1
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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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2
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Full F, Wölflick Q, Radacki K, Braunschweig H, Nowak‐Król A. Enhanced Optical Properties of Azaborole Helicenes by Lateral and Helical Extension. Chemistry 2022; 28:e202202280. [PMID: 35877557 PMCID: PMC9826013 DOI: 10.1002/chem.202202280] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Indexed: 01/11/2023]
Abstract
The synthesis and characterization of laterally extended azabora[5]-, -[6]- and -[7]helicenes, assembled from N-heteroaromatic and dibenzo[g,p]chrysene building blocks is described. Formally, the π-conjugated systems of the pristine azaborole helicenes were enlarged with a phenanthrene unit leading to compounds with large Stokes shifts, significantly enhanced luminescence quantum yields (Φ) and dissymmetry factors (glum ). The beneficial effect on optical properties was also observed for helical elongation. The combined contributions of lateral and helical extensions resulted in a compound showing green emission with Φ of 0.31 and |glum | of 2.2×10-3 , highest within the series of π-extended azaborahelicenes and superior to emission intensity and chiroptical response of its non-extended congener. This study shows that helical and lateral extensions of π-conjugated systems are viable strategies to improve features of azaborole helicenes. In addition, single crystal X-ray analysis of configurationally stable [6]- and -[7]helicenes was used to provide insight into their packing arrangements.
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Affiliation(s)
- Felix Full
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronUniversität WürzburgAm Hubland97074WürzburgGermany,Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
| | - Quentin Wölflick
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronUniversität WürzburgAm Hubland97074WürzburgGermany,Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
| | - Krzysztof Radacki
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronUniversität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronUniversität WürzburgAm Hubland97074WürzburgGermany
| | - Agnieszka Nowak‐Król
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronUniversität WürzburgAm Hubland97074WürzburgGermany,Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
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3
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Machalska E, Zajac G, Wierzba AJ, Kapitán J, Andruniów T, Spiegel M, Gryko D, Bouř P, Baranska M. Recognition of the True and False Resonance Raman Optical Activity. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107600] [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)
- Ewa Machalska
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET) Jagiellonian University Bobrzynskiego 14 30-348 Krakow Poland
| | - Grzegorz Zajac
- Jagiellonian Centre for Experimental Therapeutics (JCET) Jagiellonian University Bobrzynskiego 14 30-348 Krakow Poland
- Institute of Organic Chemistry and Biochemistry Academy of Sciences Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Aleksandra J. Wierzba
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Josef Kapitán
- Department of Optics Palacký University Olomouc 17. listopadu 12 77146 Olomouc Czech Republic
| | - Tadeusz Andruniów
- Department of Chemistry Wroclaw University of Science and Technology Wyb. Wyspianskiego 27 50-370 Wroclaw Poland
| | - Maciej Spiegel
- Department of Pharmacognosy and Herbal Medicine Wroclaw Medical University Borowska 211A 50-556 Wroclaw Poland
| | - Dorota Gryko
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Petr Bouř
- Institute of Organic Chemistry and Biochemistry Academy of Sciences Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Malgorzata Baranska
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET) Jagiellonian University Bobrzynskiego 14 30-348 Krakow Poland
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4
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Machalska E, Zajac G, Wierzba AJ, Kapitán J, Andruniów T, Spiegel M, Gryko D, Bouř P, Baranska M. Recognition of the True and False Resonance Raman Optical Activity. Angew Chem Int Ed Engl 2021; 60:21205-21210. [PMID: 34216087 PMCID: PMC8519086 DOI: 10.1002/anie.202107600] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/01/2021] [Indexed: 12/16/2022]
Abstract
Resonance Raman optical activity (RROA) possesses all aspects of a sensitive tool for molecular detection, but its measurement remains challenging. We demonstrate that reliable recording of RROA of chiral colorful compounds is possible, but only after considering the effect of the electronic circular dichroism (ECD) on the ROA spectra induced by the dissolved chiral compound. We show RROA for a number of model vitamin B12 derivatives that are chemically similar but exhibit distinctively different spectroscopic behavior. The ECD/ROA effect is proportional to the concentration and dependent on the optical pathlength of the light propagating through the sample. It can severely alter relative band intensities and signs in the natural RROA spectra. The spectra analyses are supported by computational modeling based on density functional theory. Neglecting the ECD effect during ROA measurement can lead to misinterpretation of the recorded spectra and erroneous conclusions about the molecular structure.
