1
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Silber V, Gourlaouen C, Ruppert R. Keto-enol equilibrium: stable tautomers of ortho-, meta-, and para-hydroquinones in large aromatics. RSC Adv 2024; 14:11969-11976. [PMID: 38623286 PMCID: PMC11017376 DOI: 10.1039/d4ra02202e] [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: 03/22/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024] Open
Abstract
The synthesis of [6]helicene para-quinone starting from the 1,4-dimethoxy-[6]helicene derivative is presented. The demethylation reaction with boron tribromide led to unexpected results. Instead of the expected para-hydroquinone, the diketone tautomeric form was isolated. In contrast to the 1,4-hydroquinone and 1,4-dihydroxynaphthalene, the stable tautomers for the [4] and [6]helicenes were the aromatic diketones. These experimental results were corroborated by calculations. Additional calculations showed that these tautomeric species were indeed the stable forms of 1,4 and 1,3-hydroquinones when present in larger aromatics, in drastic contrast with 1,2-dihydroxy-aromatics (known as catechol).
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Affiliation(s)
- Vincent Silber
- Institut de Chimie, UMR CNRS 7177, Université de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Christophe Gourlaouen
- Institut de Chimie, UMR CNRS 7177, Université de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Romain Ruppert
- Institut de Chimie, UMR CNRS 7177, Université de Strasbourg 4 Rue Blaise Pascal 67000 Strasbourg France
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2
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Matsuo Y, Maeda C, Tsutsui Y, Tanaka T, Seki S. Synthesis of Closed-Heterohelicenes Interconvertible between Their Monomeric and Dimeric Forms. Angew Chem Int Ed Engl 2023; 62:e202314968. [PMID: 37883214 DOI: 10.1002/anie.202314968] [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: 10/05/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
Oxidative fusion reaction of cyclic heteroaromatic pentads consisting of pyrrole and thiophene gave closed-heterohelicene monomers and dimers depending on the oxidation conditions. Specifically, oxidation with [bis(trifluoroacetoxy)iodo]benzene (PIFA) gave closed-[7]helicene dimers connected at the β-position of one of the pyrrole units with remarkably elongated C-C bonds of about 1.60 Å. Although this bond was intact against thermal and physical activations, homolytic bond dissociation took place in DMSO upon irradiation with UV light to give the corresponding monomers. Thus, interconversion between the closed-helicene monomer and dimer was achieved. The optically pure dimer was photo-dissociated into the monomers associated with a turn-on of circularly polarized luminescence (CPL).
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Affiliation(s)
- Yusuke Matsuo
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Yusuke Tsutsui
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takayuki Tanaka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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3
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Rocker J, Dresel JA, Krieger LA, Eckhardt P, Ortuño AM, Kitzmann WR, Clever GH, Heinze K, Opatz T. Substitution Effects on the Photophysical and Photoredox Properties of Tetraaza[7]helicenes. Chemistry 2023; 29:e202301244. [PMID: 37222393 DOI: 10.1002/chem.202301244] [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: 04/19/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 05/25/2023]
Abstract
A series of substituted derivatives of tetraaza[7]helicenes were synthesized and the influence of the substitution on their photophysical and photoredox-catalytic properties was studied. The combination of their high fluorescence quantum yields of up to 0.65 and their circularly polarized luminescence (CPL) activity results in CPL brightness values (BCPL ) that are among the highest recorded for [7]helicenes so far. A sulfonylation/hetarylation reaction using cyanopyridines as substrates for photoinduced electron transfer (PET) from the excited helicenes was conducted to test for viability in photoredox catalysis. DFT calculations predict the introduction of electron withdrawing substituents to yield more oxidizing catalysts.
