1
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Martin K, Aharon T, Mastropasqua Talamo M, Hauser A, Bürgi T, Vanthuyne N, Caricato M, Avarvari N. Helicene Appended Benzothiadiazoles as Chiral Emitters. Chemistry 2024; 30:e202401413. [PMID: 38770893 DOI: 10.1002/chem.202401413] [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: 04/11/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
A homologous series of 4,7-bis(aryl) substituted benzothiadiazole (BTD) compounds, containing the helicenic derivatives bis([4]helicene), bis([5]helicene) and bis([6]helicene), have been prepared upon a double Suzuki coupling between 3,6-bis(pinacolyl-borane)-BTD and the corresponding bromo-aryl precursors. The single crystal X-ray structure of the bis([4]helicene) compound shows the existence of both helicities (M) and (P) on the same molecule. All the compounds of the series are highly emissive in solution, with quantum yields of the emission ranging from 50 to 91 %. The enantiopure compounds (M,M) and (P,P) for the BTD-bis([6]helicene) have been prepared from the corresponding enantiopure 2-bromo-[6]helicene precursors. Their chiroptical properties have been investigated in correlation with density functional theory (DFT) calculations, which allowed to confidently assign the absolute configuration of the helicene arms and to characterize the different electronic transitions, including the low energy charge transfer excitation from helicenes to BTD. The enantiomerically pure fluorophores (M,M)- and (P,P)-BTD-bis([6]helicene), which exist in solution as two main conformers, according to the DFT calculations, show CPL activity in solution, with glum factors of ≈1.7×10-3 at λem=525 nm, and also in the solid state, with glum factors of ≈1.2×10-3 in spite of the strong decrease of the quantum efficiency.
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Affiliation(s)
- Kévin Martin
- Univ Angers, CNRS, MOLTECH-Anjou SFR MATRIX, F-49000, Angers, France
| | - Tal Aharon
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas, 66045, United States of America
- TetraScience, 294 Washington St, Boston, MA 02108, United States of America
| | | | - Andreas Hauser
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211, Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211, Geneva, Switzerland
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille UAR, 1739, FSCM, Chiropole, Marseille, France
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas, 66045, United States of America
| | - Narcis Avarvari
- Univ Angers, CNRS, MOLTECH-Anjou SFR MATRIX, F-49000, Angers, France
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2
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Vensaus P, Liang Y, Zigon N, Avarvari N, Mujica V, Soler-Illia GJAA, Lingenfelder M. Hybrid mesoporous electrodes evidence CISS effect on water oxidation. J Chem Phys 2024; 160:111103. [PMID: 38511663 DOI: 10.1063/5.0199339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024] Open
Abstract
Controlling product selectivity is essential for improving the efficiency of multi-product reactions. Electrochemical water oxidation is a reaction of main importance in different applications, e.g., renewable energy schemes and environmental protection, where H2O2 and O2 are the two principal products. In this Communication, the product selectivity of electrochemical water oxidation was controlled by making use of the chiral induced spin selectivity (CISS) effect at mesoporous-TiO2 on the molecule-modified Au substrate. Our results show a decrease in H2O2 formation when using chiral hetero-helicene molecules adsorbed on the Au substrate. We propose a mechanism for this kinetic effect based on the onset of CISS-induced spin polarization on the Au-helicene chiral interface. We also present a new tunable substrate to investigate the CISS mechanism.
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Affiliation(s)
- Priscila Vensaus
- Max Planck-EPFL Laboratory for Molecular Nanoscience and Technology, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Instituto de Nanosistemas, Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín, San Martín B1650, Buenos Aires, Argentina
| | - Yunchang Liang
- Max Planck-EPFL Laboratory for Molecular Nanoscience and Technology, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Nicolas Zigon
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Narcis Avarvari
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France
| | - Vladimiro Mujica
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
| | - Galo J A A Soler-Illia
- Instituto de Nanosistemas, Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín, San Martín B1650, Buenos Aires, Argentina
| | - Magalí Lingenfelder
- Max Planck-EPFL Laboratory for Molecular Nanoscience and Technology, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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3
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Hatanaka M. Size dependence of optical activities in helical polymers. Chirality 2024; 36:e23641. [PMID: 38384158 DOI: 10.1002/chir.23641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/12/2023] [Accepted: 12/22/2023] [Indexed: 02/23/2024]
Abstract
Chiroptical properties of helical polymers do not always align with the sum of the local contributions of their unit cells. This study investigates the discrepancy in optical rotatory strength between local and global structures using a right-handed helical polyacetylene model. The chirality is examined through density functional theory (DFT) calculations. The analysis reveals that, at higher degrees of polymerization, the contribution of chirality from the helical strand generally surpasses the partial chirality from the local structure. The ratio of local contribution to total contribution is deduced within the framework of crystal orbital theory, and a numerical method using Wannier functions is presented for evaluation.
