1
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Kondo Y, Tsutsui Y, Matsuo Y, Tanaka T, Seki S. Impacts of heteroatom substitution on the excited state dynamics of π-extended helicenes. NANOSCALE ADVANCES 2024:d4na00516c. [PMID: 39144158 PMCID: PMC11320297 DOI: 10.1039/d4na00516c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Accepted: 07/29/2024] [Indexed: 08/16/2024]
Abstract
Benzo-annulated aza[9]helicene ([9]AH) and thia[9]helicene ([9]TH) were prepared as novel π-extended heterohelicenes. [9]TH showed a quite short fluorescence lifetime of ∼0.3 ns and intense phosphorescence at low temperature that were attributed to its larger spin-orbit coupling and faster intersystem crossing between pseudo-degenerate S1/2 and triplet states.
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Affiliation(s)
- Yuto Kondo
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Yusuke Tsutsui
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
- JST-PRESTO Honcho 4-1-8, Kawaguchi Saitama 332-0012 Japan
| | - Yusuke Matsuo
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Takayuki Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
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2
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Frédéric L, Fabri B, Guénée L, Zinna F, Di Bari L, Lacour J. Triple Regioselective Functionalization of Cationic [4]Helicenes via Iridium-Catalyzed Borylation and Suzuki Cross-Coupling Reactivity. Chemistry 2022; 28:e202201853. [PMID: 35796630 DOI: 10.1002/chem.202201853] [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: 06/15/2022] [Indexed: 01/07/2023]
Abstract
In essentially one-pot, using Ir- and Pd-catalysis, tris(arene)-functionalized cationic [4]helicenes are synthesized with full regioselectivity and enantiospecificity starting from a trivial precursor (17 examples). This poly-addition of aryl groups improves key optical properties, that is, fluorescence quantum yields and lifetimes. Electronic circular dichroism and circularly polarized luminescence signatures are observed up to the far-red domain, in particular with additional arenes prone to aggregation.
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Affiliation(s)
- Lucas Frédéric
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| | - Bibiana Fabri
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| | - Laure Guénée
- Laboratoire de Cristallographie, University of Geneva, Quai Ernest Ansermet 24, 1211, Geneva 4, Switzerland
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via G. Moruzzi 13, Pisa, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via G. Moruzzi 13, Pisa, Italy
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
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3
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Yen-Pon E, Buttard F, Frédéric L, Thuéry P, Taran F, Pieters G, Champagne PA, Audisio D. Heterohelicenes through 1,3-Dipolar Cycloaddition of Sydnones with Arynes: Synthesis, Origins of Selectivity, and Application to pH-Triggered Chiroptical Switch with CPL Sign Reversal. JACS AU 2021; 1:807-818. [PMID: 34467334 PMCID: PMC8395615 DOI: 10.1021/jacsau.1c00084] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 05/25/2023]
Abstract
Regioselective access to heterohelicenes through the 1,3-dipolar cycloaddition of sydnones with arynes is described. Novel access to sydnones and poly(hetero)aromatic aryne precursors allowed the introduction of chemical diversity over multiple positions of the helical scaffolds. The origins of the unconventional regioselectivity during the cycloaddition steps was systematically investigated using density functional theory (DFT) calculations, unveiling the key features that control this reactivity, namely, face-to-face (π···π) or edge-to-face (C-H···π) interactions, primary orbital interactions and distortion from coplanarity in the transition structures (TSs) of the transformation. From the library of 24 derivatives synthesized, a pyridyl containing derivative displayed reversible, red-shifted, pH-triggered chiroptical switching properties, with CPL-sign reversal. It is found that protonation of the helicene causes a change of the angle between the electric and magnetic dipole moments related to the S1 → S0 transition, resulting in this rare case of reversible CPL sign inversion upon application of an external stimulus.