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Affiliation(s)
- Johannes Rocker
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Johannes A Dresel
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Leonie A Krieger
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Paul Eckhardt
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Ana M Ortuño
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Winald R Kitzmann
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Guido H Clever
- Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Katja Heinze
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Till Opatz
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128, Mainz, Germany
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4
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Karoń K, Rode JE, Kaczorek D, Kawęcki R, Pluczyk-Małek S, Łapkowski M, Ostrowski S, Lyczko K, Dobrowolski JC. UV-vis and ECD spectroelectrochemistry of atropisomeric naphthalenediimide derivative. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122089. [PMID: 36436264 DOI: 10.1016/j.saa.2022.122089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/21/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The UV-vis and ECD spectroelectrochemistry (SEC) of a chiral binaphthalenylamine derivative of the N-butyl naphthalenediimide (NDIB-NH2) enantiomers were applied to measure UV-vis and ECD spectra of NDIB-NH2 radicals and dianion formed in the reduction and oxidation processes observed in cyclic voltammetry (CV). The CV curves and EPR spectroelectrochemistry enabled us to establish conditions at which a radical-anion [NDIB-NH2]̇.-, a dianion [NDIB-NH2]2-, and a radical-cation [NDIB-NH2]̇.+ are formed. The DFT restricted open-shell CAM-B3LYP-D3/def2TZVP/PCM calculations demonstrated that in the radical-anion [NDIB-NH2]̇.-, spin is spread over the NDI system while in the radical-cation [NDIB-NH2]̇+ it is spread over the aminonaphthalene moiety. The UV-vis spectra of radical-anion and dianion show the most significant changes in the 400-800 nm range. In that range, the ECD spectra varied with the change of electrode potential more than the UV-vis did and enabled the identification of a new ECD band of [NDIB-NH2]̇.- at ca. 400 nm hidden in the background in the UV spectra at -1000 mV. A broad structured ECD pattern with a maximum at ca. 530 nm was observed for [NDIB-NH2]̇.- (-1000 mV), while a single smooth ECD band of [NDIB-NH2]2- was located at 520 nm (-1750 mV). For the first time, an isosbestic point (455 nm) was found in ECD spectroelectrochemical measurements for the radical-cation [NDIB-NH2]̇.+ in equilibrium with the NDIB-NH2 neutral form. The TD-DFT CAM-B3LYP-D3/6-31G** calculations combined with the hybrid (explicit combined with implicit) solvation model fairly well reproduced the UV-vis and ECD SEC of neutral and redox forms of NDIB-NH2 but the ECD spectrum of [NDIB-NH2]̇.+ above 390 nm.
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Affiliation(s)
- Krzysztof Karoń
- Faculty of Chemistry, Silesian University of Technology, 9 Strzody Street, 44-100 Gliwice, Poland; Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 22b Konarskiego Street, 44-100 Gliwice, Poland.
| | - Joanna E Rode
- Laboratory for Spectroscopy, Molecular Modeling and Structure Determination, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland.
| | - Dorota Kaczorek
- Faculty of Science, Siedlce University, 3 Maja Street No 54, 08-110 Siedlce, Poland
| | - Robert Kawęcki
- Faculty of Science, Siedlce University, 3 Maja Street No 54, 08-110 Siedlce, Poland
| | - Sandra Pluczyk-Małek
- Faculty of Chemistry, Silesian University of Technology, 9 Strzody Street, 44-100 Gliwice, Poland; Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 22b Konarskiego Street, 44-100 Gliwice, Poland
| | - Mieczysław Łapkowski
- Faculty of Chemistry, Silesian University of Technology, 9 Strzody Street, 44-100 Gliwice, Poland; Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, 22b Konarskiego Street, 44-100 Gliwice, Poland; Centre of Polymer and Carbon Materials, Polish Academy of Science, 34 Curie Sklodowska Street, 41-800 Zabrze, Poland
| | - Sławomir Ostrowski
- Laboratory for Spectroscopy, Molecular Modeling and Structure Determination, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland
| | - Krzysztof Lyczko
- Laboratory for Spectroscopy, Molecular Modeling and Structure Determination, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland
| | - Jan Cz Dobrowolski
- Laboratory for Spectroscopy, Molecular Modeling and Structure Determination, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland.
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5
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Rushworth J, Thawani AR, Fajardo-Ruiz E, Meiring JCM, Heise C, White AJP, Akhmanova A, Brandt JR, Thorn-Seshold O, Fuchter MJ. [5]-Helistatins: Tubulin-Binding Helicenes with Antimitotic Activity. JACS AU 2022; 2:2561-2570. [PMID: 36465552 PMCID: PMC9709948 DOI: 10.1021/jacsau.2c00435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 06/17/2023]
Abstract
Helicenes are high interest synthetic targets with unique conjugated helical structures that have found important technological applications. Despite this interest, helicenes have had limited impact in chemical biology. Herein, we disclose a first-in-class antimitotic helicene, helistatin 1 (HA-1), where the helicene scaffold acts as a structural mimic of colchicine, a known antimitotic drug. The synthesis proceeds via sequential Pd-catalyzed coupling reactions and a π-Lewis acid cycloisomerization mediated by PtCl2. HA-1 was found to block microtubule polymerization in both cell-free and live cell assays. Not only does this demonstrate the feasibility of using helicenes as bioactive scaffolds against protein targets, but also suggests wider potential for the use of helicenes as isosteres of biaryls or cis-stilbenes-themselves common drug and natural product scaffolds. Overall, this study further supports future opportunities for helicenes for a range of chemical biological applications.
