1
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Bodzioch A, Obijalska E, Jakubowski R, Celeda M, Gardias A, Trzybiński D, Tokarz P, Szczytko J, Woźniak K, Kaszyński P. Electronic and Magnetic Interactions in 6-Oxoverdazyl Diradicals: Connection through N(1) vs C(3) Revisited. J Org Chem 2024; 89:6306-6321. [PMID: 38626755 PMCID: PMC11077500 DOI: 10.1021/acs.joc.4c00303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/11/2024] [Accepted: 03/29/2024] [Indexed: 04/18/2024]
Abstract
Four isomeric di-6-oxoverdazyl diradicals connected at their N(1) or C(3) positions with either 1,3- or 1,4-phenylene linkers were obtained and characterized by spectroscopic, electrochemical, magnetic, and structural methods. These results were compared to those for the corresponding 6-oxoverdazyl monoradicals. UV-vis spectroscopy demonstrated that only the N(1)-connected para-through-benzene diradical has a distinct spectrum with significant bathochromic and hypsochromic shifts relative to the remaining species. Electrochemical analysis revealed two one-electron reduction processes in all diradiacals, while only the N(1)-connected para-through-benzene diradical exhibits two one-electron oxidation processes separated by 0.10 V. Variable temperature EPR measurements in polystyrene solid solutions gave negative mean exchange interaction energies J for all diradicals, suggesting the dominance of conformers with significant intramolecular antiferromagnetic interactions for the meta-through-benzene isomers. DFT calculations predict a small preference for the triplet state with the ΔES-T of about 0.25 kcal mol-1 for both meta-through-benzene connected diradicals.
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Affiliation(s)
- Agnieszka Bodzioch
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90-363 Łódź, Poland
| | | | - Rafał Jakubowski
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90-363 Łódź, Poland
| | | | - Anita Gardias
- Institute
of Experimental Physics Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland
| | - Damian Trzybiński
- Biological
and Chemical Research Centre, University
of Warsaw, 02-089 Warsaw, Poland
| | - Paweł Tokarz
- Faculty of
Chemistry, University of Łódź, 91-403 Łódź, Poland
| | - Jacek Szczytko
- Institute
of Experimental Physics Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland
| | - Krzysztof Woźniak
- Biological
and Chemical Research Centre, University
of Warsaw, 02-089 Warsaw, Poland
| | - Piotr Kaszyński
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90-363 Łódź, Poland
- Faculty of
Chemistry, University of Łódź, 91-403 Łódź, Poland
- Department
of Chemistry, Middle Tennessee State University, Murfreesboro, Tennessee 37132, United States
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2
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Hadjichristov GB, Marinov YG. Photoluminescent Thin Films of Room-Temperature Glassy Tris(keto-hydrozone) Discotic Liquid Crystals and Their Nanocomposites with Single-Walled Carbon Nanotubes for Optoelectronics. ACS OMEGA 2023; 8:27102-27116. [PMID: 37546593 PMCID: PMC10398711 DOI: 10.1021/acsomega.3c02103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/06/2023] [Indexed: 08/08/2023]
Abstract
This study addresses the photoresponse of liquid-crystalline tris(keto-hydrozone) discotic (TKHD)-a star-shaped molecular structure with three branches. Object of our research interest was also TKHD filled with single-walled carbon nanotubes (SWCNTs) at a concentration of 1 wt %. At room temperature, the discotic liquid crystals in thin films (thickness 3 μm) of both TKHD and nanocomposite SWCNT/TKHD were in a glassy state. Such glassy thin films exhibited photoluminescence ranging from the deep-red to the near-infrared spectral region, being attractive for organic optoelectronics. The addition of SWCNTs to TKHD was found to stabilize the photoluminescence of TKHD, which is of significance for optoelectronic device applications. The photothermoelectrical response of highly conductive SWCNT/TKHD nanocomposite films was characterized by electrical impedance spectroscopy in the frequency range from 1 Hz to 1 MHz of the applied electric field. It was elucidated that the reversible photothermoelectrical effect in SWCNT/TKHD films occurs through SWCNTs and their network.