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Affiliation(s)
- Masashi Hatanaka
- Division of Materials Science and Engineering, Graduate School of Engineering, Tokyo Denki University, Tokyo, Japan
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4
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Koli M, Gupta S, Chakraborty S, Ghosh A, Ghosh R, Wadawale AP, Ghanty TK, Patro BS, Mula S. Design and Synthesis of BODIPY-Hetero[5]helicenes as Heavy-Atom-Free Triplet Photosensitizers for Photodynamic Therapy of Cancer. Chemistry 2023; 29:e202301605. [PMID: 37314387 DOI: 10.1002/chem.202301605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/15/2023]
Abstract
Designing heavy-atom-free triplet photosensitizers (PSs) is a challenge for the efficient photodynamic therapy (PDT) of cancer. Helicenes are twisted polycyclic aromatic hydrocarbons (PAHs) with an efficient intersystem crossing (ISC) that is proportional to their twisting angle. But their difficult syntheses and weak absorption profile in the visible spectral region restrict their use as heavy-atom-free triplet PSs for PDT. On the other hand, boron-containing PAHs, BODIPYs are highly recognized for their outstanding optical properties. However, planar BODIPY dyes has low ISC and thus they are not very effective as PDT agents. We have designed and synthesized fused compounds containing both BODIPY and hetero[5]helicene structures to develop red-shifted chromophores with efficient ISC. One of the pyrrole units of the BODIPY core was also replaced by a thiazole unit to further enhance the triplet conversion. All the fused compounds have helical structure, and their twisting angles are also increased by substitutions at the boron centre. The helical structures of the BODIPY-hetero[5]helicenes were confirmed by X-ray crystallography and DFT structure optimization. The designed BODIPY-hetero[5]helicenes showed superior optical properties and high ISC with respect to [5]helicene. Interestingly their ISC efficiencies increase proportionally with their twisting angles. This is the first report on the relationship between the twisting angle and the ISC efficiency in twisted BODIPY-based compounds. Theoretical calculations showed that energy gap of the S1 and T1 states decreases in BODIPY-hetero[5]helicene as compared to planar BODIPY. This enhances the ISC rate in BODIPY-hetero[5]helicene, which is responsible for their high generation of singlet oxygen. Finally, their potential applications as PDT agents were investigated, and one BODIPY-hetero[5]helicene showed efficient cancer cell killing upon photo-exposure. This new design strategy will be very useful for the future development of heavy-atom-free PDT agents.
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Affiliation(s)
- Mrunesh Koli
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Sonali Gupta
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Saikat Chakraborty
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Ayan Ghosh
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Rajib Ghosh
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - A P Wadawale
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Tapan K Ghanty
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
- Bio-Science Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Birija S Patro
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Soumyaditya Mula
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
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5
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Vacek J, Zatloukalova M, Bartheldyova E, Reha D, Minofar B, Bednarova K, Renciuk D, Coufal J, Fojta M, Zadny J, Gessini A, Rossi B, Storch J, Kabelac M. Hexahelicene DNA-binding: Minor groove selectivity, semi-intercalation and chiral recognition. Int J Biol Macromol 2023; 250:125905. [PMID: 37487990 DOI: 10.1016/j.ijbiomac.2023.125905] [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: 03/24/2023] [Revised: 07/03/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023]
Abstract
In this contribution, we focused on a fundamental study targeting the interaction of water-soluble [6]helicene derivative 1 (1-butyl-3-(2-methyl[6]helicenyl)-imidazolium bromide) with double-stranded (ds) DNA. A synthetic 30-base pair duplex, plasmid, chromosomal calf thymus and salmon DNA were investigated using electrochemistry, electrophoresis and spectroscopic tools supported by molecular dynamics (MD) and quantum mechanical approaches. Both experimental and theoretical work revealed the minor groove binding of 1 to the dsDNA. Both the positively charged imidazole ring and hydrophobic part of the side chain contributed to the accommodation of 1 into the dsDNA structure. Neither intercalation into the duplex DNA nor the stable binding of 1 to single-stranded DNA were found in topoisomerase relaxation experiments with structural components of 1, i.e. [6]helicene (2) and 1-butyl-3-methylimidazolium bromide (3), nor by theoretical calculations. Finally, the binding of optically pure enantiomers (P)-1 and (M)-1 was studied using circular dichroism spectroscopy, isothermal titration calorimetry and UV Resonance Raman (UVRR) methods. Using MD and quantum mechanical methods, minor groove and semi-intercalation were proposed for compound 1 as the predominant binding modes. From the UVRR findings, we also can conclude that 1 tends to preferentially interact with adenine and guanine residues in the structure of dsDNA.
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Affiliation(s)
- Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic.
| | - Martina Zatloukalova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
| | | | - David Reha
- IT4Innovations, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Babak Minofar
- Department of Chemistry, Faculty of Science, University of South Bohemia, Branisovska 31, 370 05 Ceske Budejovice, Czech Republic
| | - Klara Bednarova
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, 612 00 Brno, Czech Republic
| | - Daniel Renciuk
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, 612 00 Brno, Czech Republic
| | - Jan Coufal
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, 612 00 Brno, Czech Republic
| | - Miroslav Fojta
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, 612 00 Brno, Czech Republic
| | - Jaroslav Zadny
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135, 165 02 Prague 6, Czech Republic
| | - Alessandro Gessini
- Elettra Sincrotrone Trieste S.C.p.A., S.S. 14 - Km 163.5, Basovizza, Trieste I-34149, Italy
| | - Barbara Rossi
- Elettra Sincrotrone Trieste S.C.p.A., S.S. 14 - Km 163.5, Basovizza, Trieste I-34149, Italy
| | - Jan Storch
- Institute of Chemical Process Fundamentals of the AS CR, v.v.i., Rozvojova 135, 165 02 Prague 6, Czech Republic.
| | - Martin Kabelac
- Department of Chemistry, Faculty of Science, University of South Bohemia, Branisovska 31, 370 05 Ceske Budejovice, Czech Republic.
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6
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Zhang X, Sukhanov AA, Liu X, Taddei M, Zhao J, Harriman A, Voronkova VK, Wan Y, Dick B, Di Donato M. Origin of intersystem crossing in highly distorted organic molecules: a case study with red light-absorbing N, N, O, O-boron-chelated Bodipys. Chem Sci 2023; 14:5014-5027. [PMID: 37206394 PMCID: PMC10189861 DOI: 10.1039/d3sc00854a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/14/2023] [Indexed: 05/21/2023] Open
Abstract
To explore the relationship between the twisted π-conjugation framework of aromatic chromophores and the efficacy of intersystem crossing (ISC), we have studied a N,N,O,O-boron-chelated Bodipy derivative possessing a severely distorted molecular structure. Surprisingly, this chromophore is highly fluorescent, showing inefficient ISC (singlet oxygen quantum yield, ΦΔ = 12%). These features differ from those of helical aromatic hydrocarbons, where the twisted framework promotes ISC. We attribute the inefficient ISC to a large singlet-triplet energy gap (ΔES1/T1 = 0.61 eV). This postulate is tested by critical examination of a distorted Bodipy having an anthryl unit at the meso-position, for which ΦΔ is increased to 40%. The improved ISC yield is rationalized by the presence of a T2 state, localized on the anthryl unit, with energy close to that of the S1 state. The electron spin polarization phase pattern of the triplet state is (e, e, e, a, a, a), with the Tz sublevel of the T1 state overpopulated. The small zero-field splitting D parameter (-1470 MHz) indicates that the electron spin density is delocalized over the twisted framework. It is concluded that twisting of π-conjugation framework does not necessarily induce ISC, but S1/Tn energy matching may be a generic feature for increasing ISC for a new-generation of heavy atom-free triplet photosensitizers.