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Affiliation(s)
- James
L. Rushworth
- Department
of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 OBZ, U.K.
| | - Aditya R. Thawani
- Department
of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 OBZ, U.K.
| | - Elena Fajardo-Ruiz
- Department
of Pharmacy, Ludwig-Maximilians University
of Munich, Munich 81377, Germany
| | - Joyce C. M. Meiring
- Cell
Biology, Neurobiology and Biophysics, Department of Biology, Faculty
of Science, Utrecht University, Utrecht 3584 CH, Netherlands
| | - Constanze Heise
- Department
of Pharmacy, Ludwig-Maximilians University
of Munich, Munich 81377, Germany
| | - Andrew J. P. White
- Department
of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 OBZ, U.K.
| | - Anna Akhmanova
- Cell
Biology, Neurobiology and Biophysics, Department of Biology, Faculty
of Science, Utrecht University, Utrecht 3584 CH, Netherlands
| | - Jochen R. Brandt
- Department
of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 OBZ, U.K.
| | - Oliver Thorn-Seshold
- Department
of Pharmacy, Ludwig-Maximilians University
of Munich, Munich 81377, Germany
| | - Matthew J. Fuchter
- Department
of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 OBZ, U.K.
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6
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Zullo V, Grecchi S, Araneo S, Galli M, Arnaboldi S, Micheli L, Mezzetta A, Guazzelli L, Iuliano A, Mussini PR. Electroactive bio-based chiral tweezers:attractive selectors for enantioselective voltammetry. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Yoshida J, Yamazaki K, Tateyama K, Yuge H, Sato H. Chiroptical switching behavior of heteroleptic ruthenium complexes bearing acetylacetonato and tropolonato ligands. Dalton Trans 2021; 50:14611-14617. [PMID: 34605516 DOI: 10.1039/d1dt02592a] [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
Four types of tris-chelate ruthenium complexes bearing acetylacetonato (acac) and tropolonato (trop) ligands were synthesized and optically resolved into Δ and Λ isomers: [Ru(acac)3] (Ru-0), [Ru(acac)2(trop)] (Ru-1), [Ru(acac)(trop)2] (Ru-2), and [Ru(trop)3] (Ru-3). Chiral HPLC chromatograms, electronic circular dichroism (ECD), and vibrational circular dichroism (VCD) of the four ruthenium complexes were systematically investigated. As a result, the absolute configurations of the newly prepared enantiomeric complexes Ru-2 and Ru-3 were determined. For the case of Ru-2, its absolute configuration was also confirmed by single crystal X-ray diffraction analysis. The ECD changes upon chemical oxidation were further investigated for the four complexes. An ECD change in enantiomeric Ru-1 was observed upon oxidation, but the oxidized species soon returned to the neutral state within a few minutes. Enantiomers of Ru-3 also showed explicit ECD changes upon oxidation. Further, the lifetime of the oxidized state was the longest among the four investigated complexes, whereas they racemized in solution at room temperature. In contrast, the enantiomers of heteroleptic complexes (Ru-1 and Ru-2) concurrently exhibited ECD changes, relatively long lifetime of the oxidized state, and nil or quite slow racemization behavior. The coexistence of acac and trop ligands was key to making the competing factors compatible in the resultant ruthenium complexes.
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Affiliation(s)
- Jun Yoshida
- Department of Chemistry, College of Humanities & Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan.
| | - Kana Yamazaki
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, 252-0373, Japan
| | - Kazunori Tateyama
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, 252-0373, Japan
| | - Hidetaka Yuge
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, 252-0373, Japan
| | - Hisako Sato
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-chou, Matsuyama, Ehime 790-8577, Japan
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8
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Nguyen THT, Eerdun C, Okayama T, Hisanaga S, Tominaga T, Mochida T, Setsune JI. Stereochemistry and chiroptical properties of bimetallic single helicates of hexapyrrole-α, ω-dicarbaldimines with high diastereoselectivity. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s108842462150111x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bimetallic complexes of hexapyrrole-[Formula: see text],[Formula: see text]-dicarbaldimines consisting of a pair of four-coordinate metal sites adopt a helical closed [Formula: see text]-symmetric form or sigmoidal open forms depending on whether the 2,2[Formula: see text]-bipyrrole subunit at the center of the hexapyrrole chain takes cis- or trans-conformation. X-ray crystallography of a bisNi complex having N-[([Formula: see text]-1-cyclohexylethyl]carbaldimine units at both ends of the hexapyrrole chain revealed a non-symmetric heterohelical open form where the metal coordination sites of opposite helical sense sit on opposite sides of the central 2,2[Formula: see text]-bipyrrole subunit. BisPd complexes preferred a closed [Formula: see text] form and a steric bulk at the 3,3[Formula: see text]-position of the 2,2[Formula: see text]-bipyrrole subunit improved the helical sense bias. A bisPd complex with N-[([Formula: see text]-1-cyclohexylethyl]carbaldimine units adopts a helical closed [Formula: see text] form exclusively with full bias for a [Formula: see text]-helical sense. These bimetallic single stranded helicates were reversibly oxidized to [Formula: see text]-cation radicals at 0.1[Formula: see text]0.3 V vs. a ferrocene/ferrocenium couple and spectroelectrochemistry revealed remarkable absorption and CD spectral changes in the Vis-NIR region.