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Affiliation(s)
- Expédite Yen-Pon
- Université
Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage,
DMTS, Gif-sur-Yvette 91191, France
| | - Floris Buttard
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Lucas Frédéric
- Université
Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage,
DMTS, Gif-sur-Yvette 91191, France
| | - Pierre Thuéry
- Université
Paris-Saclay, CEA, CNRS, NIMBE, Gif-sur-Yvette 91191, France
| | - Frédéric Taran
- Université
Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage,
DMTS, Gif-sur-Yvette 91191, France
| | - Grégory Pieters
- Université
Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage,
DMTS, Gif-sur-Yvette 91191, France
| | - Pier Alexandre Champagne
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Davide Audisio
- Université
Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage,
DMTS, Gif-sur-Yvette 91191, France
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4
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Schoemaker R, Schwedtmann K, Hennersdorf F, Bauzá A, Frontera A, Weigand JJ. Toward N,P-Doped π-Extended PAHs: A One-Pot Synthesis to Diannulated 1,4,2-Diazaphospholium Triflate Salts. J Org Chem 2020; 85:14420-14434. [PMID: 32351111 DOI: 10.1021/acs.joc.0c00577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel method for the one-pot synthesis of diannulated 1,4,2-diazaphospholium triflate salts by a Me3SiOTf-mediated self-condensation of dichlorophosphaneyl aza-(poly)cyclic aromatic hydrocarbons (aza-(P)AHs; namely, pyridine, quinoline, phenanthridine, and benzo[d]thiazole) is reported. The diannulated 1,4,2-diazaphospholium triflate salts are characterized by multinuclear NMR spectroscopy, X-ray analysis, as well as their calculated NICS values, underlining their aromatic character. Quantum mechanical calculations shed light on the intermolecular reaction mechanism. Follow up chemistry, such as the halogenation reaction with XeF2 or SO2Cl2 with the dipyridinium derivative selectively yields the respective dihalo-σ4,λ5- and tetrahalo-σ5,λ6-diazaphospholium triflate salts. The dihalo-σ4,λ5-diazaphospholium triflate salt serves well as a surrogate for the introduction of the cationic 2-(1,2'-bipyridin)-1-iumyl ligand (1,2'-bipyl), the monocationic structural isomer of the prototypical 2,2'-bipyridine ligand (2,2'-bipy).
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Affiliation(s)
- Robin Schoemaker
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Kai Schwedtmann
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Felix Hennersdorf
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Antonio Bauzá
- Department of Chemistry, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Palma de Mallorca 07122, Spain
| | - Jan J Weigand
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
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5
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Saleh N, Kundu D, Vanthuyne N, Olesiak-Banska J, Pniakowska A, Matczyszyn K, Chang VY, Muller G, Williams JAG, Srebro-Hooper M, Autschbach J, Crassous J. Dinuclear Rhenium Complexes with a Bridging Helicene-bis-bipyridine Ligand: Synthesis, Structure, and Photophysical and Chiroptical Properties. Chempluschem 2020; 85:2446-2454. [PMID: 32965092 PMCID: PMC7745256 DOI: 10.1002/cplu.202000559] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/01/2020] [Indexed: 12/19/2022]
Abstract
By attaching pyridine groups to a diaza[6]helicene, a helical, bis-ditopic, bis-N N-coordinating ligand can be accessed. Dinuclear rhenium complexes featuring this bridging ligand, of the form [{Re(CO)3 Cl}2 (N N-N N)], have been prepared and resolved to give enantiopure complexes. These complexes are phosphorescent in solution at room temperature under one- and two-photon excitation. Their experimental chiroptical properties (optical rotation, electronic circular dichroism and circularly polarized emission) have been measured. They show, for instance, emission dissymmetry factors of c.a. ±3x10-3 . Quantum-chemical calculations indicate the importance of stereochemistry on the optical activity, pointing towards further design improvements in such types of complexes.
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Affiliation(s)
- Nidal Saleh
- Univ Rennes, CNRS, ISCR - UMR 6226, 35000, Rennes, France
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Debsouri Kundu
- Univ Rennes, CNRS, ISCR - UMR 6226, 35000, Rennes, France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS Centrale, Marseille, iSm2, 13284, France
| | - Joanna Olesiak-Banska
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Anna Pniakowska
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Victoria Y Chang
- Department of Chemistry, San José State University, San José, CA, 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, CA, 95192-0101, USA
| | | | - Monika Srebro-Hooper
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
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6
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Moneva Lorente P, Wallabregue A, Zinna F, Besnard C, Di Bari L, Lacour J. Synthesis and properties of chiral fluorescent helicene-BODIPY conjugates. Org Biomol Chem 2020; 18:7677-7684. [PMID: 32970060 DOI: 10.1039/d0ob01809k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of chiral fluorescent helicene-BODIPY conjugates was prepared by the regioselective formylation of aza[4]helicene precursors and then an efficient one-pot two-step BODIPY synthesis (13 examples, 28-82%). Fused conjugates exhibit absorption and fluorescence properties (ΦF 30-45%) in the red visible domain, and a CPL signature could be measured at 605 nm (glum ±5 × 10-4). Photophysical and electronic properties were investigated and rationalized through first principles.