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Affiliation(s)
- Xue Zhang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology Dalian 116024 P. R. China
| | - Andrey A Sukhanov
- Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan 420029 Russia
| | - Xi Liu
- College of Chemistry, Beijing Normal University Beijing 100875 P. R. China
| | - Maria Taddei
- LENS (European Laboratory for Non-Linear Spectroscopy) Via N. Carrara 1 50019 Sesto Fiorentino (FI) Italy
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology Dalian 116024 P. R. China
| | - Anthony Harriman
- Molecular Photonics Laboratory, School of Natural and Environmental Sciences, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Violeta K Voronkova
- Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan 420029 Russia
| | - Yan Wan
- College of Chemistry, Beijing Normal University Beijing 100875 P. R. China
| | - Bernhard Dick
- Lehrstuhl für Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Universität Regensburg D-93053 Regensburg Germany
| | - Mariangela Di Donato
- LENS (European Laboratory for Non-Linear Spectroscopy) Via N. Carrara 1 50019 Sesto Fiorentino (FI) Italy
- ICCOM, Istituto di Chimica dei Complessi OrganoMetallici Via Madonna del Piano 10 50019 Sesto Fiorentino (FI) Italy
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7
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Jana K, Sarkar D, Jaiswal P, Moorthy JN. Synthesis and Excited-State Properties of Donor-Acceptor Azahelical Coumarins. J Org Chem 2023. [PMID: 37114852 DOI: 10.1021/acs.joc.2c02810] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
A set of three donor-acceptor azahelical coumarins (DA-AHCs), namely, H-AHC, Me-AHC, and Ph-AHC, were rationally designed and synthesized, and their excited-state properties were comprehensively investigated. All three DA-AHCs are shown to display very high fluorosolvatochromic shifts as a result of significant intramolecular charge transfer in their excited states. The para-quinoidal forms of the latter apparently contribute predominantly to large dipole moments in their excited states. By virtue of the fact that these helical systems structurally incorporate a highly fluorescent coumarin dye, they exhibit high quantum yields in both solution and solid states. Indeed, their emission behaviors in the crystalline media are shown to be remarkably correlated with their respective crystal packings. Incisive analyses demonstrate (i) strengthening of hydrogen bonding in the excited state promotes quenching (H-AHC), (ii) efficient crystal packing promotes high emission (Me-AHC) by precluding deactivations via vibrational motions, and (iii) loose crystal packing contributes to excited-state deactivation to account for low quantum yields of emission (Ph-AHC).
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Affiliation(s)
- Kanyashree Jana
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Debarghya Sarkar
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Preeti Jaiswal
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Jarugu Narasimha Moorthy
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Trivandrum 695551, India
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8
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Heavy Atom-Free Triplet Photosensitizers: Molecular Structure Design, Photophysical Properties and Application in Photodynamic Therapy. Molecules 2023; 28:molecules28052170. [PMID: 36903415 PMCID: PMC10004235 DOI: 10.3390/molecules28052170] [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: 01/15/2023] [Revised: 02/08/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Photodynamic therapy (PDT) is a promising method for the treatment of cancer, because of its advantages including a low toxicity, non-drug-resistant character, and targeting capability. From a photochemical aspect, a critical property of triplet photosensitizers (PSs) used for PDT reagents is the intersystem crossing (ISC) efficiency. Conventional PDT reagents are limited to porphyrin compounds. However, these compounds are difficult to prepare, purify, and derivatize. Thus, new molecular structure paradigms are desired to develop novel, efficient, and versatile PDT reagents, especially those contain no heavy atoms, such as Pt or I, etc. Unfortunately, the ISC ability of heavy atom-free organic compounds is usually elusive, and it is difficult to predict the ISC capability of these compounds and design novel heavy atom-free PDT reagents. Herein, from a photophysical perspective, we summarize the recent developments of heavy atom-free triplet PSs, including methods based on radical-enhanced ISC (REISC, facilitated by electron spin-spin interaction), twisted π-conjugation system-induced ISC, the use of fullerene C60 as an electron spin converter in antenna-C60 dyads, energetically matched S1/Tn states-enhanced ISC, etc. The application of these compounds in PDT is also briefly introduced. Most of the presented examples are the works of our research group.
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9
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Rajan B, Goel N, Bedekar AV. Synthesis and characterization of aza[7]helicenes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Enhancement of electrocatalytic oxygen evolution by chiral molecular functionalization of hybrid 2D electrodes. Nat Commun 2022; 13:3356. [PMID: 35688831 PMCID: PMC9187664 DOI: 10.1038/s41467-022-31096-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 05/31/2022] [Indexed: 11/08/2022] Open
Abstract
A sustainable future requires highly efficient energy conversion and storage processes, where electrocatalysis plays a crucial role. The activity of an electrocatalyst is governed by the binding energy towards the reaction intermediates, while the scaling relationships prevent the improvement of a catalytic system over its volcano-plot limits. To overcome these limitations, unconventional methods that are not fully determined by the surface binding energy can be helpful. Here, we use organic chiral molecules, i.e., hetero-helicenes such as thiadiazole-[7]helicene and bis(thiadiazole)-[8]helicene, to boost the oxygen evolution reaction (OER) by up to ca. 130 % (at the potential of 1.65 V vs. RHE) at state-of-the-art 2D Ni- and NiFe-based catalysts via a spin-polarization mechanism. Our results show that chiral molecule-functionalization is able to increase the OER activity of catalysts beyond the volcano limits. A guideline for optimizing the catalytic activity via chiral molecular functionalization of hybrid 2D electrodes is given.