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Affiliation(s)
- Thi Hien Thuy Nguyen
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Chaolu Eerdun
- School of Pharmaceutical Science, Inner Mongolia Medical University Jinshan Econimic & Technology Development District, Hohhot 010100, China
| | - Takuya Okayama
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Satoshi Hisanaga
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Takumi Tominaga
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Tomoyuki Mochida
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Jun-ichiro Setsune
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
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9
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2,12-Diaza[6]helicene: An Efficient Non-Conventional Stereogenic Scaffold for Enantioselective Electrochemical Interphases. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9080216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The new configurationally stable, unsymmetrical 2,12-diaza[6]helicene was synthesized as a racemate and the enantiomers were separated in an enantiopure state by semi-preparative HPLC on chiral stationary phase. Under selected alkylation conditions it was possible to obtain both the enantiopure 2-N-mono- and di-N-ethyl quaternary iodides. Metathesis with bis(trifluoromethanesulfonyl)imide anion gave low-melting salts which were tested as inherently chiral additives to achiral ionic liquids for the electrochemical enantiodiscrimination of chiral organic probes in voltammetric experiments. Remarkable differences in the oxidation potentials of the enantiomers of two probes, a chiral ferrocenyl amine and an aminoacid, were achieved; the differences increase with increasing additive concentration and number of alkylated nitrogen atoms.
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10
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Fontana F, Carminati G, Bertolotti B, Mussini PR, Arnaboldi S, Grecchi S, Cirilli R, Micheli L, Rizzo S. Helicity: A Non-Conventional Stereogenic Element for Designing Inherently Chiral Ionic Liquids for Electrochemical Enantiodifferentiation. Molecules 2021; 26:molecules26020311. [PMID: 33435346 PMCID: PMC7828060 DOI: 10.3390/molecules26020311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 12/31/2020] [Accepted: 01/03/2021] [Indexed: 11/16/2022] Open
Abstract
Configurationally stable 5-aza[6]helicene (1) was envisaged as a promising scaffold for non-conventional ionic liquids (IL)s. It was prepared, purified, and separated into enantiomers by preparative HPLC on a chiral stationary phase. Enantiomerically pure quaternary salts of 1 with appropriate counterions were prepared and fully characterized. N-octyl-5-aza[6]helicenium bis triflimidate (2) was tested in very small quantities as a selector in achiral IL media to perform preliminary electrochemical enantiodifferentiation experiments on the antipodes of two different chiral probes. The new organic salt exhibited outstanding enantioselection performance with respect to these probes, thus opening the way to applications in the enantioselective electroanalysis of relevant bioactive molecules.
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Affiliation(s)
- Francesca Fontana
- Dipartimento di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi 5, 24044 Dalmine, Italy; (G.C.); (B.B.)
- CSGI Bergamo R.U., Viale Marconi 5, 24044 Dalmine, Italy
- Correspondence: (F.F.); (S.R.)
| | - Greta Carminati
- Dipartimento di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi 5, 24044 Dalmine, Italy; (G.C.); (B.B.)
| | - Benedetta Bertolotti
- Dipartimento di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi 5, 24044 Dalmine, Italy; (G.C.); (B.B.)
| | - Patrizia Romana Mussini
- Dipartimento di Chimica, Università Degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (P.R.M.); (S.A.); (S.G.)
| | - Serena Arnaboldi
- Dipartimento di Chimica, Università Degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (P.R.M.); (S.A.); (S.G.)
| | - Sara Grecchi
- Dipartimento di Chimica, Università Degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy; (P.R.M.); (S.A.); (S.G.)
| | - Roberto Cirilli
- Centro Nazionale per Il Controllo e la Valutazione dei Farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
| | - Laura Micheli
- Dipartimento di Scienze e Tecnologie Chimiche, Università Degli Studi di Roma Tor Vergata, Via della Ricerca Scientifica, 1, 00133 Roma, Italy;
| | - Simona Rizzo
- CNR Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, Via C. Golgi 19, 20133 Milano, Italy
- Correspondence: (F.F.); (S.R.)
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11
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Moneva Lorente P, Wallabregue A, Zinna F, Besnard C, Di Bari L, Lacour J. Synthesis and properties of chiral fluorescent helicene-BODIPY conjugates. Org Biomol Chem 2020; 18:7677-7684. [PMID: 32970060 DOI: 10.1039/d0ob01809k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of chiral fluorescent helicene-BODIPY conjugates was prepared by the regioselective formylation of aza[4]helicene precursors and then an efficient one-pot two-step BODIPY synthesis (13 examples, 28-82%). Fused conjugates exhibit absorption and fluorescence properties (ΦF 30-45%) in the red visible domain, and a CPL signature could be measured at 605 nm (glum ±5 × 10-4). Photophysical and electronic properties were investigated and rationalized through first principles.