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Affiliation(s)
- Pau Moneva Lorente
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
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7
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Gauthier ES, Rodríguez R, Crassous J. Metal‐Based Multihelicenic Architectures. Angew Chem Int Ed Engl 2020; 59:22840-22856. [DOI: 10.1002/anie.202004361] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Indexed: 11/10/2022]
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8
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Gauthier ES, Rodríguez R, Crassous J. Metal‐Based Multihelicenic Architectures. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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9
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Yan ZP, Luo XF, Liao K, Zheng YX, Zuo JL. Rational Design of the Platinahelicene Enantiomers for Deep-Red Circularly Polarized Organic Light-Emitting Diodes. Front Chem 2020; 8:501. [PMID: 32626689 PMCID: PMC7311825 DOI: 10.3389/fchem.2020.00501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/15/2020] [Indexed: 12/03/2022] Open
Abstract
[n]Helicene derivatives are most popular chiral structures to construct luminescent materials with circularly polarized (CP) light, which have revealed appealing application in chiral optoelectronics. Particularly, because of the unique phosphorescent emission, platinahelicene has great application prospects in CP organic light-emitting diode (CP-OLED). Herein, by decorating the pyridinyl-helicene ligand with trifluoromethyl (-CF3) unit in a specific position, a pair of platinahelicene enantiomers was prepared and separated with extremely twisted structure showing not only superior thermal and configurational stability but also good CP luminescence (CPL) property with dissymmetry factors (|gPL|) of 6 × 10−3. Moreover, the evaporated CP-OLEDs based on platinahelicene enantiomers exhibited the deep-red emission with the peak at 653 nm as well as obvious CP electroluminescence (CPEL) signals with the |gEL| in 10−3 order. Therefore, the design strategy provides an efficient way to improve the CPL properties of platinahelicene to cope with the future application in CP-OLEDs.
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Affiliation(s)
- Zhi-Ping Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Xu-Feng Luo
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Kang Liao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
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10
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Lu B, Qi Q, Wang Y, Chang H, Zhai J, You T. Interfacial effect of dual ultra-thin SiO 2 core-triple shell Au@SiO 2@Ag@SiO 2 for ultra-sensitive trinitrotoluene (TNT) detection. RSC Adv 2020; 10:3826-3831. [PMID: 35492681 PMCID: PMC9048382 DOI: 10.1039/c9ra06902j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/02/2019] [Indexed: 12/24/2022] Open
Abstract
Nanostructured hybrid Au@SiO2@Ag@SiO2 was developed, which greatly enhanced the surface plasmon resonance effect due to the interfacial effect of dual ultra-thin SiO2 in which the double-superimposed long-range plasmon transfer between Au and Ag and determinand molecules. In addition, the interfacial effect between the inner and outermost silica layer can contribute to the presence of an amplified electric field between Au core and Ag shell, which prevents aggregation and oxidation of nanoparticles. At the same time, the influence of the amount of silica in SiO2 shells on the Surface Enhanced Raman Scattering (SERS) was explored by controlling the experimental conditions. In our experiments, the ultrathin silica coating Au@SiO2@Ag@SiO2 showed the best SERS performance, generating an analytical enhancement factor (AEF) of 5 × 106. At the same time, nanoparticles modified by 4-aminothiophenol (4-ATP) can detect 2,4,6-TNT as low as 2.27 × 10−6 ppb (10−14 M) and exhibit excellent versatility in the detection of nitroaromatics. The results demonstrated that the interfacial effect of double-layer dielectric silica achieved the localized surface plasmon resonance enhancement effect in Au@SiO2@Ag@SiO2. The ultra-sensitive detection of trinitrotoluene (TNT) demonstrates that interfacial effect of double-layer dielectric silica achieves the LSPR enhancement effect in Au@SiO2@Ag@SiO2.![]()
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Affiliation(s)
- Bingxin Lu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University China
| | - Qi Qi
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University China
| | - Yang Wang
- Institute of Chemistry Chinese Academy of Sciences China
| | - Huaiqiu Chang
- National Center for Nanoscience and Technology China
| | - Jin Zhai
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University China
| | - Tingting You
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University China
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11
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Qin C, Xie X, Wang G, Jia X, Liu Y. Synthesis of phospholes and 1,1′-biphospholes mediated by zirconacyclopentadienes and PBr3. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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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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13
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Sanogo Y, Aillard P, Retailleau P, Voituriez A, Marinetti A. Synthesis and X‐ray diffraction study of a chiral bis‐phosphahelicene palladium (II) complex. Chirality 2019; 31:561-567. [DOI: 10.1002/chir.23100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Youssouf Sanogo
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris‐Sud Gif‐sur‐Yvette France
| | - Paul Aillard
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris‐Sud Gif‐sur‐Yvette France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris‐Sud Gif‐sur‐Yvette France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris‐Sud Gif‐sur‐Yvette France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris‐Sud Gif‐sur‐Yvette France
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14
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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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15
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Yan ZP, Luo XF, Liu WQ, Wu ZG, Liang X, Liao K, Wang Y, Zheng YX, Zhou L, Zuo JL, Pan Y, Zhang H. Configurationally Stable Platinahelicene Enantiomers for Efficient Circularly Polarized Phosphorescent Organic Light-Emitting Diodes. Chemistry 2019; 25:5672-5676. [PMID: 30829426 DOI: 10.1002/chem.201900955] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Indexed: 01/01/2023]
Abstract
Chiral materials with circularly polarized luminescence (CPL) are potentially applicable for 3D displays. In this study, by decorating the pyridinyl-helicene ligands with -CF3 and -F groups, the platinahelicene enantiomers featured superior configurational stability, as well as high sublimation yield (>90 %) and clear CPPL properties, with dissymmetry factors (|gPL |) of approximately 3.7×10-3 in solution and about 4.1×10-3 in doped film. The evaporated circularly polarized phosphorescent organic light-emitting diodes (CP-PhOLEDs) with two enantiomers as emitters exhibited symmetric CPEL signals with |gEL | of (1.1-1.6)×10-3 and decent device performances, achieving a maximum brightness of 11 590 cd m-2 , a maximum external quantum efficiency up to 18.81 %, which are the highest values among the reported devices based on chiral phosphorescent PtII complexes. To suppress the effect of reverse CPEL signal from the cathode reflection, the further implementation of semitransparent aluminum/silver cathode successfully boosts up the |gEL | by over three times to 5.1×10-3 .