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11
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Zhou L, Liu H, Tan J, Liu C, Cao XY, Narita A, Hu Y. Double Thia/sulfone[7]helicenes with Controlled Photophysical and Chiroptical Properties by Heteroatom Variation. Chem Asian J 2022; 17:e202200336. [PMID: 35638260 DOI: 10.1002/asia.202200336] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/23/2022] [Indexed: 11/07/2022]
Abstract
The development of helicenes with strong chiroptical response and controlled photophysics is highly desirable but challenging. In this work, double thia/sulfone[7]helicenes were newly synthesized to investigate the heteroatom effect on the photophysical and chiroptical properties of double heterohelicenes through comparison with the previous double oxa[7]helicene. By variation of the embedded heteroatoms from oxygen to sulfur, the absorption and emission were significantly red-shifted, along with the improved luminescence dissymmetry factor ( g lum ). In particular, double sulfone[7]helicene exhibited strong red to near-infrared (NIR) emission with g lum of 1.1×10 -3 , suggesting its potential as a NIR circularly polarized luminescence emitter.
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Affiliation(s)
- Long Zhou
- Central South University, College of Chemistry and Chemical Engneering, CHINA
| | - Haoliang Liu
- Xiamen University, Department of Chemistry and Chemical Engineering, CHINA
| | - Jingyun Tan
- Okinawa Institute of Science and Technology: Gakko Hojin Okinawa Kagaku Gijutsu Daigakuin Daigaku Gakuen, Organic and Carbon Nanomaterials Unit, JAPAN
| | - Chao Liu
- Central South University, College of Chemistry and Chemical Engneering, CHINA
| | - Xiao-Yu Cao
- Xiamen University, Department of Chemistry and Chemical Engineering, CHINA
| | - Akimitsu Narita
- Okinawa Institute of Science and Technology Graduate University, Organic and Carbon Nanomaterials Unit, JAPAN
| | - Yunbin Hu
- Central South University, College of Chemistry and Chemical Engneering, No. 932 Lushan South Road, 4100083, Changsha, CHINA
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12
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Abstract
We report on the synthesis of a novel class of functionalized thia[6]helicenes and a thia[5]helicene, containing a benzothiophene unit and a second heteroatom embedded in the helix (i.e., nitrogen and oxygen) or a pyrene or a spirobifluorene moiety. These systems are obtained through straightforward and general procedures that involve: (i) palladium-catalyzed annulation of iodo-atropoisomers with internal alkynes and (ii) Suzuki coupling of iodo-atropoisomers with phenyl boronic acid followed by a Mallory-type reaction. Both experimental and theoretical studies on the configurational stability of some selected thia[6]helicenes confirmed their stability toward racemization at room temperature, while the pyrene-based thia[5]helicene was found to be unstable. Moreover, the configuration assignment for one representative thiahelicene was established through the comparison between experimental and theoretical circular dichroism (CD) spectra. A systematic study of the photophysical properties of both thiahelicenes and the corresponding atropoisomers has been carried out to provide a complete overview on the new molecules proposed in this work. The obtained data showed regular trends in all the thiahelicene series with spectroscopic traits in line with those previously observed for similar heterohelicenes.
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13
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Abhervé A, Mastropasqua Talamo M, Vanthuyne N, Zinna F, Di Bari L, Grasser M, Le Guennic B, Avarvari N. Chiral Emissive Lanthanide Complexes from Enantiopure [6]Helicene‐bis(pyrazolyl)‐pyridine Ligands. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Francesco Zinna
- University of Pisa: Universita degli Studi di Pisa Chemistry ITALY
| | - Lorenzo Di Bari
- Università di Pisa: Universita degli Studi di Pisa Chemistry ITALY
| | | | | | - Narcis Avarvari
- University of Angers UMR 6200 CNRS-Univ. d'Angers 2 Bd. LavoisierBat. K 49045 Angers FRANCE
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14
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Agrawal AR, Kumar NR, Choudhury A, Zade SS. Synthesis of bent-shaped π-extended thienoacenes from 2,5-distannylated 3,4-dialkynethiophene. Chem Commun (Camb) 2021; 57:9538-9541. [PMID: 34546251 DOI: 10.1039/d1cc04283a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bent-shaped thienoacenes show promise as next-generation organic semiconductors. Here we present the synthesis of an air-stable, pure and easily scalable thiophene precursor, 2,5-distannylated-3,4-dialkyne thiophene, starting from 3,4-dialkyne thiophene in quantitative yields. This precursor has been used for the synthesis of a versatile class of syn-thienoacenes comprising up to 13 fused rings, helical acenes and donor-acceptor acenes.
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Affiliation(s)
- Abhijeet R Agrawal
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, Nadia, West Bengal, India.
| | - Neha Rani Kumar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, Nadia, West Bengal, India.
| | - Aditya Choudhury
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, Nadia, West Bengal, India.
| | - Sanjio S Zade
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, Nadia, West Bengal, India.