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Affiliation(s)
- Pau Moneva Lorente
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
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12
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Cheng LC, Chen WC, Santhoshkumar R, Chao TH, Cheng MJ, Cheng CH. Synthesis of Quinolinium Salts from N
-Substituted Anilines, Aldehydes, Alkynes, and Acids: Theoretical Understanding of the Mechanism and Regioselectivity. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Lin-Chieh Cheng
- Department of Chemistry; National Tsing Hua University; 30013 Hsinchu Taiwan
| | - Wei-Chen Chen
- Department of Chemistry; National Tsing Hua University; 30013 Hsinchu Taiwan
| | | | - Tzu-Hsuan Chao
- Department of Chemistry; National Cheng Kung University; 70101 Tainan Taiwan
| | - Mu-Jeng Cheng
- Department of Chemistry; National Cheng Kung University; 70101 Tainan Taiwan
| | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; 30013 Hsinchu Taiwan
- Department of Chemistry; National Sun Yat-sen University; 80424 Kaohsiung Taiwan
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13
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Gosset A, Wilbraham L, Lachmanová ŠN, Sokolová R, Dupeyre G, Tuyèras F, Ochsenbein P, Perruchot C, de Rouville HPJ, Randriamahazaka H, Pospíšil L, Ciofini I, Hromadová M, Lainé PP. Electron Storage System Based on a Two-Way Inversion of Redox Potentials. J Am Chem Soc 2020; 142:5162-5176. [DOI: 10.1021/jacs.9b12762] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexis Gosset
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - Liam Wilbraham
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Theoretical Chemistry and Modelling, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Štěpánka Nováková Lachmanová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Romana Sokolová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Grégory Dupeyre
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - Fabien Tuyèras
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | - Philippe Ochsenbein
- Laboratoire de Cristallographie et Modélisation Moléculaire du Solide, Sanofi LGCR, 371 rue du Professeur Blayac, 34184 Montpellier Cedex 04 France
| | - Christian Perruchot
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
| | | | | | - Lubomír Pospíšil
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry of ASCR, v.v.i., Flemingovo n.2, 166 10 Prague, Czech Republic
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Theoretical Chemistry and Modelling, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Magdaléna Hromadová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
| | - Philippe P. Lainé
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France
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14
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Nojo W, Tamaoki H, Ishigaki Y, Katoono R, Fujiwara K, Fukushima T, Suzuki T. Molecular Wires with Controllable π-Delocalization Incorporating Redox-Triggered π-Conjugated Switching Units. Chempluschem 2020; 84:634-642. [PMID: 31944008 DOI: 10.1002/cplu.201800341] [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: 07/02/2018] [Indexed: 11/11/2022]
Abstract
A perfluorobiphenyl-2,2'-diyl dication and its corresponding dihydrophenanthrene-type electron donor are interconvertible upon two-electron transfer. Redox-triggered C-C bond-formation/cleavage caused a drastic change in the torsion angle of the biphenyl unit. Thus, π-delocalization ON/OFF switching was observed as a change in the UV absorption upon electrolysis of the linearly extended analogue with two phenylethynyl groups. A further extended π-system with a molecular length of ca. 3.5 nm, which has two switching units, was synthesized. Spectroelectrograms as well as voltammetric analyses showed that the two units act nearly simultaneously because of the very small inter-unit electrostatic repulsion in the tetracationic state. Thus, the present pair is a promising candidate as a switching unit for "molecular wires" with controllable π-delocalization, in which a higher ON/OFF ratio of delocalization could be realized by incorporating multiple switching units.
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Affiliation(s)
- Wataru Nojo
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hitomi Tamaoki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Kenshu Fujiwara
- Department of Life Science, Graduate School of Engineering, Akita University, Akita, 010-8502, Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
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15
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Abstract
Recent progress in chiroptical switches including on/off, amplification, and inversion of the chiral signals such as ECD and CPL in supramolecular assemblies is shown.
