of New York Albany NY 12222 USA
| | - Zheng Zhou
- Department of Chemistry University at Albany, State University of New York Albany NY 12222 USA
| | - Shuyang Liu
- Department of Chemistry Illinois Institute of Technology Chicago IL 60616 USA
| | - Qi Xu
- Department of Chemistry Illinois Institute of Technology Chicago IL 60616 USA
| | - Zheng Wei
- Department of Chemistry University at Albany, State University of New York Albany NY 12222 USA
| | - Kenta Kato
- Department of Chemistry Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Yasutomo Segawa
- Department of Chemistry Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
- JST ERATO Itami Molecular Nanocarbon Project Nagoya University Nagoya 464-8602 Japan
- Institute for Molecular Science, Myodaiji Okazaki 444-8787 Japan
- Department of Structural Molecular Science SOKENDAI (The Graduate University for Advanced Studies), Myodaiji Okazaki 444-8787 Japan
| | - Kenichiro Itami
- Department of Chemistry Graduate School of Science Nagoya University, Chikusa Nagoya 464-8602 Japan
- JST ERATO Itami Molecular Nanocarbon Project Nagoya University Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM) Nagoya University Nagoya 464-8602 Japan
| | - Andrey Yu. Rogachev
- Department of Chemistry Illinois Institute of Technology Chicago IL 60616 USA
| | - Marina A. Petrukhina
- Department of Chemistry University at Albany, State University of New York Albany NY 12222 USA
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4
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Spisak SN, Zhou Z, Liu S, Xu Q, Wei Z, Kato K, Segawa Y, Itami K, Rogachev AY, Petrukhina MA. Stepwise Generation of Mono-, Di-, and Triply-Reduced Warped Nanographenes: Charge-Dependent Aromaticity, Surface Nonequivalence, Swing Distortion, and Metal Binding Sites. Angew Chem Int Ed Engl 2021; 60:25445-25453. [PMID: 34554612 DOI: 10.1002/anie.202110748] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/18/2021] [Indexed: 11/09/2022]
Abstract
The stepwise chemical reduction of a molecular warped nanographene (WNG) having a negatively curved π-surface and defined C80 H30 composition with Cs metal used as the reducing and complexing agent allowed the isolation of three different reduced states with one, two, and three electrons added to its π-conjugated system. This provided a unique series of nanosized carbanions with increasing negative charge for in-depth structural analysis of consequences of controlled electron charging of non-planar nanographenes, using X-ray crystallographic and computational tools. The 3D molecular electrostatic potential (MEP) maps identified the negative charge localization at the central part of the WNG surface where selective coordination of Cs+ ions is confirmed crystallographically. In-depth theoretical investigation revealed a complex response of the WNG to the stepwise electron acquisition. The extended and contorted π-surface of the WNG undergoes subtle swinging distortions that are accompanied by notable changes in the electronic structure and site-dependent aromaticity of the resulting carbanions.