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15
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Pakulski P, Pinkowicz D. 1,2,5-Thiadiazole 1,1-dioxides and Their Radical Anions: Structure, Properties, Reactivity, and Potential Use in the Construction of Functional Molecular Materials. Molecules 2021; 26:4873. [PMID: 34443461 PMCID: PMC8400987 DOI: 10.3390/molecules26164873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022] Open
Abstract
This work provides a summary of the preparation, structure, reactivity, physicochemical properties, and main uses of 1,2,5-thiadiazole 1,1-dioxides in chemistry and material sciences. An overview of all currently known structures containing the 1,2,5-thiadiazole 1,1-dioxide motif (including the anions radical species) is provided according to the Cambridge Structural Database search. The analysis of the bond lengths typical for neutral and anion radical species is performed, providing a useful tool for unambiguous assessment of the valence state of the dioxothiadiazole-based compounds based solely on the structural data. Theoretical methodologies used in the literature to describe the dioxothiadiazoles are also shortly discussed, together with the typical 'fingerprint' of the dioxothiadiazole ring reported by means of various spectroscopic techniques (NMR, IR, UV-Vis). The second part describes the synthetic strategies leading to 1,2,5-thiadiazole 1,1-dioxides followed by the discussion of their electrochemistry and reactivity including mainly the chemical methods for the successful reduction of dioxothiadiazoles to their anion radical forms and the ability to form coordination compounds. Finally, the magnetic properties of dioxothiadiazole radical anions and the metal complexes involving dioxothiadiazoles as ligands are discussed, including simple alkali metal salts and d-block coordination compounds. The last section is a prospect of other uses of dioxothiadiazole-containing molecules reported in the literature followed by the perspectives and possible future research directions involving these compounds.
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Affiliation(s)
- Paweł Pakulski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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16
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Ikai T, Yamakawa S, Suzuki N, Yashima E. One-Step Simultaneous Synthesis of Circularly Polarized Luminescent Multiple Helicenes Using a Chrysene Framework. Chem Asian J 2021; 16:769-774. [PMID: 33449407 DOI: 10.1002/asia.202100035] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 11/12/2022]
Abstract
A series of multiple helicenes was simultaneously synthesized in one step by intramolecular cyclization of a single chrysene derivative containing two 2-[(4-alkoxyphenyl)ethynyl]phenyl units accompanied by rearrangements of the aryl pendants. The electrophile-induced double cyclization with or without aryl migrations proceeded efficiently under acidic conditions to afford annulative π-extension of the chrysene units and produced quadruple (QH-2), triple (TH-2), and double (DH-2) helicenes containing [4]- and/or [5]helicene frameworks with dynamic and/or static helicene chirality in one step. Three multiple helicenes' structures were determined by X-ray crystallography and/or density functional theory calculations. The multiple TH-2 and DH-2 helicenes were separated into enantiomers because of the stable one and two [5]helicene moieties, respectively, and showed intense circular dichroism and circularly polarized luminescence. Although QH-2, which comprises four [4]helicene subunits, was not resolved into enantiomers, the TH-2 enantiomers were further separated into a pair of diastereomers at low temperature resulting from their substituted [4]helicene chirality.
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Affiliation(s)
- Tomoyuki Ikai
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Shoya Yamakawa
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Nozomu Suzuki
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Eiji Yashima
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
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17
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Affiliation(s)
- Tadashi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University,2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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18
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Savchuk M, Vertueux S, Cauchy T, Loumaigne M, Zinna F, Di Bari L, Zigon N, Avarvari N. Schiff-base [4]helicene Zn(II) complexes as chiral emitters. Dalton Trans 2021; 50:10533-10539. [PMID: 34259673 DOI: 10.1039/d1dt01752g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The controlled preparation of chiral emissive transition metal complexes is fundamental in the field of circularly polarized luminescence (CPL) active molecular materials. For this purpose, enantiopure Zn(ii) complexes 1 and 2 based on a tetradentate salen ligand surrounded by [4]helicene moieties, together with their racemic counterpart 3, have been herein synthesized. Chirality is primarily brought about by chiral 1,2-cyclohexane-diamines. Alternatively, achiral complex 4 based on ortho-phenylene-diamine has been prepared as well. Single crystal X-ray diffraction analyses have been performed on helicenic intermediates 8 and 9 and complexes 1 and 4. Complexes 1 and 4 display the typical tetradentate O,N,N,O coordination around Zn(ii) characteristic of salen ligands, and bear two [4]helicene moieties. The zinc complexes are luminescent in the visible range around 560 nm at room temperature in aerated solutions with the QY reaching ca. 15% for a luminescence lifetime of 5.5 ns. The optical activities of these complexes have been assessed by CD and CPL, and compared to DFT calculations.
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Affiliation(s)
- Mariia Savchuk
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France.
| | - Steven Vertueux
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France.
| | - Thomas Cauchy
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France.
| | | | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi, 13, 56124, Pisa, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi, 13, 56124, Pisa, Italy
| | - Nicolas Zigon
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France.
| | - Narcis Avarvari
- Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-49000 Angers, France.
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19
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Wang Z, Huang L, Yan Y, El‐Zohry AM, Toffoletti A, Zhao J, Barbon A, Dick B, Mohammed OF, Han G. Elucidation of the Intersystem Crossing Mechanism in a Helical BODIPY for Low-Dose Photodynamic Therapy. Angew Chem Int Ed Engl 2020; 59:16114-16121. [PMID: 32449273 PMCID: PMC7540422 DOI: 10.1002/anie.202005269] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Indexed: 12/22/2022]
Abstract
Intersystem crossing (ISC) of triplet photosensitizers is a vital process for fundamental photochemistry and photodynamic therapy (PDT). Herein, we report the co-existence of efficient ISC and long triplet excited lifetime in a heavy atom-free bodipy helicene molecule. Via theoretical computation and time-resolved EPR spectroscopy, we confirmed that the ISC of the bodipy results from its twisted molecular structure and reduced symmetry. The twisted bodipy shows intense long wavelength absorption (ϵ=1.76×105 m-1 cm-1 at 630 nm), satisfactory triplet quantum yield (ΦT =52 %), and long-lived triplet state (τT =492 μs), leading to unprecedented performance as a triplet photosensitizer for PDT. Moreover, nanoparticles constructed with such helical bodipy show efficient PDT-mediated antitumor immunity amplification with an ultra-low dose (0.25 μg kg-1 ), which is several hundred times lower than that of the existing PDT reagents.
