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Chen K, Liu Y, Wang Z, Hu S, Zhao Y, Wang W, Liu G, Wang Z, Jiang W. Longitudinal Extension of Double π-Helix Enables Near-Infrared Amplified Dissymmetry and Chiroptical Response. J Am Chem Soc 2024; 146:13499-13508. [PMID: 38696816 DOI: 10.1021/jacs.4c02914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
Near-infrared (NIR) circularly polarized light absorbing or emitting holds great promise for highly sensitive and precise bioimaging, biosensing, and photodetectors. Aiming at designing NIR chiral molecular systems with amplified dissymmetry and robust chiroptical response, herein, we present a series of double π-helical dimers with longitudinally extended π-entwined substructures via Ullmann or Yamamoto homocoupling reactions. Circular dichroism (CD) spectra revealed an approximate linear bathochromic shift with the rising number of naphthalene subunits, indicating a red to NIR chiroptical response. Particularly, the terrylene diimide-entwined dimers exhibited the strongest CD intensities, with the maximal |Δε| reaching up to 393 M-1 cm-1 at 666 nm for th-TDI[2]; and a record-high chiroptical response (|ΔΔε|) between the neutral and dianionic species of 520 M-1 cm-1 at 833 nm for th-TDI[2]Cl was achieved upon further reduction to its dianionic state. Time-dependent density functional theory (TDDFT) calculations suggested that the pronounced intensification of the CD spectra originated from a simultaneous enhancement of both electric (μ) and magnetic (m) transition dipole moments, ultimately leading to an overall increase in the rotatory strength (R). Notably, the circularly polarized luminescence (CPL) brightness (BCPL) reached 77 M-1 cm-1 for th-TDI[2]Cl, among the highest values reported for NIR-CPL emitters. Furthermore, all chiral dianions exhibited excellent air stability under ambient conditions with half-life times of up to 10 days in N-methylpyrrolidone (NMP), which is significant for future biological applications and chiroptic switches.
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Affiliation(s)
- Kai Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yujian Liu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhaolong Wang
- State Key Laboratory of Molecular Reaction Dynamics and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shunlong Hu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yilun Zhao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wei Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Guogang Liu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhaohui Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wei Jiang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
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Bao ST, Louie S, Jiang H, Jiang Q, Sun S, Steigerwald ML, Nuckolls C, Jin Z. Near-Infrared, Organic Chiroptic Switch with High Dissymmetry Factors. J Am Chem Soc 2024; 146:51-56. [PMID: 38110244 DOI: 10.1021/jacs.3c10578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Here we unveil a chiral molecular redox switch derived from PDI-based twistacenes─chPDI[2] that has the remarkable attributes of high-intensity and a broadband chiral response. This material exhibits facile, stable, and reversible multistate chiroptical switching behavior over a broad active wavelength range close to 700 nm, encompassing ultraviolet, visible, and near-infrared regions. Upon reduction, chPDI[2] exhibits a substantial increase in the amplitude of its circular dichroic response, with an outstanding |ΔΔε| > 300 M-1 cm-1 and a high dissymmetry factor of 3 × 10-2 at 960 nm. DFT calculations suggest that the long wavelength CD signal for doubly reduced chPDI[2] originates from excitation of the PDI backbone to the π* orbital of the bridging alkene. Importantly, the dimer's molecular contortion facilitates ionic diffusion, enabling chiral switching in solid state films. The high dissymmetry factors and near-infrared response establish chPDI[2] as a unique chiroptic switch.
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Affiliation(s)
- Si Tong Bao
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Shayan Louie
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Haoyu Jiang
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Qifeng Jiang
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Shantao Sun
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Michael L Steigerwald
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Zexin Jin
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang 310030, China
- School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
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3
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Bílek J, Koval D, Sázelová P, Šolínová V, Severa L, Gutiérrez PER, Teplý F, Kašička V. The separation of the enantiomers of diquats by capillary electrophoresis using randomly sulfated cyclodextrins as chiral selectors. J Sep Sci 2023; 46:e2300417. [PMID: 37528727 DOI: 10.1002/jssc.202300417] [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: 06/09/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/03/2023]
Abstract
Diquats, derivatives of the widely used herbicide diquat, represent a new class of functional organic molecules. A combination of their special electrochemical properties and axial chirality could potentially result in their important applications in supramolecular chemistry, chiral catalysis, and chiral analysis. However, prior to their practical applications, the diquats have to be prepared in enantiomerically pure forms and the enantiomeric purity of their P- and M-isomers has to be checked. Hence, a chiral capillary electrophoresis (CE) method has been developed and applied for separation of P- and M-enantiomers of 11 new diquats. Fast and better than baseline CE separations of enantiomers of all 11 diquats within a short time 5-7 min were achieved using acidic buffer, 22 mM NaOH, 35 mM H3 PO4 , pH 2.5, as a background electrolyte, and 6 mM randomly sulfated α-, β-, and γ-cyclodextrins as chiral selectors. The most successful selector was sulfated γ-cyclodextrin, which baseline separated the enantiomers of all 11 diquats, followed by sulfated β-cyclodextrin and sulfated α-cyclodextrin, which baseline separated enantiomers of 10 and nine diquats, respectively. Using this method, a high enantiopurity degree of the isolated P- and M-enantiomers of three diquats with a defined absolute configuration was confirmed and their migration order was identified.
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Affiliation(s)
- Jan Bílek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Dušan Koval
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Petra Sázelová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Veronika Šolínová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Lukáš Severa
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Paul E Reyes Gutiérrez
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague 6, Czech Republic
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Bastien G, Nováková Lachmanová Š, Tarábek J, Rončević I, Hromadová M, Kaleta J, Pospíšil L. Electrochemical test of flexibility of pyridine terminated molecular rods. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Llobat A, Escorihuela J, Ramírez de Arellano C, Fustero S, Medio-Simón M. Intramolecular rhodium-catalysed [2 + 2 + 2] cycloaddition of linear chiral N-bridged triynes: straightforward access to fused tetrahydroisoquinoline core. Org Biomol Chem 2022; 20:2433-2445. [PMID: 35274117 DOI: 10.1039/d2ob00340f] [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
A route for the preparation of merged symmetrical tetrahydroisoquinolines with central chirality through a rhodium-catalyzed intramolecular [2 + 2 + 2] cycloaddition involving enantiopure triynes as substrates is described. The results show that linear triynes lacking a 3-atom tether can undergo efficient cyclisation. The N-tethered 1,7,13-triynes used in our approach were easily prepared from readily accessible chiral homopropargyl amides, the basic building blocks in our approach, which were efficiently obtained by diastereoselective addition of propargyl magnesium bromide to Ellman imines. Additional substitution at the benzene rings could be attained when substituted triynes at the terminal triple bonds were employed, giving access to more complex tetrahydroisoquinolines after the rhodium-catalyzed intramolecular [2 + 2 + 2] cycloaddition. Among the different transition-metal catalysts, the Wilkinson complex (RhCl(PPh3)3) afforded higher yields in the cyclisation of linear triynes; however, triynes bearing a Br substituent at the terminal positions underwent the cyclisation more efficiently in the presence of [RhCl(CO)2]2.