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Affiliation(s)
- Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS)
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Han-Xiao Wang
- Beijing National Laboratory for Molecular Science (BNLMS)
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Shuai Li
- Beijing National Laboratory for Molecular Science (BNLMS)
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS)
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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16
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Kolivoška V, Šebera J, Severa L, Mészáros G, Sokolová R, Gasior J, Kocábová J, Hamill JM, Pospíšil L, Hromadová M. Single Molecule Conductance of Electroactive Helquats: Solvent Effect. ChemElectroChem 2019. [DOI: 10.1002/celc.201901801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Viliam Kolivoška
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jakub Šebera
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Lukáš Severa
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16000 Prague Czech Republic
| | - Gábor Mészáros
- Research Centre for Natural Sciences, HAS Magyar tudósok krt. 2 H-1117 Budapest Hungary
| | - Romana Sokolová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jindřich Gasior
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jana Kocábová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Joseph M. Hamill
- School of ChemistryUniversity of Birmingham Edgbaston B15 2TT United Kingdom
| | - Lubomír Pospíšil
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16000 Prague Czech Republic
| | - Magdaléna Hromadová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
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17
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Dhbaibi K, Favereau L, Crassous J. Enantioenriched Helicenes and Helicenoids Containing Main-Group Elements (B, Si, N, P). Chem Rev 2019; 119:8846-8953. [DOI: 10.1021/acs.chemrev.9b00033] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kais Dhbaibi
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
- Faculty of Science of Gabès, University of Gabés, Zrig, 6072 Gabès Tunisia
| | - Ludovic Favereau
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
| | - Jeanne Crassous
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
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18
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Wojcik L, López I, Gauthier S, Cabon N, Le Poul P, Gloaguen F, Le Poul N. Insights into the radical-radical and radical-substrate dimerization processes for substituted phenylmethylenepyrans. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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19
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Jung J, Liu W, Kim S, Lee D. Redox-Driven Folding, Unfolding, and Refolding of Bis(tetrathiafulvalene) Molecular Switch. J Org Chem 2019; 84:6258-6269. [DOI: 10.1021/acs.joc.9b00541] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiyoung Jung
- Penn State Scranton, 120 Ridge View Drive, Dunmore, Pennsylvania 18512, United States
| | - Wenjun Liu
- Analytical Research & Development, Merck Research Laboratories, Merck & Company, Incorporation, Rahway, New Jersey 07065, United States
| | - Seyong Kim
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Dongwhan Lee
- Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
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20
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Rončević I, Jirásek M, Severa L, Reyes‐Gutierrez PE, Teplý F, Bednárová L, Hromadová M, Pospíšil L. Chiroptical Redox Switching of Tetra‐Cationic Derivatives of Azoniahelicenes. ChemElectroChem 2019. [DOI: 10.1002/celc.201900204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Igor Rončević
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Michael Jirásek
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Lukáš Severa
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Paul Eduardo Reyes‐Gutierrez
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Filip Teplý
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Lucie Bednárová
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
| | - Magdaléna Hromadová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3 18223 Prague Czech Rep
| | - Lubomír Pospíšil
- Department of Organic SynthesisInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 Prague 6 Czech Rep
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3 18223 Prague Czech Rep
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21
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Pospíšil L, Hromadová M, Sokolová R, Lanza C. Kinetics of radical dimerization. Simple evaluation of rate constant from convolution voltammetry and faradaic phase angle data. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Salerno F, Rice B, Schmidt JA, Fuchter MJ, Nelson J, Jelfs KE. The influence of nitrogen position on charge carrier mobility in enantiopure aza[6]helicene crystals. Phys Chem Chem Phys 2019; 21:5059-5067. [DOI: 10.1039/c8cp07603k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A computational study exploring the influence of the nitrogen position on charge carrier mobility in enantiopure aza[6]helicene crystals
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Affiliation(s)
- Francesco Salerno
- Department of Chemistry
- Imperial College London
- London W12 0BZ
- UK
- Centre for Plastic Electronics
| | - Beth Rice
- Centre for Plastic Electronics
- Imperial College London
- London SW7 2AZ
- UK
- Department of Physics
| | | | - Matthew J. Fuchter
- Department of Chemistry
- Imperial College London
- London W12 0BZ
- UK
- Centre for Plastic Electronics
| | - Jenny Nelson
- Centre for Plastic Electronics
- Imperial College London
- London SW7 2AZ
- UK
- Department of Physics
| | - Kim E. Jelfs
- Department of Chemistry
- Imperial College London
- London W12 0BZ
- UK
- Centre for Plastic Electronics
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23
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Shen C, Srebro-Hooper M, Weymuth T, Krausbeck F, Navarrete JTL, Ramírez FJ, Nieto-Ortega B, Casado J, Reiher M, Autschbach J, Crassous J. Redox-Active Chiroptical Switching in Mono- and Bis-Iron Ethynylcarbo[6]helicenes Studied by Electronic and Vibrational Circular Dichroism and Resonance Raman Optical Activity. Chemistry 2018; 24:15067-15079. [PMID: 30044521 DOI: 10.1002/chem.201803069] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/24/2018] [Indexed: 11/10/2022]
Abstract
Introducing one or two alkynyl-iron moieties onto a carbo[6]helicene results in organometallic helicenes (2 a,b) that display strong chiroptical activity combined with efficient redox-triggered switching. The neutral and oxidized forms have been studied in detail by electronic and vibrational circular dichroism, as well as by Raman optical activity (ROA) spectroscopy. The experimental results were analyzed and spectra were assigned with the help of first-principles calculations. In particular, a recently developed method for ROA calculations under resonance conditions has been used to study the intricate resonance effects on the ROA spectrum of mono-iron ethynylhelicene 2 a.