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Affiliation(s)
- Zhijia Wang
- State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of Technology2 Ling Gong RoadDalian116024China
| | - Ling Huang
- Department of Biochemistry and Molecular PharmacologyUniversity of Massachusetts Medical SchoolWorcesterMassachusetts01605USA
| | - Yuxin Yan
- State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of Technology2 Ling Gong RoadDalian116024China
| | - Ahmed M. El‐Zohry
- Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955-6900Kingdom of Saudi Arabia
| | - Antonio Toffoletti
- Dipartimento di Scienze ChimicheUniversità degli Studi di PadovaVia Marzolo 135121PadovaItaly
| | - Jianzhang Zhao
- State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of Technology2 Ling Gong RoadDalian116024China
| | - Antonio Barbon
- Dipartimento di Scienze ChimicheUniversità degli Studi di PadovaVia Marzolo 135121PadovaItaly
| | - Bernhard Dick
- Lehrstuhl für Physikalische ChemieInstitut für Physikalische und Theoretische ChemieUniversität RegensburgUniversitätsstr. 3193053RegensburgGermany
| | - Omar F. Mohammed
- Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955-6900Kingdom of Saudi Arabia
| | - Gang Han
- Department of Biochemistry and Molecular PharmacologyUniversity of Massachusetts Medical SchoolWorcesterMassachusetts01605USA
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20
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Kancherla S, Jørgensen KB. Synthesis of Phenacene-Helicene Hybrids by Directed Remote Metalation. J Org Chem 2020; 85:11140-11153. [PMID: 32786610 PMCID: PMC7498163 DOI: 10.1021/acs.joc.0c01097] [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] [Indexed: 12/28/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) with six and seven rings were synthesized via directed metalation and cross-coupling of chrysenyl N,N-diethyl carboxamides with o-tolyl and methylnaphthalenyl derivatives. In the presence of competing ortho sites, the site selectivity in iodination of chrysenyl amides by directed ortho metalation (DoM) was influenced by the lithium base. The catalyst ligand bite angle was presumably important in the cross-coupling of sterically hindered bulky PAHs. Subsequent directed remote metalation of biaryls under standard conditions and at elevated temperatures afforded various fused six- and seven-ring PAHs, all in good yields and with fluorescent properties.
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Affiliation(s)
- Sindhu Kancherla
- Department of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, N-4036 Stavanger, Norway
| | - Kåre B Jørgensen
- Department of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, N-4036 Stavanger, Norway
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21
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Kawashima T, Matsumoto Y, Sato T, Yamada YMA, Kono C, Tsurusaki A, Kamikawa K. Synthesis, Structure, and Complexation of an S-Shaped Double Azahelicene with Inner-Edge Nitrogen Atoms. Chemistry 2020; 26:13170-13176. [PMID: 32459379 DOI: 10.1002/chem.202002405] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/25/2020] [Indexed: 01/12/2023]
Abstract
An S-shaped double azahelicene (1) was synthesized in excellent yield by a palladium-catalyzed double dehydrogenative C-H coupling reaction. The stereochemistry of 1 was confirmed to be dl by single-crystal X-ray diffraction analysis. Selective formation of dl-1 was attributed to the isomerization of the kinetically controlled product (meso-1) into the more thermodynamically stable dl-1 under the applied reaction conditions. dl-1 can coordinate to palladium(II) in a bidentate trans-chelating fashion, which was confirmed by X-ray absorption fine structure (XAFS) as well as by X-ray photoelectron spectroscopy (XPS), diffuse reflectance (DR) UV/Vis, and far-infrared (FIR) absorption spectroscopy. Theoretical calculations of palladium complex 16 revealed a weak attractive interaction between palladium and carbon atoms on the central dimethoxynaphthalene core, which could facilitate a disproportionation between a trans-chelating (dl-1)⋅PdCl2 complex and PdCl2 to form 16.
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Affiliation(s)
- Takahiro Kawashima
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Yuki Matsumoto
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Takuma Sato
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Yoichi M A Yamada
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Choji Kono
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
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22
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Wang Z, Huang L, Yan Y, El‐Zohry AM, Toffoletti A, Zhao J, Barbon A, Dick B, Mohammed OF, Han G. Elucidation of the Intersystem Crossing Mechanism in a Helical BODIPY for Low‐Dose Photodynamic Therapy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005269] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Zhijia Wang
- State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology 2 Ling Gong Road Dalian 116024 China
| | - Ling Huang
- Department of Biochemistry and Molecular Pharmacology University of Massachusetts Medical School Worcester Massachusetts 01605 USA
| | - Yuxin Yan
- State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology 2 Ling Gong Road Dalian 116024 China
| | - Ahmed M. El‐Zohry
- Division of Physical Sciences and Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Antonio Toffoletti
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Via Marzolo 1 35121 Padova Italy
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology 2 Ling Gong Road Dalian 116024 China
| | - Antonio Barbon
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Via Marzolo 1 35121 Padova Italy
| | - Bernhard Dick
- Lehrstuhl für Physikalische Chemie Institut für Physikalische und Theoretische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Omar F. Mohammed
- Division of Physical Sciences and Engineering King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology University of Massachusetts Medical School Worcester Massachusetts 01605 USA
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23
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Yubuta A, Hosokawa T, Gon M, Tanaka K, Chujo Y, Tsurusaki A, Kamikawa K. Enantioselective Synthesis of Triple Helicenes by Cross-Cyclotrimerization of a Helicenyl Aryne and Alkynes via Dynamic Kinetic Resolution. J Am Chem Soc 2020; 142:10025-10033. [DOI: 10.1021/jacs.0c01723] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ayaka Yubuta
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomoka Hosokawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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24
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium‐Catalyzed Highly Diastereo‐ and Enantioselective Synthesis of a Configurationally Stable S‐Shaped Double Helicene‐Like Molecule. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001794] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takashi Matsumoto
- Rigaku Corporation 3-9-12 Matsubara-cho Akishima Tokyo 196-8666 Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
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25
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium-Catalyzed Highly Diastereo- and Enantioselective Synthesis of a Configurationally Stable S-Shaped Double Helicene-Like Molecule. Angew Chem Int Ed Engl 2020; 59:11020-11027. [PMID: 32237104 DOI: 10.1002/anie.202001794] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/25/2020] [Indexed: 12/13/2022]
Abstract
An S-shaped double helicene-like molecule (>99 % ee), possessing stable helical chirality, has been synthesized by the rhodium(I)/difluorphos complex-catalyzed highly diastereo- and enantioselective intramolecular double [2+2+2] cycloaddition of a 2-naphthol- and benzene-linked hexayne. The collision between two terminal naphthalene rings destabilizes the helical chirality of the S-shaped double helicene-like molecule, but the introduction of two additional fused benzene rings significantly increases the configurational stability. Thus, no epimerization and racemization were observed even at 100 °C. The enantiopure S-shaped double helicene-like molecule forms a trimer through the multiple C-H⋅⋅⋅π and C-H⋅⋅⋅O interactions in the solid-state. The trimers stack to form columnar packing structures, in which neighboring stacks have opposite dipole directions. The accumulation of helical structures in the same direction in the S-shaped double helicene-like molecule enhanced the chiroptical properties.