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Affiliation(s)
- Alberto Llobat
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Jorge Escorihuela
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Santos Fustero
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Mercedes Medio-Simón
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
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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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7
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De Simone BC, Alberto ME, Marino T, Russo N, Toscano M. The Contribution of Density Functional Theory to the Atomistic Knowledge of Electrochromic Processes. Molecules 2021; 26:molecules26195793. [PMID: 34641338 PMCID: PMC8510163 DOI: 10.3390/molecules26195793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/08/2021] [Accepted: 09/19/2021] [Indexed: 11/29/2022] Open
Abstract
In this review, we provide a brief overview of the contribution that computational studies can offer to the elucidation of the electronic mechanisms responsible for the electrochromism phenomenon, through the use of the density functional theory (DFT) and its time-dependent formulation (TDDFT). Although computational studies on electrochromic systems are not as numerous as those for other physico-chemical processes, we will show their reliability and ability to predict structures, excitation energies, and redox potentials. The results confirm that these methods not only help in the interpretation of experimental data but can also be used for the rational design of molecules with interesting electrochromic properties to be initiated for synthesis and experimental characterization.
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Affiliation(s)
- Bruna Clara De Simone
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Marta Erminia Alberto
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Tiziana Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
| | - Nino Russo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
- Correspondence:
| | - Marirosa Toscano
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Rende, CS, Italy; (B.C.D.S.); (M.E.A.); (T.M.); (M.T.)
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8
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Kos M, Rodríguez R, Storch J, Sýkora J, Caytan E, Cordier M, Císařová I, Vanthuyne N, Williams JAG, Žádný J, Církva V, Crassous J. Enantioenriched Ruthenium-Tris-Bipyridine Complexes Bearing One Helical Bipyridine Ligand: Access to Fused Multihelicenic Systems and Chiroptical Redox Switches. Inorg Chem 2021; 60:11838-11851. [PMID: 34297562 DOI: 10.1021/acs.inorgchem.1c01379] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and photophysical and chiroptical properties of novel aza[n]helicenes (6a-d, 10a,b, n = 4-7) substituted with one or two 2-pyridyl groups are described. The preparation was performed via an adapted Mallory reaction using aromatic imines as precursors. The obtained novel class of helical 2,2'-bipyridine ligands was then coordinated to Ru(bipy)22+ units, thus affording the first diastereomerically and enantiomerically pure [RuL(bipy)2]2+ (11a,c, L = 6a,c) or [Ru2L'(bipy)4]4+ (12, L' = 10b) complexes. The topology and stereochemistry of these novel metal-based helical architectures were studied in detail, notably using X-ray crystallography. Interestingly, the coordination to ruthenium(II) enabled the preparation of fused multihelical systems incorporating aza- and ruthena-helicenes within the same scaffold. The photophysical, chiroptical, and redox properties of these complexes were examined in detail, and efficient redox-triggered chiroptical switching activity was evidenced.
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Affiliation(s)
- Martin Kos
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague 6, Czech Republic
| | - Rafael Rodríguez
- Univ Rennes CNRS, , ISCR-UMR 6226 ScanMat-UMS 2001, 35000 Rennes, France
| | - Jan Storch
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague 6, Czech Republic
| | - Jan Sýkora
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague 6, Czech Republic
| | - Elsa Caytan
- Univ Rennes CNRS, , ISCR-UMR 6226 ScanMat-UMS 2001, 35000 Rennes, France
| | - Marie Cordier
- Univ Rennes CNRS, , ISCR-UMR 6226 ScanMat-UMS 2001, 35000 Rennes, France
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2, UMR 7313 Marseille, France
| | | | - Jaroslav Žádný
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague 6, Czech Republic
| | - Vladimír Církva
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague 6, Czech Republic
| | - Jeanne Crassous
- Univ Rennes CNRS, , ISCR-UMR 6226 ScanMat-UMS 2001, 35000 Rennes, France
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Tani F, Narita M, Murafuji T. Helicene Radicals: Molecules Bearing a Combination of Helical Chirality and Unpaired Electron Spin. Chempluschem 2020; 85:2093-2104. [DOI: 10.1002/cplu.202000452] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/19/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Fumito Tani
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Masahiro Narita
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation Yamaguchi University Yamaguchi 753-8512 Japan
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10
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Vacek J, Zadny J, Storch J, Hrbac J. Chiral Electrochemistry: Anodic Deposition of Enantiopure Helical Molecules. Chempluschem 2020; 85:1954-1958. [DOI: 10.1002/cplu.202000389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/22/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Jan Vacek
- Department of Medical Chemistry and Biochemistry Faculty of Medicine and Dentistry Palacky University Hnevotinska 3 77515 Olomouc Czech Republic
| | - Jaroslav Zadny
- Institute of Chemical Process Fundamentals Czech Academy of Sciences Rozvojova 135 16502 Prague 6 Czech Republic
| | - Jan Storch
- Institute of Chemical Process Fundamentals Czech Academy of Sciences Rozvojova 135 16502 Prague 6 Czech Republic
| | - Jan Hrbac
- Institute of Chemistry Masaryk University Kamenice 5 72500 Brno Czech Republic
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He B, Zhou H. Theoretical Study on Drum-Shaped Polymers (1,3,5-Triazine) 2n Composed of Nonplanar π-Extended Polymerization Units. ACS OMEGA 2020; 5:11618-11628. [PMID: 32478252 PMCID: PMC7254778 DOI: 10.1021/acsomega.0c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
A nonplanar extended π-system can be found not only in compounds formed by multiple ortho-fused benzenes, such as helicenes and corannulenes, but also in compounds formed by bonding of atoms on the large π-extended rings. (1,3,5-Triazine)2n (n ≥ 3) are the latter type of compounds that are characterized by monomer units composed entirely of a 1,3,5-triazine core (general formula: C3N3). The first seven polymers (C3N3)2n (n = 3-9) with a drum shape were investigated computationally. Analyses of natural bonding orbitals and atoms in molecules were applied to investigate the bonding properties. In contrast to the planar structure of the 1,3,5-triazine core, the monomer units in (C3N3)2n (n = 3-9) are transformed from their planar π-system to a warped one. Similar to properties of the nonplanar π-system in [n]helicenes and corannulenes, the nonplanar heterocyclic aromatic configuration of the polymerization units is the determinant of the physical and chemical properties of these polymers. The discovery of nonplanar heterocyclic aromatic structures opens up a broad prospect for the study of azacyclic compounds. The results will be the supplement to the study of heterocyclic helicenes and corannulenes.