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Affiliation(s)
- Ewa Machalska
- Faculty of ChemistryJagiellonian UniversityGronostajowa 230-387KrakowPoland
- Jagiellonian Centre for Experimental Therapeutics (JCET)Jagiellonian UniversityBobrzynskiego 1430-348KrakowPoland
| | - Grzegorz Zajac
- Jagiellonian Centre for Experimental Therapeutics (JCET)Jagiellonian UniversityBobrzynskiego 1430-348KrakowPoland
- Institute of Organic Chemistry and BiochemistryAcademy of SciencesFlemingovo náměstí 216610PragueCzech Republic
| | - Aleksandra J. Wierzba
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Josef Kapitán
- Department of OpticsPalacký University Olomouc17. listopadu 1277146OlomoucCzech Republic
| | - Tadeusz Andruniów
- Department of ChemistryWroclaw University of Science and TechnologyWyb. Wyspianskiego 2750-370WroclawPoland
| | - Maciej Spiegel
- Department of Pharmacognosy and Herbal MedicineWroclaw Medical UniversityBorowska 211A50-556WroclawPoland
| | - Dorota Gryko
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Petr Bouř
- Institute of Organic Chemistry and BiochemistryAcademy of SciencesFlemingovo náměstí 216610PragueCzech Republic
| | - Malgorzata Baranska
- Faculty of ChemistryJagiellonian UniversityGronostajowa 230-387KrakowPoland
- Jagiellonian Centre for Experimental Therapeutics (JCET)Jagiellonian UniversityBobrzynskiego 1430-348KrakowPoland
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5
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Dusold C, Sharapa DI, Hampel F, Hirsch A. π-Extended Diaza[7]helicenes by Hybridization of Naphthalene Diimides and Hexa-peri-hexabenzocoronenes. Chemistry 2021; 27:2332-2341. [PMID: 32815577 PMCID: PMC7898888 DOI: 10.1002/chem.202003402] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/14/2020] [Indexed: 01/12/2023]
Abstract
The synthesis of an unprecedented, π-extended hexabenzocorene (HBC)-based diaza[7]helicene is presented. The target compound was synthesized by an ortho-fusion of two naphthalene diimide (NDI) units to a HBC-skeleton. A combination of Diels-Alder and Scholl-type oxidation reactions involving a symmetric di-NDI-tolane precursor were crucial for the very selective formation of the helical superstructure via a hexaphenyl-benzene (HPB) derivative. The formation of the diaza[7]helicene moiety in the final Scholl oxidation is favoured, affording the symmetric π-extended helicene as the major product as a pair of enantiomers. The separation of the enantiomers was successfully accomplished by HPLC involving a chiral stationary phase. The absolute configuration of the enantiomers was assigned by comparison of circular dichroism spectra with quantum mechanical calculations.
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Affiliation(s)
- Carolin Dusold
- Department of Chemistry and PharmacyFriedrich-Alexander University Erlangen-NürnbergNikolaus-Fiebiger-Straße 1091058ErlangenGermany
| | - Dmitry I. Sharapa
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Frank Hampel
- Department of Chemistry and PharmacyFriedrich-Alexander University Erlangen-NürnbergNikolaus-Fiebiger-Straße 1091058ErlangenGermany
| | - Andreas Hirsch
- Department of Chemistry and PharmacyFriedrich-Alexander University Erlangen-NürnbergNikolaus-Fiebiger-Straße 1091058ErlangenGermany
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6
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A Multiple Chirality Switching Device for Spatial Light Modulators. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Yang G, Yu Y, Yang B, Lu T, Cai Y, Yin H, Zhang H, Zhang NN, Li L, Zhang YM, Zhang SXA. A Multiple Chirality Switching Device for Spatial Light Modulators. Angew Chem Int Ed Engl 2021; 60:2018-2023. [PMID: 32885573 DOI: 10.1002/anie.202009916] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/24/2020] [Indexed: 12/25/2022]
Abstract
A new and simple strategy towards electric-field-driven multiple chirality switching device has been designed and fabricated by combining a newly synthesized base-responsive chiroptical polymer switch (R-FLMA) and p-benzoquinone (p-BQ) via proton-coupled electron transfer (PCET) mechanism. Clear and stable triple chirality states (silence, positive, negative) of this device in visible band can be regulated reversibly (>1000 cycles) by adjusting voltage programs. Furthermore, such chiral switching phenomena are also accompanied by apparent changes of color and fluorescence. More importantly, the potential application of this device for a spatial light modulator has also been demonstrated.