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Affiliation(s)
- Sarah N Spisak
- Department of Chemistry, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Zheng Zhou
- Department of Chemistry, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Shuyang Liu
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, 60616, USA
| | - Qi Xu
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, 60616, USA
| | - Zheng Wei
- Department of Chemistry, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Kenta Kato
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Yasutomo Segawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,JST, ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Nagoya, 464-8602, Japan.,Institute for Molecular Science, Myodaiji, Okazaki, 444-8787, Japan.,Department of Structural Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, 444-8787, Japan
| | - Kenichiro Itami
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,JST, ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Nagoya, 464-8602, Japan.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, 464-8602, Japan
| | - Andrey Yu Rogachev
- Department of Chemistry, Illinois Institute of Technology, Chicago, IL, 60616, USA
| | - Marina A Petrukhina
- Department of Chemistry, University at Albany, State University of New York, Albany, NY, 12222, USA
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5
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Zhou Z, Wei Z, Ikemoto K, Sato S, Isobe H, Petrukhina MA. Chemical Reduction of a Nanosized [6]Cyclo‐2,7‐naphthylene Macrocycle. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100942] [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)
- Zheng Zhou
- Department of Chemistry University at Albany, State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Zheng Wei
- Department of Chemistry University at Albany, State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Koki Ikemoto
- Department of Chemistry The University of Tokyo Hongo 7-3-1 Bunkyo-ku Tokyo 113-0033 Japan
| | - Sota Sato
- Department of Chemistry The University of Tokyo Hongo 7-3-1 Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroyuki Isobe
- Department of Chemistry The University of Tokyo Hongo 7-3-1 Bunkyo-ku Tokyo 113-0033 Japan
| | - Marina A. Petrukhina
- Department of Chemistry University at Albany, State University of New York 1400 Washington Ave Albany NY 12222 USA
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6
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Zhou Z, Wei Z, Ikemoto K, Sato S, Isobe H, Petrukhina MA. Chemical Reduction of a Nanosized [6]Cyclo-2,7-naphthylene Macrocycle. Angew Chem Int Ed Engl 2021; 60:11201-11205. [PMID: 33617079 DOI: 10.1002/anie.202100942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Indexed: 11/06/2022]
Abstract
Chemical reduction of a naphthylene macrocycle, [6]cyclo-2,7-naphthylene ([6]CNAP, 1), with alkali metals, Li and K, revealed the accessibility of the doubly-reduced state of 1. The macrocyclic 12- anion was isolated in different coordination environments and crystallographically characterized. The single-crystal X-ray diffraction confirmed the formation of contact-ion complexes with one Li+ and two K+ ions in THF, and a "naked" dianion in the solvent-separated ion product with K+ ions in the presence of 18-crown-6 ether. The detailed structural analysis of 12- showed that the π-conjugation over the biaryl linkages between naphthylene panels were enhanced upon two-fold reduction, which was rationally explained by theoretical calculations.
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Affiliation(s)
- Zheng Zhou
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Ave, Albany, NY, 12222, USA
| | - Zheng Wei
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Ave, Albany, NY, 12222, USA
| | - Koki Ikemoto
- Department of Chemistry, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Sota Sato
- Department of Chemistry, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hiroyuki Isobe
- Department of Chemistry, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Marina A Petrukhina
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Ave, Albany, NY, 12222, USA
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7
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Zhou Z, Fu L, Hu Y, Wang X, Wei Z, Narita A, Müllen K, Petrukhina MA. Compressing Double [7]Helicene by Successive Charging with Electrons. Angew Chem Int Ed Engl 2020; 59:15923-15927. [DOI: 10.1002/anie.202005852] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/22/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Zheng Zhou
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Lin Fu
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 China
| | - Yunbin Hu
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Organic and Polymer Chemistry College of Chemistry and Chemical Engineering Central South University 932 Lushan S Rd Changsha Hunan 410083 China
| | - Xiao‐Ye Wang
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 China
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Zheng Wei
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Akimutsu Narita
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Marina A. Petrukhina
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
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8
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Zhou Z, Fu L, Hu Y, Wang X, Wei Z, Narita A, Müllen K, Petrukhina MA. Compressing Double [7]Helicene by Successive Charging with Electrons. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005852] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zheng Zhou
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Lin Fu
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 China
| | - Yunbin Hu
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Department of Organic and Polymer Chemistry College of Chemistry and Chemical Engineering Central South University 932 Lushan S Rd Changsha Hunan 410083 China
| | - Xiao‐Ye Wang
- State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 China
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Zheng Wei
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
| | - Akimutsu Narita
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Marina A. Petrukhina
- Department of Chemistry University at Albany State University of New York 1400 Washington Ave Albany NY 12222 USA
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9
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European Academy of Sciences: 2020 Award Winners and New Members. Angew Chem Int Ed Engl 2020; 59:8327. [DOI: 10.1002/anie.202004250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Europäische Akademie der Naturwissenschaften: Preisträger und neue Mitglieder 2020. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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