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Reyes-Gutiérrez PE, Amatov TT, Švec P, Císařová I, Šaman D, Pohl R, Teplý F, Pospíšil L. Helquats as Promoters of the Povarov Reaction: Synthesis of 1,2,3,4-Tetrahydroquinoline Scaffolds Catalyzed by Helicene-Viologen Hybrids. Chempluschem 2020; 85:2212-2218. [PMID: 32400944 DOI: 10.1002/cplu.202000151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/29/2020] [Indexed: 01/10/2023]
Abstract
Helquats (HQs) are structurally linked to helicenes and viologens, and they represent an attractive field of research in chemistry and medicinal chemistry. In the present work they were used as catalysts for the synthesis of 1,2,3,4-tetrahydroquinolines in good yields by the Povarov reaction. The substrate scope and the capability of different helquats to promote Povarov reactions are demonstrated. Studies to elucidate mechanistic details revealed that helquats act as single-electron transfer oxidants through a cation-radical mechanism. The screening of the catalytic activity of HQs confirmed that an active HQ must have a LUMO energy below -8.67 eV and the standard redox potential higher (less negative) than -1.2 V vs. the ferrocene/ferrocenium redox couple.
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Affiliation(s)
- Paul E Reyes-Gutiérrez
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Tynchtyk T Amatov
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Pavel Švec
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science, Charles University, Hlavova 2030/8, 12843, Prague 2, Czech Republic
| | - David Šaman
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Radek Pohl
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Filip Teplý
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic
| | - Lubomír Pospíšil
- Department of Organic Synthesis, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000, Prague 6, Czech Republic.,Department of Electrochemistry at Nanoscale, J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223, Prague, Czech Republic
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13
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Chang H, Liu H, Dmitrieva E, Chen Q, Ma J, He P, Liu P, Popov AA, Cao XY, Wang XY, Zou Y, Narita A, Müllen K, Peng H, Hu Y. Furan-containing double tetraoxa[7]helicene and its radical cation. Chem Commun (Camb) 2020; 56:15181-15184. [PMID: 33216069 DOI: 10.1039/d0cc06970a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An unprecedented furan-based double oxa[7]helicene 1 was achieved, featuring a stable twisted conformation with π-overlap at both helical ends. The excellent conformational stability allowed for optical resolution of 1, which provided a pair of enantiomers exhibiting pronounced mirror-imaged circular dichroism and circularly polarized luminescence activity. The radical cation of 1 was obtained by chemical oxidation as evidenced by UV-Vis-NIR absorption, electron paramagnetic resonance spectroscopy and in situ spectroelectrochemistry. The present work is the starting point for the investigation of open-shell oxahelicenes.
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Affiliation(s)
- Hao Chang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
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14
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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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15
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Gaedke M, Witte F, Anhäuser J, Hupatz H, Schröder HV, Valkonen A, Rissanen K, Lützen A, Paulus B, Schalley CA. Chiroptical inversion of a planar chiral redox-switchable rotaxane. Chem Sci 2019; 10:10003-10009. [PMID: 32055357 PMCID: PMC7003955 DOI: 10.1039/c9sc03694f] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/04/2019] [Indexed: 12/16/2022] Open
Abstract
A tetrathiafulvalene (TTF)-containing crown ether macrocycle with C s symmetry was designed to implement planar chirality into a redox-active [2]rotaxane. The directionality of the macrocycle atom sequence together with the non-symmetric axle renders the corresponding [2]rotaxane mechanically planar chiral. Enantiomeric separation of the [2]rotaxane was achieved by chiral HPLC. The electrochemical properties - caused by the reversible oxidation of the TTF - are similar to a non-chiral control. Reversible inversion of the main band in the ECD spectra for the individual enantiomers was observed after oxidation. Experimental evidence, conformational analysis and DFT calculations of the neutral and doubly oxidised species indicate that mainly electronic effects of the oxidation are responsible for the chiroptical switching. This is the first electrochemically switchable rotaxane with a reversible inversion of the main ECD band.
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Affiliation(s)
- Marius Gaedke
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
| | - Felix Witte
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
| | - Jana Anhäuser
- Kekulé-Institut für Organische Chemie und Biochemie , Universität Bonn , Gerhard-Domagk-Str. 1 , 53121 Bonn , Germany
| | - Henrik Hupatz
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
| | - Hendrik V Schröder
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
| | - Arto Valkonen
- University of Jyvaskyla , Department of Chemistry , P.O. Box 35 , 40014 Jyväskylä , Finland
| | - Kari Rissanen
- University of Jyvaskyla , Department of Chemistry , P.O. Box 35 , 40014 Jyväskylä , Finland
| | - Arne Lützen
- Kekulé-Institut für Organische Chemie und Biochemie , Universität Bonn , Gerhard-Domagk-Str. 1 , 53121 Bonn , Germany
| | - Beate Paulus
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
| | - Christoph A Schalley
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany .