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Affiliation(s)
- Guojian Yang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yang Yu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Baige Yang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Tong Lu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yiru Cai
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Hang Yin
- Institute of Atom and Molecular Physics, Jilin University, Changchun, P. R. China
| | - Huiqi Zhang
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Ning-Ning Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Li Li
- College of Chemistry, Jilin University, Changchun, P. R. China.,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, P. R. China
| | - Yu-Mo Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Sean Xiao-An Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
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8
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Ludwig S, Helmdach K, Hüttenschmidt M, Oberem E, Rabeah J, Villinger A, Ludwig R, Seidel WW. Metal/Metal Redox Isomerism Governed by Configuration. Chemistry 2020; 26:16811-16817. [PMID: 32648996 PMCID: PMC7756430 DOI: 10.1002/chem.202003120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Indexed: 12/05/2022]
Abstract
A pair of diastereomeric dinuclear complexes, [Tp′(CO)BrW{μ‐η2‐C,C′‐κ2‐S,P‐C2(PPh2)S}Ru(η5‐C5H5)(PPh3)], in which W and Ru are bridged by a phosphinyl(thiolato)alkyne in a side‐on carbon P,S‐chelate coordination mode, were synthesized, separated and fully characterized. Even though the isomers are similar in their spectroscopic properties and redox potentials, the like‐isomer is oxidized at W while the unlike‐isomer is oxidized at Ru, which is proven by IR, NIR and EPR‐spectroscopy supported by spectro‐electrochemistry and computational methods. The second oxidation of the complexes was shown to take place at the metal left unaffected in the first redox step. Finally, the tipping point could be realized in the unlike isomer of the electronically tuned thiophenolate congener [Tp′(CO)(PhS)W{μ‐η2‐C,C′‐κ2‐S,P‐C2(PPh2)S}Ru(η5‐C5H5)‐(PPh3)], in which valence trapped WIII/RuII and WII/RuIII cationic species are at equilibrium.
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Affiliation(s)
- Stephan Ludwig
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059, Rostock, Germany
| | - Kai Helmdach
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059, Rostock, Germany
| | - Mareike Hüttenschmidt
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059, Rostock, Germany
| | - Elisabeth Oberem
- Department Life, Light & Matter, Universität Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
| | - Jabor Rabeah
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059, Rostock, Germany
| | - Ralf Ludwig
- Department Life, Light & Matter, Universität Rostock, Albert-Einstein-Straße 25, 18059, Rostock, Germany
| | - Wolfram W Seidel
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059, Rostock, Germany
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9
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Kelber JB, Bensalah-Ledoux A, Zahouani S, Baguenard B, Schaaf P, Chaumont A, Guy S, Jierry L. Reversible Soft Mechanochemical Control of Biaryl Conformations through Crosslinking in a 3D Macromolecular Network. Angew Chem Int Ed Engl 2020; 59:23283-23290. [PMID: 32857901 DOI: 10.1002/anie.202010604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Indexed: 11/11/2022]
Abstract
Tuning the dihedral angle (DA) of axially chiral compounds can impact biological activity, catalyst efficiency, molecular motor performance, or chiroptical properties. Herein, we report gradual, controlled, and reversible changes in molecular conformation of a covalently linked binaphthyl moiety within a 3D polymeric network by application of a macroscopic stretching force. We managed direct observation of DA changes by measuring the circular dichroism signal of an optically pure BINOL-crosslinked elastomer network. Stretching the elastomer resulted in a widening of the DA between naphthyl rings when the BINOL was doubly grafted to the elastomer network; no effect was observed when a single naphthyl ring of the BINOL was grafted to the elastomer network. We have determined that ca. 170 % extension of the elastomers led to the transfer of a mechanical force to the BINOL moiety of 2.5 kcal mol-1 Å-1 (ca. 175 pN) in magnitude and results in the opening of the DA of BINOL up to 130°.