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Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes UMR 6226, CNRS Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Monika Srebro-Hooper
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Thomas Weymuth
- Laboratorium für Physikalische Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093, Zürich, Switzerland
| | - Florian Krausbeck
- Laboratorium für Physikalische Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093, Zürich, Switzerland
| | - Juan T López Navarrete
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Francisco J Ramírez
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Belén Nieto-Ortega
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Markus Reiher
- Laboratorium für Physikalische Chemie, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093, Zürich, Switzerland
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, CNRS Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
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24
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Bouvier R, Durand R, Favereau L, Srebro‐Hooper M, Dorcet V, Roisnel T, Vanthuyne N, Vesga Y, Donnelly J, Hernandez F, Autschbach J, Trolez Y, Crassous J. Helicenes Grafted with 1,1,4,4‐Tetracyanobutadiene Moieties: π‐Helical Push–Pull Systems with Strong Electronic Circular Dichroism and Two‐Photon Absorption. Chemistry 2018; 24:14484-14494. [DOI: 10.1002/chem.201802763] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Romain Bouvier
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Raphaël Durand
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Ludovic Favereau
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Monika Srebro‐Hooper
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Vincent Dorcet
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Thierry Roisnel
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Nicolas Vanthuyne
- Aix Marseille Université CNRS Centrale Marseille, iSm2 13007 Marseille France
| | - Yuly Vesga
- Department of Chemistry, The College of Optics and Photonics, CREOL University of Central Florida Orlando FL 32816-2366 USA
| | - Julie Donnelly
- Department of Chemistry, The College of Optics and Photonics, CREOL University of Central Florida Orlando FL 32816-2366 USA
| | - Florencio Hernandez
- Department of Chemistry, The College of Optics and Photonics, CREOL University of Central Florida Orlando FL 32816-2366 USA
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260 USA
| | - Yann Trolez
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
| | - Jeanne Crassous
- Université Rennes Ecole Nationale Supérieure de Chimie de Rennes CNRS, ISCR–UMR6226 35000 Rennes France
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25
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Homberg A, Brun E, Zinna F, Pascal S, Górecki M, Monnier L, Besnard C, Pescitelli G, Di Bari L, Lacour J. Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles. Chem Sci 2018; 9:7043-7052. [PMID: 30310624 PMCID: PMC6137439 DOI: 10.1039/c8sc02935k] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/30/2018] [Indexed: 11/21/2022] Open
Abstract
A series of chiral fluorescent macrocycles display a remarkable combination of both +/– ECD and strong on/off CPL reversible switching upon cation binding and displacement.
Straightforward synthesis and resolution of a series of chiral fluorescent macrocycles are presented, together with their electronic circular dichroism (ECD), strong excimer fluorescence (EF, λ 300 to 650 nm) and allied highly circularly polarized luminescence (CPL, glum up to 1.7 × 10–2). The ECD, EF and CPL responses are strongly affected by the presence of metal ions (Na+, Ba2+) thanks to deep conformational changes. While ECD signals can be almost completely reversibly inverted upon the complexation/decomplexation of metal ions in a typical binary response, CPL signals are reversibly quenched concomitantly. The designed macrocycles display thus a remarkable combination of both +/– ECD and on/off CPL reversible switching.
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Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Elodie Brun
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Francesco Zinna
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Simon Pascal
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Luc Monnier
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Céline Besnard
- Laboratoire de Cristallographie , University of Geneva , Quai Ernest Ansermet 24 , 1211 Geneva 4 , Switzerland
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
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26
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Tanaka H, Inoue Y, Mori T. Circularly Polarized Luminescence and Circular Dichroisms in Small Organic Molecules: Correlation between Excitation and Emission Dissymmetry Factors. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800015] [Citation(s) in RCA: 349] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hiroki Tanaka
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; 2-1 Yamada-oka Suita 565-0871 Japan
| | - Yoshihisa Inoue
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; 2-1 Yamada-oka Suita 565-0871 Japan
| | - Tadashi Mori
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; 2-1 Yamada-oka Suita 565-0871 Japan
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27
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Hellou N, Macé A, Martin C, Dorcet V, Roisnel T, Jean M, Vanthuyne N, Berrée F, Carboni B, Crassous J. Synthesis of Carbo[6]helicene Derivatives Grafted with Amino or Aminoester Substituents from Enantiopure [6]Helicenyl Boronates. J Org Chem 2017; 83:484-490. [PMID: 29224347 DOI: 10.1021/acs.joc.7b02619] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Enantiopure carbo[6]helicenyl boronates were synthesized using a photocyclization reaction as the key step. These compounds were further converted to various amino derivatives using copper-catalyzed azidation or amination and reductive alkylation of benzylazide by a helicenyl dichloroborane. Asymmetric Petasis condensation with glyoxylic acid and morpholine controlled by the helical chirality afforded the corresponding amino esters.