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16
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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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17
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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.201900761] [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]
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 E. 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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18
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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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19
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Chen S, Ge Z, Jia Q, Wang K, Gan L, Hu Z. The Preparation of Enantiopure [6]‐ and [7]Helicenes from Binaphthanol. Chem Asian J 2019; 14:1462-1466. [DOI: 10.1002/asia.201900210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/14/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Shaojin Chen
- State Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology 53, Zhengzhou Rd. Qingdao Shandong P. R. China
| | - Zhaohai Ge
- State Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology 53, Zhengzhou Rd. Qingdao Shandong P. R. China
| | - Qiang Jia
- State Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology 53, Zhengzhou Rd. Qingdao Shandong P. R. China
| | - Kun‐Peng Wang
- State Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology 53, Zhengzhou Rd. Qingdao Shandong P. R. China
| | - Li‐Hua Gan
- School of Chemistry and Chemical EngineeringSouthwest University, Beibei Chongqing 400715 China
| | - Zhi‐Qiang Hu
- State Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology 53, Zhengzhou Rd. Qingdao Shandong P. R. China
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20
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Affiliation(s)
- Prince Ravat
- Institute of Organic ChemistryUniversity of Würzburg Am Hubland D-97074 Würzburg Germany
| | - Tomáš Šolomek
- Department of ChemistryUniversity of Basel St. Johanns-Ring 19 CH-4056 Basel Switzerland
| | - Michal Juríček
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
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21
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Pointillart F, Ou-Yang JK, Fernandez Garcia G, Montigaud V, Flores Gonzalez J, Marchal R, Favereau L, Totti F, Crassous J, Cador O, Ouahab L, Le Guennic B. Tetrathiafulvalene-Based Helicene Ligand in the Design of a Dysprosium Field-Induced Single-Molecule Magnet. Inorg Chem 2018; 58:52-56. [PMID: 30550268 PMCID: PMC6400426 DOI: 10.1021/acs.inorgchem.8b02830] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The design of a coordination
complex that involves a ligand combining both a tetrathiafulvalene
core and a helicene fragment was achieved thanks to the reaction between
the new 2-{1-[2-methyl[6]helicene]-4,5-[4,5-bis(propylthio)tetrathiafulvalenyl]-1H-benzimidazol-2-yl}pyridine ligand (L) and
the Dy(hfac)3·2H2O metalloprecursor. Magnetic
investigations showed field-induced single-molecule-magnet (SMM) behavior
under an applied magnetic field of 1000 Oe for [Dy(hfac)3(L)]·0.5CH2Cl2, while experimentally
oriented single-crystal magnetic measurements allowed for determination
of the magnetic anisotropy orientation. The magnetic behavior was
rationalized through ab initio
CASSCF/SI-SO calculations. This redox-active chiral-field-induced
SMM paves the way for the design of switchable-multiproperty SMMs. A redox-active chiral-field-induced single-molecule
magnet was achieved through a coordination reaction of the [Dy(hfac)3] precursor to a ligand that combines a redox-active tetrathiafulvalene
core and a chiral carbo[6]helicene fragment. This multiproperty system
was characterized using X-ray crystallography, magnetism, and ab initio
calculations.
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Affiliation(s)
- Fabrice Pointillart
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Jiang-Kun Ou-Yang
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Guglielmo Fernandez Garcia
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France.,Department of Chemistry "Ugo Schiff" and INSTM RU , University of Florence , 50019 Sesto Fiorentino , Italy
| | - Vincent Montigaud
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Jessica Flores Gonzalez
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Rémi Marchal
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Ludovic Favereau
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Federico Totti
- Department of Chemistry "Ugo Schiff" and INSTM RU , University of Florence , 50019 Sesto Fiorentino , Italy
| | - Jeanne Crassous
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Olivier Cador
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Lahcène Ouahab
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 , 35000 Rennes , France
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22
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Arnaboldi S, Cauteruccio S, Grecchi S, Benincori T, Marcaccio M, Biroli AO, Longhi G, Licandro E, Mussini PR. Thiahelicene-based inherently chiral films for enantioselective electroanalysis. Chem Sci 2018; 10:1539-1548. [PMID: 30809372 PMCID: PMC6357859 DOI: 10.1039/c8sc03337d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/21/2018] [Indexed: 11/28/2022] Open
Abstract
Enantiopure inherently chiral films with helicoidal stereogenicity of outstanding enantiodiscrimination potentialities for chiral redox probes and as spin filters.
Chiral electroanalysis could be regarded as the highest recognition degree in electrochemical sensing, implying the ability to discriminate between specular images of an electroactive molecule, particularly in terms of significant peak potential difference. A groundbreaking strategy was recently proposed, based on the use of “inherently chiral” molecular selectors, with chirality and key functional properties originating from the same structural element. Large differences in peak potentials have been observed for the enantiomers of different chiral molecules, also of applicative interest, using different selectors, all of them based on atropisomeric biheteroaromatic scaffolds of axial stereogenicity. However, helicene systems also provide inherently chiral building blocks with attractive features. In this paper the enantiodiscrimination performances of enantiopure inherently chiral films obtained by electrooxidation of a thiahelicene monomer with helicoidal stereogenicity are presented for the first time. The outstanding potentialities of this novel approach are evaluated towards chiral probes with different chemical nature and bulkiness, in comparison with a representative case of the so far exploited class of inherently chiral selectors with axial stereogenicity. It is also verified that the high enantiodiscrimination ability holds as well for electron spins, as for atropisomeric selectors.