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Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Takashi Matsumoto
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo, 196-8666, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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26
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Zhao Y, Ding J, Han X, Geng T, Zhou X, Hu C, Wang Y, Xiao G, Zou B, Hou H. Tuning the optical properties of N-aryl benzothiadiazole via Cu( ii)-catalyzed intramolecular C–H amination: the impact of the molecular structure on aggregation and solid state luminescence. Org Chem Front 2020. [DOI: 10.1039/d0qo00915f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The optical performance of 1–3 was influenced by the subtle change of the molecular structure as expected.
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27
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Xu N, Zheng A, Wei Y, Yuan Y, Zhang J, Lei M, Wang P. D–π–D molecular semiconductors for perovskite solar cells: the superior role of helical versus planar π-linkers. Chem Sci 2020. [DOI: 10.1039/d0sc00362j] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A thia[5]helicene based molecular semiconductor maintains π–π stacking, ensuring a large domain of molecular aggregates and a high hole mobility.
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Affiliation(s)
- Niansheng Xu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Aibin Zheng
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Yuefang Wei
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Yi Yuan
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Jing Zhang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Ming Lei
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Peng Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
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28
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Mukhopadhyay A, Jana K, Hossen T, Sahu K, Moorthy JN. Coumarin-Annelated Regioisomeric Heptahelicenes: Influence of Helicity on Excited-State Properties and Chiroptical Properties. J Org Chem 2019; 84:10658-10668. [PMID: 31389698 DOI: 10.1021/acs.joc.9b01126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two regioisomeric pairs of heptahelical mono- and biscoumarins that are differentiated by "inward" and "outward" disposition of the pyran-2-one moiety have been synthesized and investigated to understand the influence of helicity on excited-state and chiroptical properties. A slight variation in the helicities is found to manifest in contrasting excited-state properties of coumarin-annelated heptahelicenes; in addition to the intramolecular charge transfer, structural relaxation in the excited state is shown from theoretical calculations to cause decrease in the fluorescence quantum yield for a system with higher helicity. The optically pure enantiomers of heptahelical coumarins exhibit helicity-dependent chiroptical properties, namely, specific rotations, molar ellipticities, Cotton effects, and anisotropic dissymmetry factors. Theoretical calculations point to factors that are not readily explicable.
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Affiliation(s)
- Arindam Mukhopadhyay
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
| | - Kanyashree Jana
- Department of Chemistry , Indian Institute of Technology , Kanpur 208016 , India
| | - Tousif Hossen
- Department of Chemistry , Indian Institute of Technology , Guwahati 781039 , India
| | - Kalyanasis Sahu
- Department of Chemistry , Indian Institute of Technology , Guwahati 781039 , India
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29
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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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30
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Zborovsky L, Tigger‐Zaborov H, Maayan G. Sequence and Structure of Peptoid Oligomers Can Tune the Photoluminescence of an Embedded Ruthenium Dye. Chemistry 2019; 25:9098-9107. [DOI: 10.1002/chem.201901494] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/01/2019] [Indexed: 01/31/2023]
Affiliation(s)
| | | | - Galia Maayan
- Technion-Israel Institute of Technology Haifa Israel
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31
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Aharon T, Caricato M. Configuration Space Analysis of the Specific Rotation of Helicenes. J Phys Chem A 2019; 123:4406-4418. [DOI: 10.1021/acs.jpca.9b01823] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tal Aharon
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
| | - Marco Caricato
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
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32
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Pop F, Zigon N, Avarvari N. Main-Group-Based Electro- and Photoactive Chiral Materials. Chem Rev 2019; 119:8435-8478. [DOI: 10.1021/acs.chemrev.8b00770] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Flavia Pop
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
| | - Nicolas Zigon
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou,
UMR 6200 CNRS-Université d’Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
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33
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Kimura Y, Shibata Y, Noguchi K, Tanaka K. Enantioselective Synthesis and Epimerization Behavior of a Chiral S‐Shaped [11]Helicene‐Like Molecule Having Collision between Terminal Benzene Rings. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801694] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yuki Kimura
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center Tokyo University of Agriculture and Technology Koganei 184‐8588 Tokyo Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology O‐okayama, Meguro‐ku 152‐8550 Tokyo Japan
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34
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OuYang J, Crassous J. Chiral multifunctional molecules based on organometallic helicenes: Recent advances. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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35
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Kamikawa K, Den H, Tsurusaki A, Nagata T, Miura M. Synthesis of Substituted Helicenes by Ir-Catalyzed Annulative Coupling of Biarylcarboxylic Acid Chlorides with Alkynes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Hiroakira Den
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Tomoya Nagata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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36
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Lee J, Kalin AJ, Wang C, Early JT, Al-Hashimi M, Fang L. Donor–acceptor conjugated ladder polymer via aromatization-driven thermodynamic annulation. Polym Chem 2018. [DOI: 10.1039/c7py02059g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction of coplanar conjugated ladder polymers featuring alternating donor–acceptor units has been achieved in high efficiency using ring-closing olefin metathesis.