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Affiliation(s)
- Julien B Kelber
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Amina Bensalah-Ledoux
- Université Claude Bernard Lyon 1, Université de Lyon, CNRS, Institut Lumière Matière (UMR5306), 69622, Lyon, France
| | - Sarah Zahouani
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
| | - Bruno Baguenard
- Université Claude Bernard Lyon 1, Université de Lyon, CNRS, Institut Lumière Matière (UMR5306), 69622, Lyon, France
| | - Pierre Schaaf
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France.,Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France.,Université de Strasbourg Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000, Strasbourg, France
| | - Alain Chaumont
- Université de Strasbourg, Faculté de Chimie, UMR7140, 1 rue Blaise Pascal, 67008, Strasbourg Cedex, France
| | - Stephan Guy
- Université Claude Bernard Lyon 1, Université de Lyon, CNRS, Institut Lumière Matière (UMR5306), 69622, Lyon, France
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France
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10
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Kelber JB, Bensalah‐Ledoux A, Zahouani S, Baguenard B, Schaaf P, Chaumont A, Guy S, Jierry L. Reversible Soft Mechanochemical Control of Biaryl Conformations through Crosslinking in a 3D Macromolecular Network. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julien B. Kelber
- Université de Strasbourg CNRS, Institut Charles Sadron (UPR22) 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Amina Bensalah‐Ledoux
- Université Claude Bernard Lyon 1 Université de Lyon CNRS, Institut Lumière Matière (UMR5306) 69622 Lyon France
| | - Sarah Zahouani
- Université de Strasbourg CNRS, Institut Charles Sadron (UPR22) 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Bruno Baguenard
- Université Claude Bernard Lyon 1 Université de Lyon CNRS, Institut Lumière Matière (UMR5306) 69622 Lyon France
| | - Pierre Schaaf
- Université de Strasbourg CNRS, Institut Charles Sadron (UPR22) 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
- Institut National de la Santé et de la Recherche Médicale INSERM Unité 1121 11 rue Humann 67085 Strasbourg Cedex France
- Université de Strasbourg Faculté de Chirurgie Dentaire 8 rue Sainte Elisabeth 67000 Strasbourg France
| | - Alain Chaumont
- Université de Strasbourg Faculté de Chimie UMR7140 1 rue Blaise Pascal 67008 Strasbourg Cedex France
| | - Stephan Guy
- Université Claude Bernard Lyon 1 Université de Lyon CNRS, Institut Lumière Matière (UMR5306) 69622 Lyon France
| | - Loïc Jierry
- Université de Strasbourg CNRS, Institut Charles Sadron (UPR22) 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
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11
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Selby J, Holzapfel M, Lombe BK, Schmidt D, Krause AM, Würthner F, Bringmann G, Lambert C. Chiroptical Properties of Indolenine Squaraines with a Stereogenic Center at Close Proximity. J Org Chem 2020; 85:12227-12242. [DOI: 10.1021/acs.joc.0c01422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Joshua Selby
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Marco Holzapfel
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Blaise Kimbadi Lombe
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - David Schmidt
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg 9, 97074 Würzburg, Germany
| | - Ana-Maria Krause
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg 9, 97074 Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg 9, 97074 Würzburg, Germany
| | - Gerhard Bringmann
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Christoph Lambert
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg 9, 97074 Würzburg, Germany
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12
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Abhervé A, Martin K, Hauser A, Avarvari N. Helicene Bis(pyrazol-1-yl)pyridine Ligands for Luminescent Transition-Metal Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900870] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandre Abhervé
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Kévin Martin
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Andreas Hauser
- Department of Physical Chemistry; University of Geneva; 30 Quai Ernest-Ansermet 1211 Geneva Switzerland
| | - Narcis Avarvari
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
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13
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Bedi A, Carmieli R, Gidron O. Radical cations of twisted acenes: chiroptical properties and spin delocalization. Chem Commun (Camb) 2019; 55:6022-6025. [PMID: 31062015 DOI: 10.1039/c9cc02735a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We introduce the first series of enantiopure twistacene radical cations, which form reversibly upon chemical or electrochemical oxidation. Their vis-NIR chiroptical properties (Cotton effect and anisotropy factor) increase systematically with the backbone twist. The hyperfine constants observed by EPR demonstrate significant spin delocalization even for large backbone twist angles.