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Affiliation(s)
- Serena Arnaboldi
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi, 19 , 20133 Milano , Italy . ; ;
| | - Silvia Cauteruccio
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi, 19 , 20133 Milano , Italy . ; ;
| | - Sara Grecchi
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi, 19 , 20133 Milano , Italy . ; ;
| | - Tiziana Benincori
- Dipartimento di Scienza e Alta Tecnologia , Università degli Studi dell'Insubria , Via Valleggio 11 , 22100 Como , Italy
| | - Massimo Marcaccio
- Dipartimento di Chimica "Giacomo Ciamician" , Alma Mater Studiorum Università di Bologna , Via Selmi 2 , 40126 Bologna , Italy
| | - Alessio Orbelli Biroli
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) , SmartMatLab Centre , Via Golgi, 19 , 20133 Milano , Italy
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale , Università degli Studi di Brescia , Viale Europa 11 , 25123 Brescia , Italy
| | - Emanuela Licandro
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi, 19 , 20133 Milano , Italy . ; ;
| | - Patrizia Romana Mussini
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi, 19 , 20133 Milano , Italy . ; ;
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23
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Viglianisi C, Biagioli C, Lippi M, Pedicini M, Villani C, Franzini R, Menichetti S. Synthesis of Heterohelicenes by a Catalytic Multi-Component Povarov Reaction. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801489] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia, 3-13 50019 Sesto Fiorentino Italy
| | - Chiara Biagioli
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia, 3-13 50019 Sesto Fiorentino Italy
| | - Martina Lippi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia, 3-13 50019 Sesto Fiorentino Italy
- Department of Chemistry; Materials and Chemical Engineering “G. Natta”; Milan Polytechnic; via Mancinelli 7 20131 Milano Italy
| | - Maria Pedicini
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia, 3-13 50019 Sesto Fiorentino Italy
| | - Claudio Villani
- Department of Chemistry and Technology of Drugs; University “La Sapienza”; P.le A. Moro 5 - 00185 Roma Italy
| | - Roberta Franzini
- Department of Chemistry and Technology of Drugs; University “La Sapienza”; P.le A. Moro 5 - 00185 Roma Italy
| | - Stefano Menichetti
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia, 3-13 50019 Sesto Fiorentino Italy
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24
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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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25
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Talele HR, Koval D, Severa L, Reyes-Gutiérrez PE, Císařová I, Sázelová P, Šaman D, Bednárová L, Kašička V, Teplý F. Diquats with Robust Chirality: Facile Resolution, Synthesis of Chiral Dyes, and Application as Selectors in Chiral Analysis. Chemistry 2018; 24:7601-7604. [PMID: 29575285 DOI: 10.1002/chem.201800369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Indexed: 12/25/2022]
Abstract
Diquats with extremely high racemization barriers with ΔG≠theor of 233 kJ mol-1 at 180 °C are described. Reported configurational robustness is due to a combination of two structural features: the rigid o-xylylene tether connecting the nitrogen atoms and the presence of two substituents in the bay region of the bipyridinium scaffold. The straightforward synthesis of diquats, plus facile resolution and derivatization make them attractive for chiral application studies. This is demonstrated by: 1) synthesis of the first non-racemic diquat dyes with pronounced chiroptical properties, and 2) capability of diquats to interact stereospecifically with chiral molecules. This suggests potential for diquat derivatives to be used as chiral selectors in separation methods.
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Affiliation(s)
- Harish R Talele
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Dušan Koval
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Lukáš Severa
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Paul E Reyes-Gutiérrez
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Charles University, Hlavova 2030/8, 128 43, Prague 2, Czech Republic
| | - Petra Sázelová
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - David Šaman
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Lucie Bednárová
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of Sciences, Flemingovo nam. 542/2, 166 10, Prague 6, Czech Republic
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26
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Li G, Xu L, Zhang W, Zhou K, Ding Y, Liu F, He X, He G. Narrow-Bandgap Chalcogenoviologens for Electrochromism and Visible-Light-Driven Hydrogen Evolution. Angew Chem Int Ed Engl 2018; 57:4897-4901. [DOI: 10.1002/anie.201711761] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/05/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Guoping Li
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Letian Xu
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Weidong Zhang
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Kun Zhou
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Yousong Ding
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Fenglin Liu
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Xiaoming He
- School of Chemical Science and Engineering; Tongji University; Shanghai 200092 China
| | - Gang He
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
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27
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Li G, Xu L, Zhang W, Zhou K, Ding Y, Liu F, He X, He G. Narrow-Bandgap Chalcogenoviologens for Electrochromism and Visible-Light-Driven Hydrogen Evolution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711761] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guoping Li
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Letian Xu
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Weidong Zhang
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Kun Zhou
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Yousong Ding
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Fenglin Liu
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
| | - Xiaoming He
- School of Chemical Science and Engineering; Tongji University; Shanghai 200092 China
| | - Gang He
- Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province 710054 China
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28
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Brandt JR, Pospíšil L, Bednárová L, da Costa RC, White AJP, Mori T, Teplý F, Fuchter MJ. Intense redox-driven chiroptical switching with a 580 mV hysteresis actuated through reversible dimerization of an azoniahelicene. Chem Commun (Camb) 2018; 53:9059-9062. [PMID: 28737778 DOI: 10.1039/c7cc04903j] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Electrochemical reduction of an azoniahelicene affords a dimer, accompanied by a strong change in the electronic circular dichroism. The fast dimerisation event leads to a >500 mV shift of the oxidation potential, affording a large area of bistability, where the chiroptical signal only depends on the redox history.
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Affiliation(s)
- Jochen R Brandt
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
| | - Lubomír Pospíšil
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, 16610 Prague, Czech Republic and J. Heyrovský Institute of Physical Chemistry, The Czech Academy of Sciences, 18223 Prague, Czech Republic
| | - Lucie Bednárová
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, 16610 Prague, Czech Republic
| | | | - Andrew J P White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
| | - Tadashi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Matthew J Fuchter
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. and Centre for Plastic Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
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29
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[5]Helicene derivatives containing aromatic imide moiety: Synthesis, structure, and photophysical properties. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.07.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Severa L, Sázelová P, Císařová I, Šaman D, Koval D, Devadig P, Kašička V, Teplý F. Dutch Resolution of a configurationally stable [5]helquat. Chirality 2018; 30:254-260. [DOI: 10.1002/chir.22789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 10/25/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Lukáš Severa
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Petra Sázelová
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry; Charles University; Prague 2 Czech Republic
| | - David Šaman
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Dušan Koval
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Pradeep Devadig
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Václav Kašička
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
| | - Filip Teplý
- The Institute of Organic Chemistry and Biochemistry of the Czech; Academy of Sciences; Prague 6 Czech Republic
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31
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Kaiser RP, Ulč J, Císařová I, Nečas D. Direct regioselective C–H borylation of [5]helicene. RSC Adv 2018. [DOI: 10.1039/c7ra13021j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile and efficient protocol for a regioselective borylation of [5]helicene was achieved via Ir-catalyzed C–H activation.