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Affiliation(s)
- Zhi-Ping Yan
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Xu-Feng Luo
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wei-Qiang Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Zheng-Guang Wu
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Xiao Liang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Kang Liao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Liang Zhou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
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16
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Ortolan AO, Caramori GF, Parreira RLT, Muñoz-Castro A. Helicenes as Molecular Tweezers in the Formation of Cation-π Complexes. Bonding and Circular Dichroism Properties from Relativistic DFT Calculations. Chemphyschem 2018; 19:2321-2330. [PMID: 29904983 DOI: 10.1002/cphc.201800470] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Indexed: 12/20/2022]
Abstract
Helicene ligands possess a unique helicoidal π-conjugated framework providing high optical rotation values. This has stimulated a growing interest in helicene derivatives as building blocks, which has triggered the development of simple strategies to tune their properties. In this context, we evaluated the formation of cation-π complexes derived from [6]- and [7]helicene, involving Sn2+ , Cd2+ , and In+ in addition of Ag+ , which appears as a plausible modification of such helicoidal structure. The nature of the cation-π interaction in the studied helicene complexes exhibits a covalent character, accounting for ligand π-donation to 5 s and 5p empty orbitals of the involved cations. Furthermore, the evaluation of their optical activity exhibits notorious modification patterns in the circular dichroism spectrum, suggesting that the modifications of the optical activity are dependent on the nature of the cation and its related charge state. Thus, the plausible formation of new cation-π complexes derived from helicene ligands, as discussed here, may lead to the characterization of novel species expanding the chemistry of helicene metal complexes to even to larger helicene units. We believe that the present study may open new avenues in the formation of cation-π helicene complexes.
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Affiliation(s)
- Alexandre O Ortolan
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil
| | - Giovanni F Caramori
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil
| | - Renato L T Parreira
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, 14404-600, Brazil
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares Facultad de Ingenieria, Universidad Autonoma de Chile, El Llano Subercaseaux, Santiago, Chile
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17
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Seibert J, Pisarek J, Schmitz S, Bannwarth C, Grimme S. Extension of the element parameter set for ultra-fast excitation spectra calculation (sTDA-xTB). Mol Phys 2018. [DOI: 10.1080/00268976.2018.1510141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jakob Seibert
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Jana Pisarek
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Sarah Schmitz
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Christoph Bannwarth
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, University of Bonn, Bonn, Germany
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18
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Song J, Wang M, Zhou X, Xiang H. Unusual Circularly Polarized and Aggregation-Induced Near-Infrared Phosphorescence of Helical Platinum(II) Complexes with Tetradentate Salen Ligands. Chemistry 2018; 24:7128-7132. [DOI: 10.1002/chem.201801414] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Jintong Song
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Man Wang
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Xiangge Zhou
- College of Chemistry; Sichuan University; Chengdu 610041 China
| | - Haifeng Xiang
- College of Chemistry; Sichuan University; Chengdu 610041 China
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19
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Demmer CS, Aillard P, Febvay J, Retailleau P, Voituriez A, Marinetti A. Photochemical [2+2] Cyclization of Helical Phosphinamides in Solution and in the Solid State. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201700148] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Charles S. Demmer
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Paul Aillard
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Julie Febvay
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 Université Paris-Sud; Université Paris-Saclay; 1, av. de la Terrasse 91198 Gif-sur-Yvette France
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20
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Szűcs R, Bouit P, Nyulászi L, Hissler M. Phosphorus‐Containing Polycyclic Aromatic Hydrocarbons. Chemphyschem 2017; 18:2618-2630. [DOI: 10.1002/cphc.201700438] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/30/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Rózsa Szűcs
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRSUniversité de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
- Department of Inorganic and Analytical ChemistryBudapest University of Technology and Economics Szt. Gellert ter 4 H-1111 Budapest Hungary
| | - Pierre‐Antoine Bouit
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRSUniversité de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - László Nyulászi
- Department of Inorganic and Analytical ChemistryBudapest University of Technology and Economics Szt. Gellert ter 4 H-1111 Budapest Hungary
| | - Muriel Hissler
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRSUniversité de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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21
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Riobé F, Szűcs R, Lescop C, Réau R, Nyulászi L, Bouit PA, Hissler M. Coordination Complexes of P-Containing Polycyclic Aromatic Hydrocarbons: Optical Properties and Solid-State Supramolecular Assembly. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00715] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- François Riobé