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Affiliation(s)
- Georgi B. Hadjichristov
- Laboratory
of Optics & Spectroscopy, Georgi Nadjakov Institute of Solid State
Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., Sofia BG-1784, Bulgaria
| | - Yordan G. Marinov
- Laboratory
of Liquid Crystals & Biomolecular Layers, Georgi Nadjakov Institute
of Solid State Physics, Bulgarian Academy
of Sciences, 72 Tzarigradsko
Chaussee Blvd., Sofia BG-1784, Bulgaria
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3
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Suleymanova A, Shafikov M, Chen X, Wang Y, Czerwieniec R, Bruce DW. Construction and Performance of OLED Devices Prepared from Liquid-crystalline TADF Materials. Phys Chem Chem Phys 2022; 24:22115-22121. [DOI: 10.1039/d2cp02684h] [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
The device performance is reported from three compounds which show both thermally activated delayed fluorescence and liquid crystallinity, which use the donor 3,6-bis(3,4-didodecyloxyphenyl)carbazole. Two of the compounds, whose photophysics were...
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4
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Ciastek-Iskrzycka S, Szczytko J, Monobe H, Pociecha D, Jasiński M, Kaszyński P. Paramagnetic ionic liquid crystals: Ion conductive bent-core derivatives of stable radicals. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Chahma M, Riopel R, Arteca G. Synthesis, characterization and modeling of stable radical functionalized monothiophenes. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1909590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M’hamed Chahma
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, Canada
| | - Remi Riopel
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, Canada
| | - Gustavo Arteca
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, Canada
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6
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Yano K, Hanebuchi T, Zhang XJ, Itoh Y, Uchida Y, Sato T, Matsuura K, Kagawa F, Araoka F, Aida T. Supramolecular Polymerization in Liquid Crystalline Media: Toward Modular Synthesis of Multifunctional Core-Shell Columnar Liquid Crystals. J Am Chem Soc 2019; 141:10033-10038. [PMID: 31140278 DOI: 10.1021/jacs.9b03961] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recently, we discovered a modular synthetic approach for constructing core-shell columnar liquid crystals (LCs) by supramolecular polymerization in LC media. In the present work, we successfully confirmed that our modular synthetic approach has the potential to be widely extended to the development of multifunctional columnar LCs. Herein, we constructed the first core-shell columnar LC that was proved to be orientable by both electric and magnetic fields by the supramolecular polymerization of NODiskNH* in a nematic LC medium of 4-cyano-4'-pentyloxybiphenyl (5OCB). NODiskNH* is a chiral benzenetricarboxamide derivative bearing 2,2,6,6-tetramethylpiperidine 1-oxyl termini, which is known to form a helical supramolecular polymer via a triple hydrogen-bonding array. NODiskNH* alone formed a hydrogen-bonded liquid phase without any long-range structural ordering. However, a nematic LC medium of 5OCB, when mixed with NODiskNH* at a molar ratio of 1:3, underwent a "structural order-increasing" mesophase transition, affording an optically active single LC phase with a hexagonally arranged core-shell columnar geometry in a temperature range from 113 to 51 °C. Unprecedentedly, this core-shell columnar LC can orient its columns both electrically and magnetically, resulting in unidirectional columnar ordering.