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Affiliation(s)
- R. P. Kaiser
- Department of Organic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - J. Ulč
- Department of Organic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - I. Císařová
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
| | - D. Nečas
- Department of Organic Chemistry
- Faculty of Science
- Charles University
- Czech Republic
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32
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Mukhopadhyay A, Hossen T, Ghosh I, Koner AL, Nau WM, Sahu K, Moorthy JN. Helicity-Dependent Regiodifferentiation in the Excited-State Quenching and Chiroptical Properties of Inward/Outward Helical Coumarins. Chemistry 2017; 23:14797-14805. [PMID: 28792106 DOI: 10.1002/chem.201701787] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Indexed: 01/30/2023]
Abstract
Influence of helicity on the excited-state as well as chiroptical properties of two sets of regiohelical coumarins that are differentiated by "inward" and "outward" disposition of the pyran-2-one ring has been investigated. A subtle difference in the helicities manifests in divergent excited-state properties and significant differences in the dipole moments. The latter permit heretofore unprecedented regiodifferentiation in the O-H⋅⋅⋅O hydrogen-bond assisted electron-transfer quenching by phenols. Furthermore, the enantiopure hexahelical coumarins exhibit strong Cotton effects and lend themselves to a very high differentiation in the specific rotations and anisotropic dissymmetry factors. The specific rotation observed for 6-in turns out being the highest of the values reported for all hexahelicenes reported so far.
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Affiliation(s)
| | - Tousif Hossen
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, India
| | - Indrajit Ghosh
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany
| | - Apurba Lal Koner
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, 462066, India
| | - Werner M Nau
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, India
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33
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Tsujihara T, Zhou DY, Suzuki T, Tamura S, Kawano T. Helically Chiral 1-Sulfur-Functionalized [6]Helicene: Synthesis, Optical Resolution, and Functionalization. Org Lett 2017; 19:3311-3314. [DOI: 10.1021/acs.orglett.7b01470] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tetsuya Tsujihara
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Da-Yang Zhou
- Comprehensive
Analysis Center, Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki 567-0047, Japan
| | - Takeyuki Suzuki
- Comprehensive
Analysis Center, Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki 567-0047, Japan
| | - Satoru Tamura
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Tomikazu Kawano
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
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34
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Nejedlý J, Šámal M, Rybáček J, Tobrmanová M, Szydlo F, Coudret C, Neumeier M, Vacek J, Vacek Chocholoušová J, Buděšínský M, Šaman D, Bednárová L, Sieger L, Stará IG, Starý I. Synthesis of Long Oxahelicenes by Polycyclization in a Flow Reactor. Angew Chem Int Ed Engl 2017; 56:5839-5843. [DOI: 10.1002/anie.201700341] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Jindřich Nejedlý
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Michal Šámal
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Jiří Rybáček
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Miroslava Tobrmanová
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Florence Szydlo
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Christophe Coudret
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Maria Neumeier
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Jaroslav Vacek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Jana Vacek Chocholoušová
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Miloš Buděšínský
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - David Šaman
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Lucie Bednárová
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Ladislav Sieger
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
- Department of Physics; CTU in Prague; Faculty of Electrical Engineering; Technická 2 16627 Prague 6 Czech Republic
| | - Irena G. Stará
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Ivo Starý
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
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35
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36
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Hasegawa M, Kobayakawa K, Matsuzawa H, Nishinaga T, Hirose T, Sako K, Mazaki Y. Macrocyclic Oligothiophene with Stereogenic [2.2]Paracyclophane Scaffolds: Chiroptical Properties from π-Transannular Interactions. Chemistry 2017; 23:3267-3271. [DOI: 10.1002/chem.201605842] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Masashi Hasegawa
- Department of Chemistry, Graduate School of Science; Kitasato University; 1-15-1 Kitasato, Minami-ku, Sagamihara Kanagawa 252-0373 Japan
| | - Kosuke Kobayakawa
- Department of Chemistry, Graduate School of Science; Kitasato University; 1-15-1 Kitasato, Minami-ku, Sagamihara Kanagawa 252-0373 Japan
| | - Hideyo Matsuzawa
- Department of Chemistry, Graduate School of Science; Kitasato University; 1-15-1 Kitasato, Minami-ku, Sagamihara Kanagawa 252-0373 Japan
| | - Tohru Nishinaga
- Department of Chemistry, Graduate School of Science and Engineering; Tokyo Metropolitan University; Hachioji Tokyo 192-0397 Japan
| | - Takashi Hirose
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Katsuya Sako
- Department of Life Science and Applied Chemistry; Nagoya Institute of Technology; Nagoya 466-8555 Japan
| | - Yasuhiro Mazaki
- Department of Chemistry, Graduate School of Science; Kitasato University; 1-15-1 Kitasato, Minami-ku, Sagamihara Kanagawa 252-0373 Japan
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37
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Gliemann BD, Petrovic AG, Zolnhofer EM, Dral PO, Hampel F, Breitenbruch G, Schulze P, Raghavan V, Meyer K, Polavarapu PL, Berova N, Kivala M. Configurationally Stable Chiral Dithia-Bridged Hetero[4]helicene Radical Cation: Electronic Structure and Absolute Configuration. Chem Asian J 2016; 12:31-35. [DOI: 10.1002/asia.201601452] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 11/20/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Bettina D. Gliemann
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
| | - Ana G. Petrovic
- Department of Life Sciences; New York Institute of Technology, 1855 Broadway, New York; NY, 10023 USA
- Department of Chemistry; Columbia University, 3000 Broadway, New York; NY, 10027 USA
| | - Eva M. Zolnhofer
- Chair of General and Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen; Germany
| | - Pavlo O. Dral
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Frank Hampel
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
| | - Georg Breitenbruch
- Department of Chromatography and Electrophoresis; Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Philipp Schulze
- Department of Chromatography and Electrophoresis; Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr; Germany
| | - Vijay Raghavan
- Department of Chemistry; Vanderbilt University; TN, 37235 USA 7330 Stevenson Center Station B 351822 Nashville
| | - Karsten Meyer
- Chair of General and Inorganic Chemistry; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen; Germany
| | - Prasad L. Polavarapu
- Department of Chemistry; Vanderbilt University; TN, 37235 USA 7330 Stevenson Center Station B 351822 Nashville
| | - Nina Berova
- Department of Chemistry; Columbia University, 3000 Broadway, New York; NY, 10027 USA
| | - Milan Kivala
- Chair of Organic Chemistry I; Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen; Germany
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38
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Reinvestigation of the photoreaction of 1,4-bis(2,4,6-triphenylpyridinio)benzene: Synthesis of a diazonia derivative of hexabenzoperylene by multiple photocyclization. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.06.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Biet T, Martin K, Hankache J, Hellou N, Hauser A, Bürgi T, Vanthuyne N, Aharon T, Caricato M, Crassous J, Avarvari N. Triggering Emission with the Helical Turn in Thiadiazole-Helicenes. Chemistry 2016; 23:437-446. [PMID: 27763709 DOI: 10.1002/chem.201604471] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 01/17/2023]
Abstract
Introduction of heterocycles into the helical skeleton of helicenes allows modulation of their redox, chiroptical, and photophysical properties. This paper describes the straightforward preparation and structural characterization by single-crystal X-ray diffraction of thiadiazole-[7]helicene, which was resolved into M and P enantiomers by chiral HPLC, together with its S-shaped double [4]helicene isomer, as well as the smaller congeners thiadiazole-[5]helicene and benzothiadiazole-anthracene. A copper(II) complex with two thiadiazole-[5]helicene ligands was structurally characterized, and it shows the presence of both M and P isomers coordinated to the metal center. The emission properties of the heterohelicenes are highly dependent on the helical turn, as the [7]- and [5]helicene are poorly emissive, whereas their isomers, that is, the S-shaped double [4]helicene and thiadiazole-benzanthracene, are luminescent, with quantum efficiencies of 5.4 and 6.5 %, respectively. DFT calculations suggest quenching of the luminescence of enantiopure [7]helicenes through an intersystem-crossing mechanism arising from the relaxed excited S1 state.