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
| | - Rózsa Szűcs
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
- Department
of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellert ter 4, H-1111 Budapest, Hungary
| | - Christophe Lescop
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
| | - Régis Réau
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
| | - László Nyulászi
- Department
of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellert ter 4, H-1111 Budapest, Hungary
| | - Pierre-Antoine Bouit
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
| | - Muriel Hissler
- Institut des Sciences Chimiques de Rennes UMR 6226 CNRS - Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, 35042 Rennes, France
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22
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Li SS, Liu CF, Zhang GT, Xia YQ, Li WH, Dong L. A Convenient One-Pot Route to Screw-Shaped [5]Azahelicenes via Rhodium(III)-Catalyzed Multiple C−H Bond Activation. Chem Asian J 2017; 12:415-418. [PMID: 28044420 DOI: 10.1002/asia.201601744] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Shuai-Shuai Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Chen-Fei Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Guo-Tai Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ying-Qi Xia
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Wei-Huan Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
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23
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Jhulki S, Mishra AK, Chow TJ, Moorthy JN. Carbo[5]helicene versus planar phenanthrene as a scaffold for organic materials in OLEDs: the electroluminescence of anthracene-functionalized emissive materials. NEW J CHEM 2017. [DOI: 10.1039/c7nj02233f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Rigid and twisted carbo[5]helicene imparts better physical and electroluminescence properties than planar phenantherene for phenylanthracene-functionalized emissive materials.
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Affiliation(s)
- Samik Jhulki
- Department of Chemistry
- Indian Institute of Technology
- Kanpur 208016
- India
| | | | - Tahsin J. Chow
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
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24
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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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25
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Bensalah-Ledoux A, Pitrat D, Reynaldo T, Srebro-Hooper M, Moore B, Autschbach J, Crassous J, Guy S, Guy L. Large-Scale Synthesis of Helicene-Like Molecules for the Design of Enantiopure Thin Films with Strong Chiroptical Activity. Chemistry 2016; 22:3333-3346. [PMID: 26797752 DOI: 10.1002/chem.201504174] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Indexed: 01/23/2023]
Affiliation(s)
| | - Delphine Pitrat
- Laboratoire de Chimie; Université de Lyon, CNRS; Ecole Normale Supérieure de Lyon, UMR 5182; 46, Allée d'Italie 69364 Lyon cedex 07 France
| | - Thibault Reynaldo
- Institut des Sciences Chimiques de Rennes; UMR 6226 Campus de Beaulieu; CNRS-Université de Rennes; 135042 Rennes Cedex France
| | - Monika Srebro-Hooper
- Department of Theoretical Chemistry; Faculty of Chemistry; Jagiellonian University; R. Ingardena 3 30-060 Krakow Poland
| | - Barry Moore
- Department of Chemistry; University at Buffalo; State University of New York; Buffalo, NY 14260-3000 USA
| | - Jochen Autschbach
- Department of Chemistry; University at Buffalo; State University of New York; Buffalo, NY 14260-3000 USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes; UMR 6226 Campus de Beaulieu; CNRS-Université de Rennes; 135042 Rennes Cedex France
| | - Stéphan Guy
- Institut Lumière Matière; Université Lyon 1 CNRS UMR5306; Villeurbanne 69622 France
| | - Laure Guy
- Laboratoire de Chimie; Université de Lyon, CNRS; Ecole Normale Supérieure de Lyon, UMR 5182; 46, Allée d'Italie 69364 Lyon cedex 07 France
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26
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Srebro M, Anger E, Moore II B, Vanthuyne N, Roussel C, Réau R, Autschbach J, Crassous J. Ruthenium-Grafted Vinylhelicenes: Chiroptical Properties and Redox Switching. Chemistry 2015; 21:17100-15. [DOI: 10.1002/chem.201502237] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Indexed: 11/09/2022]
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27
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Upadhyay GM, Bedekar AV. Synthesis and photophysical properties of bi-aza[5]helicene and bi-aza[6]helicene. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Vacek J, Chocholoušová JV, Stará IG, Starý I, Dubi Y. Mechanical tuning of conductance and thermopower in helicene molecular junctions. NANOSCALE 2015; 7:8793-8802. [PMID: 25905658 DOI: 10.1039/c5nr01297j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Helicenes are inherently chiral polyaromatic molecules composed of all-ortho fused benzene rings possessing a spring-like structure. Here, using a combination of density functional theory and tight-binding calculations, it is demonstrated that controlling the length of the helicene molecule by mechanically stretching or compressing the molecular junction can dramatically change the electronic properties of the helicene, leading to a tunable switching behavior of the conductance and thermopower of the junction with on/off ratios of several orders of magnitude. Furthermore, control over the helicene length and number of rings is shown to lead to more than an order of magnitude increase in the thermopower and thermoelectric figure-of-merit over typical molecular junctions, presenting new possibilities of making efficient thermoelectric molecular devices. The physical origin of the strong dependence of the transport properties of the junction is investigated, and found to be related to a shift in the position of the molecular orbitals.