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Affiliation(s)
- Keiichi Yano
- Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Takahiro Hanebuchi
- Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Xu-Jie Zhang
- Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Yoshimitsu Itoh
- Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Yoshiaki Uchida
- Division of Chemical Engineering, Graduate School of Engineering Science , Osaka University , 1-3 Machikaneyama-cho , Toyonaka , Osaka 560-8531 , Japan
| | - Takuro Sato
- RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Keisuke Matsuura
- RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Fumitaka Kagawa
- RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan.,Department of Applied Physics, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Fumito Araoka
- RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.,RIKEN Center for Emergent Matter Science , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
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7
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Jasiński M, Szymańska K, Gardias A, Pociecha D, Monobe H, Szczytko J, Kaszyński P. Tuning the Magnetic Properties of Columnar Benzo[e
][1,2,4]triazin-4-yls with the Molecular Shape. Chemphyschem 2019; 20:636-644. [DOI: 10.1002/cphc.201800965] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/19/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Marcin Jasiński
- Faculty of Chemistry; University of Łódź; Tamka 12 91-403 Łódź Poland
| | | | - Anita Gardias
- Institute of Experimental Physics, Faculty of Physics; University of Warsaw; Pasteura 5 02-093 Warsaw Poland
| | - Damian Pociecha
- Faculty of Chemistry; University of Warsaw; Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Hirosato Monobe
- National Institute of Advanced Industrial Science and Technology (AIST); Kansai Centre; Ikeda Osaka 563-8577 Japan
| | - Jacek Szczytko
- Institute of Experimental Physics, Faculty of Physics; University of Warsaw; Pasteura 5 02-093 Warsaw Poland
| | - Piotr Kaszyński
- Faculty of Chemistry; University of Łódź; Tamka 12 91-403 Łódź Poland
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Łódź Poland
- Department of Chemistry; Middle Tennessee State University; Murfreesboro TN 37132 USA
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8
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Kaszyński P, Kapuściński S, Ciastek-Iskrzycka S. Liquid crystalline derivatives of heterocyclic radicals. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2019.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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9
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Takemoto Y, Zaytseva E, Suzuki K, Yoshioka N, Takanishi Y, Funahashi M, Uchida Y, Akita T, Park J, Sato S, Clevers S, Coquerel G, Mazhukin DG, Shimono S, Sugiyama M, Takahashi H, Yamauchi J, Tamura R. Unique Superparamagnetic-like Behavior Observed in Non-π-delocalized Nitroxide Diradical Compounds Showing Discotic Liquid Crystalline Phase. Chemistry 2018; 24:17293-17302. [PMID: 30378204 DOI: 10.1002/chem.201803534] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/24/2018] [Indexed: 01/09/2023]
Abstract
A unique superparamagnetic-like behavior and a large "positive magneto-LC effect" were observed in the solid phases and the hexagonal columnar (Colh ) liquid crystalline (LC) phase, respectively, of novel achiral non-π-delocalized nitroxide diradical compounds (R,S)-1, which showed polymorphism in the solid phases (solids I and II). The SQUID magnetization measurement revealed that (1) (R,S)-1 containing a small amount of racemic diastereomers (R*,R*)-1 possessed an unusual and large temperature-independent magnetic susceptibility (χTIM >0) component in the original nanocrystalline solid I that was responsible for the observed superparamagnetic-like behavior under low magnetic fields and did not arise from the contamination by extrinsic magnetic metal or metal ion impurities, besides ordinary temperature-dependent paramagnetic susceptibility (χpara >0) and temperature-independent diamagnetic susceptibility (χdia <0) components, (2) a large increase in molar magnetic susceptibility (χM ) (positive magneto-LC effect) that occurred at the solid I-to-liquid crystal transition upon heating was preserved as an additional χTIM increase in the resulting polymorphic nanocrystalline solid II by cooling, and (3) such unique magnetic phenomena were induced by thermal processing for (R,S)-1 or by adding a small amount of (R*,R*)-1 to (R,S)-1 as the impurity.