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Affiliation(s)
- Thomas Biet
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Kévin Martin
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
| | - Jihane Hankache
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nora Hellou
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Andreas Hauser
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille , France
| | - Tal Aharon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas, 66045, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS - Université de Rennes 1, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Narcis Avarvari
- Université d'Angers, CNRS UMR 6200, Laboratoire MOLTECH-Anjou, 2 bd Lavoisier, 49045, Angers, France
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40
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Viglianisi C, Menichetti S, Piantini S, Tofani L. Helical-Shaped Bis-1,4-benzoxathiines through an Inverse-Electron-Demand Hetero-Diels-Alder Reaction ofortho-Thioquinones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600850] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Stefano Menichetti
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Sara Piantini
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Lorenzo Tofani
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
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41
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Čížková M, Pospíšil L, Klepetářová B, Koval D, Teplý F. Linquats: Synthesis, Characterization, and Properties of Linear Extended Diquats. Chemistry 2016; 22:12154-9. [PMID: 27405657 DOI: 10.1002/chem.201600819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Indexed: 11/08/2022]
Abstract
We report an innovative synthetic route to linear extended diquats (linquats). Our approach is short and efficient and features a highly modular reaction sequence based on two-fold quaternization followed by the key intramolecular [2+2+2] alkyne cycloaddition. The physico-chemical properties of four new linquats were characterized by spectroscopic methods, X-ray crystallography, and electrochemistry complemented by information obtained from DFT calculations. Electron deficient N-heteroaromatic cations with linear extended diquat motif with high electron affinities have been recently recognized as attractive n-type semiconductors for chemical and biological sensing. Their advantageous redox properties such as very fast reversible electron transfers make the title compounds interesting for applications.
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Affiliation(s)
- Martina Čížková
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Lubomír Pospíšil
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10, Prague 6, Czech Republic.,J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23, Prague 8, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Dušan Koval
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10, Prague 6, Czech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10, Prague 6, Czech Republic.
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42
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Tsujihara T, Inada-Nozaki N, Takehara T, Zhou DY, Suzuki T, Kawano T. Nickel-Catalyzed Construction of Chiral 1-[6]Helicenols and Application in the Synthesis of [6]Helicene-Based Phosphinite Ligands. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600677] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tetsuya Tsujihara
- Department of Medicinal and Organic Chemistry; School of Pharmacy; Iwate Medical University; 028-3694 Yahaba, Iwate Japan
| | - Nao Inada-Nozaki
- Department of Medicinal and Organic Chemistry; School of Pharmacy; Iwate Medical University; 028-3694 Yahaba, Iwate Japan
| | - Tsunayoshi Takehara
- The Institute of Scientific and Industrial Research; Osaka University; Mihogaoka, Ibaraki 567-0047 Osaka Japan
| | - Da-Yang Zhou
- The Institute of Scientific and Industrial Research; Osaka University; Mihogaoka, Ibaraki 567-0047 Osaka Japan
| | - Takeyuki Suzuki
- The Institute of Scientific and Industrial Research; Osaka University; Mihogaoka, Ibaraki 567-0047 Osaka Japan
| | - Tomikazu Kawano
- Department of Medicinal and Organic Chemistry; School of Pharmacy; Iwate Medical University; 028-3694 Yahaba, Iwate Japan
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Thiophene-Based Double Helices: Syntheses, X-ray Structures, and Chiroptical Properties. J Am Chem Soc 2016; 138:10002-10. [DOI: 10.1021/jacs.6b05709] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Shen C, Loas G, Srebro‐Hooper M, Vanthuyne N, Toupet L, Cador O, Paul F, López Navarrete JT, Ramírez FJ, Nieto‐Ortega B, Casado J, Autschbach J, Vallet M, Crassous J. Iron Alkynyl Helicenes: Redox‐Triggered Chiroptical Tuning in the IR and Near‐IR Spectral Regions and Suitable for Telecommunications Applications. Angew Chem Int Ed Engl 2016; 55:8062-6. [DOI: 10.1002/anie.201601633] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Goulc'hen Loas
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Monika Srebro‐Hooper
- Faculty of Chemistry Jagiellonian University R. Ingardena 3 30-060 Krakow Poland
| | - Nicolas Vanthuyne
- Aix Marseille Université Centrale Marseille CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - 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
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260 USA
| | - Marc Vallet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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45
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Shen C, Loas G, Srebro‐Hooper M, Vanthuyne N, Toupet L, Cador O, Paul F, López Navarrete JT, Ramírez FJ, Nieto‐Ortega B, Casado J, Autschbach J, Vallet M, Crassous J. Iron Alkynyl Helicenes: Redox‐Triggered Chiroptical Tuning in the IR and Near‐IR Spectral Regions and Suitable for Telecommunications Applications. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601633] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Goulc'hen Loas
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Monika Srebro‐Hooper
- Faculty of Chemistry Jagiellonian University R. Ingardena 3 30-060 Krakow Poland
| | - Nicolas Vanthuyne
- Aix Marseille Université Centrale Marseille CNRS, iSm2 UMR 7313 13397 Marseille France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - 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
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260 USA
| | - Marc Vallet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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Schweinfurth D, Mazzolini M, Neshchadin D, Hoyer C, Geier R, Gatterer K, Trapp N, Gescheidt G, Diederich F. Electronic Structures and Chiroptical Properties of Post-functionalized Helicene Quinones. Chemistry 2016; 22:7152-7. [PMID: 27106784 DOI: 10.1002/chem.201600611] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Indexed: 11/07/2022]
Abstract
The synthesis of redox-active p- and o-quinones 2-phenylamino-4-phenylimino[6]helicene-1-one 1, 2-phenylamino[6]-helicene-1,4-dione 2, and 4-phenyl[6]helicene-1,2-dione 3 in their enantiopure forms by post-functionalization of (P)- and (M)-1,2-dimethoxy[6]helicene is presented. Structural characterization in solution and in the solid state was accomplished by 2D NMR spectroscopy methods and X-ray diffraction analysis, respectively. Interpretation of electrochemical redox data was accompanied by a detailed orbital picture, derived from DFT calculations. The electronic structures of compounds 1-3 were investigated by UV/Vis and electronic circular dichroism (ECD) spectroscopy, complemented by TD-DFT calculations. Quinones 1-3 were chemically reduced to study the EPR signatures of their respective radical anions. DFT methods were used for the atom assignment of the hyperfine coupling constants. The results are discussed within the context of electrochromic chiral switches and molecular recognition.