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Affiliation(s)
- Jaroslav Vacek
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16610 Prague 6, Czech Republic.
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29
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Riobé F, Szűcs R, Bouit PA, Tondelier D, Geffroy B, Aparicio F, Buendía J, Sánchez L, Réau R, Nyulászi L, Hissler M. Synthesis, Electronic Properties and WOLED Devices of Planar Phosphorus-Containing Polycyclic Aromatic Hydrocarbons. Chemistry 2015; 21:6547-56. [DOI: 10.1002/chem.201500203] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Indexed: 01/06/2023]
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30
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Bucinskas A, Waghray D, Bagdziunas G, Thomas J, Grazulevicius JV, Dehaen W. Synthesis, Functionalization, and Optical Properties of Chiral Carbazole-Based Diaza[6]helicenes. J Org Chem 2015; 80:2521-8. [DOI: 10.1021/jo5024188] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Audrius Bucinskas
- Molecular
Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium
- Department
of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Deepali Waghray
- Molecular
Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium
| | - Gintautas Bagdziunas
- Department
of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Joice Thomas
- Molecular
Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium
| | - Juozas Vidas Grazulevicius
- Department
of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania
| | - Wim Dehaen
- Molecular
Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium
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32
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Organocatalyzed asymmetric synthesis and absolute configuration assignment of enantioenriched α-benzylaminocoumarins. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Saleh N, Moore B, Srebro M, Vanthuyne N, Toupet L, Gareth Williams JA, Roussel C, Deol KK, Muller G, Autschbach J, Crassous J. Acid/base-triggered switching of circularly polarized luminescence and electronic circular dichroism in organic and organometallic helicenes. Chemistry 2015; 21:1673-81. [PMID: 25418503 PMCID: PMC4801116 DOI: 10.1002/chem.201405176] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Indexed: 11/06/2022]
Abstract
Electronic circular dichroism and circularly polarized luminescence acid/base switching activity has been demonstrated in helicene-bipyridine proligand 1 a and in its "rollover" cycloplatinated derivative 2 a. Whereas proligand 1 a displays a strong bathochromic shift (>160 nm) of the nonpolarized and circularly polarized luminescence upon protonation, complex 2 a displays slightly stronger emission. This strikingly different behavior between singlet emission in the organic helicene and triplet emission in the organometallic derivative has been rationalized by using quantum-chemical calculations. The very large bathochromic shift of the emission observed upon protonation of azahelicene-bipyridine 1 a has been attributed to the decrease in aromaticity (promoting a charge-transfer-type transition rather than a π-π* transition) as well as an increase in the HOMO-LUMO character of the transition and stabilization of the LUMO level upon protonation.
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Affiliation(s)
- Nidal Saleh
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Barry Moore
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Monika Srebro
- Faculty of Chemistry, Jagiellonian University, 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, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | | | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille, France
| | - Kirandeep K. Deol
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - 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, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
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34
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Bhattacharya P, Senapati K, Chattopadhyay K, Mandal SM, Basak A. Synthesis of benzochromenes and dihydrophenanthridines with helical motifs using Garratt–Braverman and Buchwald–Hartwig reactions. RSC Adv 2015. [DOI: 10.1039/c5ra12512j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
X-ray structures of dihydrophenanthiridine (a) and benzochromene (b) showing greater helicity in (a).