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Affiliation(s)
- Nora Hellou
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Aurélie Macé
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Clothilde Martin
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Marion Jean
- CNRS, Centrale Marseille, iSm2, Aix Marseille Univ , Marseille, France
| | - Nicolas Vanthuyne
- CNRS, Centrale Marseille, iSm2, Aix Marseille Univ , Marseille, France
| | - Fabienne Berrée
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Bertrand Carboni
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
| | - Jeanne Crassous
- Univ Rennes, CNRS, ISCR [(Institut des Sciences Chimiques de Rennes)] - UMR 6226 , F-35000, Rennes, France
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28
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Wojcik L, Michaud F, Gauthier S, Cabon N, Le Poul P, Gloaguen F, Le Poul N. Reversible Redox Switching of Chromophoric Phenylmethylenepyrans by Carbon-Carbon Bond Making/Breaking. J Org Chem 2017; 82:12395-12405. [PMID: 29058426 DOI: 10.1021/acs.joc.7b02199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Electrochromic organic systems that can undergo substantial variation of their optical properties upon electron stimulus are of high interest for the development of functional materials. In particular, devices based on radical dimerization are appropriate because of the effectiveness and speed of carbon-carbon bond making/breaking. Phenylmethylenepyrans are organic chromophores which are well suited for such purposes since their oxidation leads to the reversible formation of bispyrylium species by radical dimerization. In this paper, we show that the redox and spectroscopic properties of phenylmethylenepyrans can be modulated by adequate variation of the substituting group on the para position of the phenyl moiety, as supported by DFT calculations. This redox switching is reversible over several cycles and is accompanied by a significant modification of the UV-vis spectrum of the chromophore, as shown by time-resolved spectroelectrochemistry in thin-layer conditions.
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Affiliation(s)
- Laurianne Wojcik
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
| | - François Michaud
- Service PIMM-DRX, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest29238 Cedex, France
| | - Sébastien Gauthier
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Nolwenn Cabon
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Pascal Le Poul
- IUT de Lannion, CNRS UMR 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1 , Rue Edouard Branly, 22300 Lannion, France
| | - Frederic Gloaguen
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
| | - Nicolas Le Poul
- Laboratoire CEMCA, CNRS UMR 6521, Université de Bretagne Occidentale , 6 Avenue Le Gorgeu, CS 93837, Brest 29238 Cedex, France
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Yang Y, Rice B, Shi X, Brandt JR, Correa da Costa R, Hedley GJ, Smilgies DM, Frost JM, Samuel IDW, Otero-de-la-Roza A, Johnson ER, Jelfs KE, Nelson J, Campbell AJ, Fuchter MJ. Emergent Properties of an Organic Semiconductor Driven by its Molecular Chirality. ACS NANO 2017; 11:8329-8338. [PMID: 28696680 DOI: 10.1021/acsnano.7b03540] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chiral molecules exist as pairs of nonsuperimposable mirror images; a fundamental symmetry property vastly underexplored in organic electronic devices. Here, we show that organic field-effect transistors (OFETs) made from the helically chiral molecule 1-aza[6]helicene can display up to an 80-fold difference in hole mobility, together with differences in thin-film photophysics and morphology, solely depending on whether a single handedness or a 1:1 mixture of left- and right-handed molecules is employed under analogous fabrication conditions. As the molecular properties of either mirror image isomer are identical, these changes must be a result of the different bulk packing induced by chiral composition. Such underlying structures are investigated using crystal structure prediction, a computational methodology rarely applied to molecular materials, and linked to the difference in charge transport. These results illustrate that chirality may be used as a key tuning parameter in future device applications.
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Affiliation(s)
| | | | | | | | - Rosenildo Correa da Costa
- Faculty of Computing, Engineering and Science, University of South Wales , Cemetery Road, Glyntaff, Pontypridd CF37 4BD, United Kingdom
| | - Gordon J Hedley
- University of St. Andrews , North Haugh, Fife KY16 9SS, United Kingdom
| | - Detlef-M Smilgies
- Cornell High Energy Synchrotron Source (CHESS), Wilson Laboratory, Cornell University , Ithaca, New York 14853, United States
| | - Jarvist M Frost
- Department of Chemistry, University of Bath , Bath BA2 7AY, United Kingdom
- Department of Materials, Imperial College London , London SW7 2AZ, United Kingdom
| | - Ifor D W Samuel
- University of St. Andrews , North Haugh, Fife KY16 9SS, United Kingdom
| | - Alberto Otero-de-la-Roza
- Department of Chemistry, University of British Columbia, Okanagan , 3247 University Way, Kelowna, British Columbia V1V 1V7, Canada
| | - Erin R Johnson
- Department of Chemistry, Dalhousie University , Halifax, Nova Scotia B3H 4R2, Canada
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