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Affiliation(s)
- David Schweinfurth
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland
| | - Marcella Mazzolini
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland
| | - Dmytro Neshchadin
- Institute of Physical and Theoretical Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - Carolin Hoyer
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland
| | - Roman Geier
- Institute of Physical and Theoretical Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - Karl Gatterer
- Institute of Physical and Theoretical Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - Nils Trapp
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland
| | - Georg Gescheidt
- Institute of Physical and Theoretical Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - François Diederich
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093, Zurich, Switzerland.
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47
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Šebestík J, Teplý F, Císařová I, Vávra J, Koval D, Bouř P. Intense chirality induction in nitrile solvents by a helquat dye monitored by near resonance Raman scattering. Chem Commun (Camb) 2016; 52:6257-60. [PMID: 27087537 DOI: 10.1039/c6cc01606e] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chirality induction phenomena attract attention because of their relevance to intermolecular interactions encountered in living matter. Usually, such effects are weak. However, enantiomers of a [6]helquat dye were found to induce exceptionally strong chirality in several achiral solvents containing nitrile groups. This effect was observable as an intense Raman optical activity (ROA) induced in acetonitrile, acetonitrile-d3, and liquid hydrogen cyanide solvents. The observation was verified by measurement of both helquat enantiomers which provided mirror image ROA spectra. Theoretical analysis indicated that the 532 nm laser excitation light was in a near resonance with electronic transitions of the dye, which made the effect observable in very dilute solutions (1 : 200 000 helquat to nitrile ratio) and thus the phenomenon can be generally useful in analytical chemistry.
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Affiliation(s)
- Jaroslav Šebestík
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic.
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48
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De Simone BC, Marino T, Russo N. TDDFT investigation on methylviologen, 3,7-diazabenzophosphole, and helical helquat electrochromic systems. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1845-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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49
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Delgado IH, Pascal S, Wallabregue A, Duwald R, Besnard C, Guénée L, Nançoz C, Vauthey E, Tovar RC, Lunkley JL, Muller G, Lacour J. Functionalized cationic [4]helicenes with unique tuning of absorption, fluorescence and chiroptical properties up to the far-red range. Chem Sci 2016; 7:4685-4693. [PMID: 29348909 PMCID: PMC5772034 DOI: 10.1039/c6sc00614k] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/06/2016] [Indexed: 01/09/2023] Open
Abstract
Unprecedented regioselective post-functionalization of racemic and enantiopure cationic diaza [4]helicenes is afforded. The peripheral auxochrome substituents allow a general tuning of the electrochemical, photophysical and chiroptical properties of the helical dyes (26 examples). For instance, electronic absorption and circular dichroism are modulated from the orange to near-infrared spectral range (575-750 nm), fluorescence quantum efficiency is enhanced up to 0.55 (631 nm) and circularly polarized luminescence is recorded in the red (|glum| ∼ 10-3).
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Affiliation(s)
- I Hernández Delgado
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - S Pascal
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - A Wallabregue
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - R Duwald
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - C Besnard
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - L Guénée
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - C Nançoz
- Department of Physical Chemistry , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - E Vauthey
- Department of Physical Chemistry , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - R C Tovar
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - J L Lunkley
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - G Muller
- Department of Chemistry , San José State University , 1 Washington Square , San José , CA 95192-0101 , USA
| | - J Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
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50
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Coe BJ, Rusanova D, Joshi VD, Sánchez S, Vávra J, Khobragade D, Severa L, Císařová I, Šaman D, Pohl R, Clays K, Depotter G, Brunschwig BS, Teplý F. Helquat Dyes: Helicene-like Push–Pull Systems with Large Second-Order Nonlinear Optical Responses. J Org Chem 2016; 81:1912-20. [DOI: 10.1021/acs.joc.5b02692] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benjamin J. Coe
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Daniela Rusanova
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Vishwas D. Joshi
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Sergio Sánchez
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jan Vávra
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Dushant Khobragade
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Lukáš Severa
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - David Šaman
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Radek Pohl
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
| | - Koen Clays
- Department
of Chemistry, University of Leuven, Celestijnenlaan 200 D, Leuven B-3001, Belgium
| | - Griet Depotter
- Department
of Chemistry, University of Leuven, Celestijnenlaan 200 D, Leuven B-3001, Belgium
| | - Bruce S. Brunschwig
- Molecular
Materials Research Center, Beckman Institute, MC 139-74, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
| | - Filip Teplý
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo n. 2, 166 10 Prague 6, Czech Republic
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