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Affiliation(s)
| | - Kalyan Senapati
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | | | - Santi M. Mandal
- Central Research Facility
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Amit Basak
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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35
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Virieux D, Sevrain N, Ayad T, Pirat JL. Helical Phosphorus Derivatives. ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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El Sayed Moussa M, Guillois K, Shen W, Réau R, Crassous J, Lescop C. Dissymmetrical U-Shaped π-Stacked Supramolecular Assemblies by Using a Dinuclear CuIClip with Organophosphorus Ligands and Monotopic Fully π-Conjugated Ligands. Chemistry 2014; 20:14853-67. [DOI: 10.1002/chem.201403758] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 11/12/2022]
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Schweinfurth D, Zalibera M, Kathan M, Shen C, Mazzolini M, Trapp N, Crassous J, Gescheidt G, Diederich F. Helicene Quinones: Redox-Triggered Chiroptical Switching and Chiral Recognition of the Semiquinone Radical Anion Lithium Salt by Electron Nuclear Double Resonance Spectroscopy. J Am Chem Soc 2014; 136:13045-52. [DOI: 10.1021/ja5069323] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- David Schweinfurth
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Michal Zalibera
- Institute
of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Michael Kathan
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Chengshuo Shen
- Institut des Sciences
Chimiques de Rennes, UMR 6226, CNRS—Université de Rennes
1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Marcella Mazzolini
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Nils Trapp
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Jeanne Crassous
- Institut des Sciences
Chimiques de Rennes, UMR 6226, CNRS—Université de Rennes
1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Georg Gescheidt
- Institute
of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - François Diederich
- Laboratory
of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
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Wallabregue A, Sherin P, Guin J, Besnard C, Vauthey E, Lacour J. Modular Synthesis of pH-Sensitive Fluorescent Diaza[4]helicenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402863] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Upadhyay GM, Talele HR, Sahoo S, Bedekar AV. Synthesis of carbazole derived aza[7]helicenes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.116] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Aillard P, Voituriez A, Marinetti A. Helicene-like chiral auxiliaries in asymmetric catalysis. Dalton Trans 2014; 43:15263-78. [DOI: 10.1039/c4dt01935k] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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41
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Öberg E, Orthaber A, Lescop C, Réau R, Hissler M, Ott S. Phosphorus centers of different hybridization in phosphaalkene-substituted phospholes. Chemistry 2014; 20:8421-32. [PMID: 24890504 PMCID: PMC4506554 DOI: 10.1002/chem.201402406] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/10/2022]
Abstract
Phosphole-substituted phosphaalkenes (PPAs) of the general formula Mes*P=C(CH(3))-(C(4)H(2)P(Ph))-R 5 a-c (Mes*=2,4,6-tBu(3)Ph; R=2-pyridyl (a), 2-thienyl (b), phenyl (c)) have been prepared from octa-1,7-diyne-substituted phosphaalkenes by utilizing the Fagan-Nugent route. The presence of two differently hybridized phosphorus centers (σ(2) ,λ(3) and σ(3) ,λ(3)) in 5 offers the possibility to selectively tune the HOMO-LUMO gap of the compounds by utilizing the different reactivity of the two phosphorus heteroatoms. Oxidation of 5 a-c by sulfur proceeds exclusively at the σ(3) ,λ(3) -phosphorus atom, thus giving rise to the corresponding thioxophospholes 6 a-c. Similarly, 5 a is selectively coordinated by AuCl at the σ(3),λ(3) -phosphorus atom. Subsequent second AuCl coordination at the σ(2),λ(3) -phosphorus heteroatom results in a dimetallic species that is characterized by a gold-gold interaction that provokes a change in π conjugation. Spectroscopic, electrochemical, and theoretical investigations show that the phosphaalkene and the phosphole both have a sizable impact on the electronic properties of the compounds. The presence of the phosphaalkene unit induces a decrease of the HOMO-LUMO gap relative to reference phosphole-containing π systems that lack a P=C substituent.