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Affiliation(s)
- Yusa Takemoto
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Elena Zaytseva
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan.,N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk State University, 9 Akademika Lavrentieva Ave., Novosibirsk 630090 (Russia), 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Katsuaki Suzuki
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Naoki Yoshioka
- Department of Applied Chemistry, Keio University, Yokohama, Kanagawa, 223-8522, Japan
| | - Yoichi Takanishi
- Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Masahiro Funahashi
- Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, Takamatsu, Kagawa, 761-0396, Japan
| | - Yoshiaki Uchida
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Takuya Akita
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Jayeong Park
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shuichi Sato
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Simon Clevers
- Normandie Université, SMS, EA 3233, Univ Rouen, Crystal Genesis Unit, 76821, Mont Saint-Aignan Cedex, France
| | - Gérard Coquerel
- Normandie Université, SMS, EA 3233, Univ Rouen, Crystal Genesis Unit, 76821, Mont Saint-Aignan Cedex, France
| | - Dmitrii G Mazhukin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk State University, 9 Akademika Lavrentieva Ave., Novosibirsk 630090 (Russia), 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Satoshi Shimono
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Masahito Sugiyama
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hiroki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Jun Yamauchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Rui Tamura
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, 606-8501, Japan
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10
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Zhulai D, Koval'chuk A, Bugaychuk S, Klimusheva G, Mirnaya T, Vitusevich S. Photoconductivity of ionic thermotropic liquid crystal with semiconductor nanoparticles. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Le T, Trevisan T, Lieu E, Brook DJR. Suzuki–Miyaura Coupling of Verdazyl Radicals. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601483] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thanh‐Ngoc Le
- Department of Chemistry San Jose State University One Washington Square 95126 San Jose CA USA
| | - Theresa Trevisan
- Department of Chemistry San Jose State University One Washington Square 95126 San Jose CA USA
| | - Elizabeth Lieu
- Department of Chemistry San Jose State University One Washington Square 95126 San Jose CA USA
| | - David J. R. Brook
- Department of Chemistry San Jose State University One Washington Square 95126 San Jose CA USA
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12
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Jasiński M, Szczytko J, Pociecha D, Monobe H, Kaszyński P. Substituent-Dependent Magnetic Behavior of Discotic Benzo[e][1,2,4]triazinyls. J Am Chem Soc 2016; 138:9421-4. [DOI: 10.1021/jacs.6b06444] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Marcin Jasiński
- Faculty
of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Jacek Szczytko
- Institute
of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Damian Pociecha
- Department
of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Hirosato Monobe
- National Institute of Advanced Industrial Science and Technology (AIST), Kansai Centre, Ikeda, Osaka 563-8577, Japan
| | - Piotr Kaszyński
- Faculty
of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
- Center
for Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
- Department
of Chemistry, Middle Tennessee State University, Murfreesboro, Tennessee 37-132, United States
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13
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Ciastek S, Kaszyński P, Pociecha D, Jasiński M. Induction of smectic polymorphism in bent-core derivatives of the 6-oxoverdazyl by partial fluorination of alkyl chains. RSC Adv 2016. [DOI: 10.1039/c6ra21383a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of bent-core mesogens 2[m,n] derived from the 6-oxoverdazyl radical and containing partially fluorinated alkyl tails was prepared and investigated by thermal, optical, XRD and EPR methods.
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Affiliation(s)
| | - Piotr Kaszyński
- Faculty of Chemistry
- University of Łódź
- 91-403 Łódź
- Poland
- Organic Materials Research Group
| | - Damian Pociecha
- Department of Chemistry
- University of Warsaw
- 02-089 Warsaw
- Poland
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14
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Constantinides CP, Koutentis PA. Stable N- and N/S-Rich Heterocyclic Radicals. ADVANCES IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/bs.aihch.2016.03.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Suzuki K, Takemoto Y, Takaoka S, Taguchi K, Uchida Y, Mazhukin DG, Grigor'ev IA, Tamura R. Chiral all-organic nitroxide biradical liquid crystals showing remarkably large positive magneto-LC effects. Chem Commun (Camb) 2016; 52:3935-8. [DOI: 10.1039/c5cc09202g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The liquid crystalline chiral nitroxide biradical (S,S,S,S)-3 synthesized has shown much larger ‘positive magneto-LC effects’ in the chiral nematic (N*) phase than the monoradical (S,S)-1.