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Affiliation(s)
- Anjan Bedi
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel.
| | - Raanan Carmieli
- Chemical Research Support Unit, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ori Gidron
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel.
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14
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Jiang H, Jiang Y, Han J, Zhang L, Liu M. Helical Nanostructures: Chirality Transfer and a Photodriven Transformation from Superhelix to Nanokebab. Angew Chem Int Ed Engl 2019; 58:785-790. [DOI: 10.1002/anie.201811060] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/12/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Hejin Jiang
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yuqian Jiang
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
| | - Jianlei Han
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
| | - Li Zhang
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Minghua Liu
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Collaborative Innovation Center of Chemical Science, and Engineering Tianjin 300072 China
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15
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Galland M, Riobé F, Ouyang J, Saleh N, Pointillart F, Dorcet V, Le Guennic B, Cador O, Crassous J, Andraud C, Monnereau C, Maury O. Helicenic Complexes of Lanthanides: Influence of the f-Element on the Intersystem Crossing Efficiency and Competition between Luminescence and Oxygen Sensitization. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800922] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Margaux Galland
- Université Lyon; ENS de Lyon; CNRS UMR 5182; Laboratoire de Chimie; Université Claude Bernard Lyon 1 69342 Lyon France
| | - François Riobé
- Université Lyon; ENS de Lyon; CNRS UMR 5182; Laboratoire de Chimie; Université Claude Bernard Lyon 1 69342 Lyon France
| | - Jiangkun Ouyang
- Univ Rennes; CNRS; ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; 35000 Rennes France
| | - Nidal Saleh
- Univ Rennes; CNRS; ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; 35000 Rennes France
| | - Fabrice Pointillart
- Univ Rennes; CNRS; ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; 35000 Rennes France
| | - Vincent Dorcet
- 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
| | - Olivier Cador
- Univ Rennes; CNRS; ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; 35000 Rennes France
| | - Jeanne Crassous
- Univ Rennes; CNRS; ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; 35000 Rennes France
| | - Chantal Andraud
- Université Lyon; ENS de Lyon; CNRS UMR 5182; Laboratoire de Chimie; Université Claude Bernard Lyon 1 69342 Lyon France
| | - Cyrille Monnereau
- Université Lyon; ENS de Lyon; CNRS UMR 5182; Laboratoire de Chimie; Université Claude Bernard Lyon 1 69342 Lyon France
| | - Olivier Maury
- Université Lyon; ENS de Lyon; CNRS UMR 5182; Laboratoire de Chimie; Université Claude Bernard Lyon 1 69342 Lyon France
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16
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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
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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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17
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Jiang H, Jiang Y, Han J, Zhang L, Liu M. Helical Nanostructures: Chirality Transfer and a Photodriven Transformation from Superhelix to Nanokebab. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hejin Jiang
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yuqian Jiang
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
| | - Jianlei Han
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
| | - Li Zhang
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Minghua Liu
- National Laboratory for Molecular Science (BNLMS)CAS Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- Laboratory for Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Collaborative Innovation Center of Chemical Science, and Engineering Tianjin 300072 China
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18
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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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19
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Reger D, Haines P, Heinemann FW, Guldi DM, Jux N. Oxa[7]superhelicen: ein π-erweiterter, helikaler Chromophor auf Hexa-peri
-hexabenzocoronen-Basis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800585] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- David Reger
- Department Chemie und Pharmazie &, Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Nikolaus-Fiebiger-Straße 10 91058 Erlangen Deutschland
| | - Philipp Haines
- Department Chemie und Pharmazie &, Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstraße 3 91058 Erlangen Deutschland
| | - Frank W. Heinemann
- Department Chemie und Pharmazie; Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstraße 1 91058 Erlangen Deutschland
| | - Dirk M. Guldi
- Department Chemie und Pharmazie &, Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstraße 3 91058 Erlangen Deutschland