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Affiliation(s)
- Elisabet Öberg
- Department of Chemistry, Ångström Laboratories, Uppsala UniversityBox 523, 75120 Uppsala (Sweden), Fax: (+46) 18-471-6844 E-mail:
| | - Andreas Orthaber
- Department of Chemistry, Ångström Laboratories, Uppsala UniversityBox 523, 75120 Uppsala (Sweden), Fax: (+46) 18-471-6844 E-mail:
| | - Christophe Lescop
- Institut des Sciences Chimiques de Rennes, UMR6226, CNRS-Université de Rennes 1Campus de Beaulieu, 35042 Rennes Cedex (France) E-mail:
| | - Régis Réau
- Institut des Sciences Chimiques de Rennes, UMR6226, CNRS-Université de Rennes 1Campus de Beaulieu, 35042 Rennes Cedex (France) E-mail:
| | - Muriel Hissler
- Institut des Sciences Chimiques de Rennes, UMR6226, CNRS-Université de Rennes 1Campus de Beaulieu, 35042 Rennes Cedex (France) E-mail:
| | - Sascha Ott
- Department of Chemistry, Ångström Laboratories, Uppsala UniversityBox 523, 75120 Uppsala (Sweden), Fax: (+46) 18-471-6844 E-mail:
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42
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Saleh N, Shen C, Crassous J. Helicene-based transition metal complexes: synthesis, properties and applications. Chem Sci 2014. [DOI: 10.1039/c4sc01404a] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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43
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Hoffmann N. Photochemical reactions applied to the synthesis of helicenes and helicene-like compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2013.11.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Mendola D, Saleh N, Vanthuyne N, Roussel C, Toupet L, Castiglione F, Caronna T, Mele A, Crassous J. Aza[6]helicene Platinum Complexes: Chirality Control ofcis-transIsomerism. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201401004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Mendola D, Saleh N, Vanthuyne N, Roussel C, Toupet L, Castiglione F, Caronna T, Mele A, Crassous J. Aza[6]helicene Platinum Complexes: Chirality Control ofcis-transIsomerism. Angew Chem Int Ed Engl 2014; 53:5786-90. [DOI: 10.1002/anie.201401004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/03/2014] [Indexed: 11/06/2022]
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46
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Pospíšil L, Bednárová L, Štěpánek P, Slavíček P, Vávra J, Hromadová M, Dlouhá H, Tarábek J, Teplý F. Intense Chiroptical Switching in a Dicationic Helicene-Like Derivative: Exploration of a Viologen-Type Redox Manifold of a Non-Racemic Helquat. J Am Chem Soc 2014; 136:10826-9. [DOI: 10.1021/ja500220j] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Lubomír Pospíšil
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
- J.
Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 18223 Prague, Czech Republic
| | - Lucie Bednárová
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
| | - Petr Štěpánek
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
- Institute
of Physics, Faculty of Mathematics and Physics, Charles University, 12116 Prague, Czech Republic
| | - Petr Slavíček
- Department
of Physical Chemistry, Institute of Chemical Technology, 16628 Prague, Czech Republic
| | - Jan Vávra
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
| | - Magdaléna Hromadová
- J.
Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 18223 Prague, Czech Republic
| | - Helena Dlouhá
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
| | - Ján Tarábek
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
| | - Filip Teplý
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 16610 Prague, Czech Republic
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Aillard P, Retailleau P, Voituriez A, Marinetti A. A [2+2+2] cyclization strategy for the synthesis of phosphorus embedding [6]helicene-like structures. Chem Commun (Camb) 2014; 50:2199-201. [DOI: 10.1039/c3cc48943d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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48
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Shen C, Anger E, Srebro M, Vanthuyne N, Deol KK, Jefferson TD, Muller G, Gareth Williams JA, Toupet L, Roussel C, Autschbach J, Réau R, Crassous J. Straightforward access to mono- and bis-cycloplatinated helicenes that display circularly polarized phosphorescence using crystallization resolution methods. Chem Sci 2014; 5:1915-1927. [PMID: 24855556 DOI: 10.1039/c3sc53442a] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Enantiopure mono-cycloplatinated-[8]helicene and bis-cycloplatinated-[6]helicene derivatives were prepared through column chromatography combined with crystallization of diastereomeric complexes using a chiral ancillary sulfoxide ligand. The UV-visible spectra, circular dichroism, molar rotations, and (circularly polarized) luminescence activity of these new helical complexes have been examined in detail and analysed with the help of first-principles quantum-chemical calculations.
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Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Emmanuel Anger
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Monika Srebro
- Faculty of Chemistry, Jagiellonian University, 30-060 Krakow, Poland
| | - Nicolas Vanthuyne
- Chirosciences, UMR 7313, Stéréochimie Dynamique et Chiralité, Aix-Marseille University, 13397 Marseille Cedex 20, France
| | - Kirandeep K Deol
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - Truman D Jefferson
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | | | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Christian Roussel
- Chirosciences, UMR 7313, Stéréochimie Dynamique et Chiralité, Aix-Marseille University, 13397 Marseille Cedex 20, France
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Régis Réau
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
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Ruzziconi R, Bellachioma G, Ciancaleoni G, Lepri S, Superchi S, Zanasi R, Monaco G. Cationic half-sandwich quinolinophaneoxazoline-based (η6-p-cymene)ruthenium(ii) complexes exhibiting different chirality types: synthesis and structural determination by complementary spectroscopic methods. Dalton Trans 2014; 43:1636-50. [DOI: 10.1039/c3dt52291a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Fukazawa A, Osaki H, Yamaguchi S. Hydroxyphenyl-Substituted Benzophosphole Oxides: Impact of the Intramolecular Hydrogen Bond on the Fluorescence Properties. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300227] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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