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Affiliation(s)
- Jongbok Lee
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | | | - Chenxu Wang
- Department of Materials Science & Engineering
- Texas A&M University
- College Station
- USA
| | - Julia T. Early
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | | | - Lei Fang
- Department of Chemistry
- Texas A&M University
- College Station
- USA
- Department of Materials Science & Engineering
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37
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Mukhopadhyay A, Hossen T, Ghosh I, Koner AL, Nau WM, Sahu K, Moorthy JN. Helicity-Dependent Regiodifferentiation in the Excited-State Quenching and Chiroptical Properties of Inward/Outward Helical Coumarins. Chemistry 2017; 23:14797-14805. [PMID: 28792106 DOI: 10.1002/chem.201701787] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Indexed: 01/30/2023]
Abstract
Influence of helicity on the excited-state as well as chiroptical properties of two sets of regiohelical coumarins that are differentiated by "inward" and "outward" disposition of the pyran-2-one ring has been investigated. A subtle difference in the helicities manifests in divergent excited-state properties and significant differences in the dipole moments. The latter permit heretofore unprecedented regiodifferentiation in the O-H⋅⋅⋅O hydrogen-bond assisted electron-transfer quenching by phenols. Furthermore, the enantiopure hexahelical coumarins exhibit strong Cotton effects and lend themselves to a very high differentiation in the specific rotations and anisotropic dissymmetry factors. The specific rotation observed for 6-in turns out being the highest of the values reported for all hexahelicenes reported so far.
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Affiliation(s)
| | - Tousif Hossen
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, India
| | - Indrajit Ghosh
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany
| | - Apurba Lal Koner
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, 462066, India
| | - Werner M Nau
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, India
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38
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Hellou N, Srebro‐Hooper M, Favereau L, Zinna F, Caytan E, Toupet L, Dorcet V, Jean M, Vanthuyne N, Williams JAG, Di Bari L, Autschbach J, Crassous J. Enantiopure Cycloiridiated Complexes Bearing a Pentahelicenic N‐Heterocyclic Carbene and Displaying Long‐Lived Circularly Polarized Phosphorescence. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704263] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nora Hellou
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | | | - Ludovic Favereau
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
- Present address: Université de Genève Département de Chimie Organique Quai Ernest-Ansermet 30 1211 Genève 4 Switzerland
| | - Elsa Caytan
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Marion Jean
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - 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 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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39
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Hellou N, Srebro‐Hooper M, Favereau L, Zinna F, Caytan E, Toupet L, Dorcet V, Jean M, Vanthuyne N, Williams JAG, Di Bari L, Autschbach J, Crassous J. Enantiopure Cycloiridiated Complexes Bearing a Pentahelicenic N‐Heterocyclic Carbene and Displaying Long‐Lived Circularly Polarized Phosphorescence. Angew Chem Int Ed Engl 2017; 56:8236-8239. [DOI: 10.1002/anie.201704263] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Nora Hellou
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | | | - Ludovic Favereau
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
- Present address: Université de Genève Département de Chimie Organique Quai Ernest-Ansermet 30 1211 Genève 4 Switzerland
| | - Elsa Caytan
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes UMR 6226, Institut de Physique de Rennes, UMR 6251 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
| | - Marion Jean
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2 Marseille France
| | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - 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 CNRS Université de Rennes 1 Campus de Beaulieu 35042 Rennes Cedex France
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40
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Tsujihara T, Zhou DY, Suzuki T, Tamura S, Kawano T. Helically Chiral 1-Sulfur-Functionalized [6]Helicene: Synthesis, Optical Resolution, and Functionalization. Org Lett 2017; 19:3311-3314. [DOI: 10.1021/acs.orglett.7b01470] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tetsuya Tsujihara
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Da-Yang Zhou
- Comprehensive
Analysis Center, Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki 567-0047, Japan
| | - Takeyuki Suzuki
- Comprehensive
Analysis Center, Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki 567-0047, Japan
| | - Satoru Tamura
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Tomikazu Kawano
- Department
of Medicinal and Organic Chemistry, School of Pharmacy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
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41
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Biet T, Cauchy T, Sun Q, Ding J, Hauser A, Oulevey P, Bürgi T, Jacquemin D, Vanthuyne N, Crassous J, Avarvari N. Triplet state CPL active helicene–dithiolene platinum bipyridine complexes. Chem Commun (Camb) 2017; 53:9210-9213. [DOI: 10.1039/c7cc05198k] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The first chiral platinum dithiolene 2,2′-bipyridine complexes containing enantiopure [6]helicene-dithiolate ligands show CPL activity.
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Affiliation(s)
- Thomas Biet
- Laboratoire Moltech-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers
- France
| | - Thomas Cauchy
- Laboratoire Moltech-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers
- France
| | - Qinchao Sun
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva
- Switzerland
| | - Jie Ding
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva
- Switzerland
| | - Andreas Hauser
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva
- Switzerland
| | - Patric Oulevey
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva
- Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva
- Switzerland
| | - Denis Jacquemin
- Laboratoire CEISAM
- UMR CNRS 6230
- Université de Nantes
- 44322 Nantes Cedex 3
- France
| | | | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS - Université de Rennes 1
- Campus de Beaulieu
- 35042 Rennes Cedex
| | - Narcis Avarvari
- Laboratoire Moltech-Anjou
- Université d'Angers
- CNRS UMR 6200
- 49045 Angers
- France
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