| | - Norbert Jux
- Department Chemie und Pharmazie &, Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Nikolaus-Fiebiger-Straße 10 91058 Erlangen Deutschland
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20
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Reger D, Haines P, Heinemann FW, Guldi DM, Jux N. Oxa[7]superhelicene: A π-Extended Helical Chromophore Based on Hexa-peri
-hexabenzocoronenes. Angew Chem Int Ed Engl 2018; 57:5938-5942. [DOI: 10.1002/anie.201800585] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/20/2018] [Indexed: 01/14/2023]
Affiliation(s)
- David Reger
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
| | - Philipp Haines
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstrasse 3 91058 Erlangen Germany
| | - Frank W. Heinemann
- Department Chemie und Pharmazie; Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstrasse 1 91058 Erlangen Germany
| | - Dirk M. Guldi
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstrasse 3 91058 Erlangen Germany
| | - Norbert Jux
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM); Friedrich-Alexander-Universität Erlangen-Nürnberg; Nikolaus-Fiebiger-Strasse 10 91058 Erlangen Germany
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21
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Resa S, Miguel D, Guisán-Ceinos S, Mazzeo G, Choquesillo-Lazarte D, Abbate S, Crovetto L, Cárdenas DJ, Carreño MC, Ribagorda M, Longhi G, Mota AJ, Álvarez de Cienfuegos L, Cuerva JM. Sulfoxide-Induced Homochiral Folding of ortho
-Phenylene Ethynylenes (o
-OPEs) by Silver(I) Templating: Structure and Chiroptical Properties. Chemistry 2018; 24:2653-2662. [DOI: 10.1002/chem.201704897] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Sandra Resa
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | - Delia Miguel
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Santiago Guisán-Ceinos
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giuseppe Mazzeo
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos; Instituto Andaluz de Ciencias de la Tierra, CSIC-UGR; Armilla, Granada Spain
| | - Sergio Abbate
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Luis Crovetto
- Department of Physical Chemistry; University of Granada, UGR, Cartuja Campus; 18071 Granada Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - M. Carmen Carreño
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - María Ribagorda
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Cantoblanco; 28049 Madrid Spain
| | - Giovanna Longhi
- Dipartimento di Medicina e Traslazionale; Università di Brescia; Viale Europa 11 25123 Brescia Italy
| | - Antonio J. Mota
- Department of Inorganic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
| | | | - Juan M. Cuerva
- Department of Organic Chemistry; University of Granada, UGR; C. U. Fuentenueva 18071 Granada Spain
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22
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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: 34] [Impact Index Per Article: 4.3] [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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23
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Schuster NJ, Paley DW, Jockusch S, Ng F, Steigerwald ML, Nuckolls C. Electron Delocalization in Perylene Diimide Helicenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607878] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Daniel W. Paley
- Chemistry Department; Columbia University; New York NY 10027 USA
| | - Steffen Jockusch
- Chemistry Department; Columbia University; New York NY 10027 USA
| | - Fay Ng
- Chemistry Department; Columbia University; New York NY 10027 USA
| | | | - Colin Nuckolls
- Chemistry Department; Columbia University; New York NY 10027 USA
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24
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Schuster NJ, Paley DW, Jockusch S, Ng F, Steigerwald ML, Nuckolls C. Electron Delocalization in Perylene Diimide Helicenes. Angew Chem Int Ed Engl 2016; 55:13519-13523. [PMID: 27717214 DOI: 10.1002/anie.201607878] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Indexed: 11/10/2022]
Abstract
We report two new helicenes derived from the double fusion of an acene with two perylene diimide (PDI) subunits. These PDI-helicene homologs exhibit very different structural and electronic properties, despite differing by only a single ring in the link between the PDI units. The shorter inter-PDI link brings the two PDI subunits closer together, and this results in the collision of their respective π-electron clouds. This collision facilitates intramolecular through-space electronic delocalization when the PDI-helicene is reduced.
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Affiliation(s)
| | - Daniel W Paley
- Chemistry Department, Columbia University, New York, NY, 10027, USA
| | - Steffen Jockusch
- Chemistry Department, Columbia University, New York, NY, 10027, USA
| | - Fay Ng
- Chemistry Department, Columbia University, New York, NY, 10027, USA
| | | | - Colin Nuckolls
- Chemistry Department, Columbia University, New York, NY, 10027, USA.
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