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Affiliation(s)
- Katsuaki Suzuki
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Yusa Takemoto
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Shohei Takaoka
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Koji Taguchi
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Yoshiaki Uchida
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
- Japan Science and Technology Agency
| | - Dmitrii G. Mazhukin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
| | - Igor A. Grigor'ev
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
| | - Rui Tamura
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto 606-8501
- Japan
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16
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Wöhrle T, Wurzbach I, Kirres J, Kostidou A, Kapernaum N, Litterscheidt J, Haenle JC, Staffeld P, Baro A, Giesselmann F, Laschat S. Discotic Liquid Crystals. Chem Rev 2015; 116:1139-241. [PMID: 26483267 DOI: 10.1021/acs.chemrev.5b00190] [Citation(s) in RCA: 418] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tobias Wöhrle
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Iris Wurzbach
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Jochen Kirres
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Antonia Kostidou
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Nadia Kapernaum
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Juri Litterscheidt
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Johannes Christian Haenle
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Peter Staffeld
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Angelika Baro
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Frank Giesselmann
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Sabine Laschat
- Institut für Organische Chemie, and ‡Institut für Physikalische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70569 Stuttgart, Germany
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17
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air. Angew Chem Int Ed Engl 2015; 54:4842-6. [DOI: 10.1002/anie.201411462] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/20/2015] [Indexed: 11/11/2022]
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19
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Ciastek S, Jasiński M, Kaszyński P. 3-Substituted 6-oxoverdazyl bent-core nematic radicals: synthesis and characterization. RSC Adv 2015. [DOI: 10.1039/c5ra04119h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bent-core mesogens containing the 6-oxoverdazyl as the central angular unit exhibit rare nematic behavior.
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Affiliation(s)
| | | | - Piotr Kaszyński
- Faculty of Chemistry
- University of Łódź
- 91-403 Łódź
- Poland
- Department of Chemistry
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20
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Jasiński M, Pociecha D, Monobe H, Szczytko J, Kaszyński P. Tetragonal Phase of 6-Oxoverdazyl Bent-Core Derivatives with Photoinduced Ambipolar Charge Transport and Electrooptical Effects. J Am Chem Soc 2014; 136:14658-61. [PMID: 25285393 DOI: 10.1021/ja507594h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Marcin Jasiński
- Faculty
of Chemistry, University of Łódź, Tamka 12, 91403 Łódź, Poland
| | - Damian Pociecha
- Department
of Chemistry, University of Warsaw, 02-089 Warsaw, Poland
| | - Hirosato Monobe
- Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
| | - Jacek Szczytko
- Institute
of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża
69, 00-681 Warsaw, Poland
| | - Piotr Kaszyński
- Faculty
of Chemistry, University of Łódź, Tamka 12, 91403 Łódź, Poland
- Organic
Materials Research Group, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
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21
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Liu XY, Usui T, Hanna J. Self-Directed Orientation of Molecular Columns Based on n-Type Hexaazatrinaphthylenes (HATNAs) for Electron Transport. Chemistry 2014; 20:14207-12. [DOI: 10.1002/chem.201403472] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Indexed: 11/08/2022]
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22
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Ravat P, Marszalek T, Pisula W, Müllen K, Baumgarten M. Positive Magneto-LC Effect in Conjugated Spin-Bearing Hexabenzocoronene. J Am Chem Soc 2014; 136:12860-3. [DOI: 10.1021/ja507421x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Prince Ravat
- Max Planck Institute for Polymer Research, Ackermannweg-10, D-55128, Mainz, Germany
| | - Tomasz Marszalek
- Max Planck Institute for Polymer Research, Ackermannweg-10, D-55128, Mainz, Germany
| | - Wojciech Pisula
- Max Planck Institute for Polymer Research, Ackermannweg-10, D-55128, Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg-10, D-55128, Mainz, Germany
| | - Martin Baumgarten
- Max Planck Institute for Polymer Research, Ackermannweg-10, D-55128, Mainz, Germany
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23
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Price JT, Paquette JA, Harrison CS, Bauld R, Fanchini G, Gilroy JB. 6-Oxoverdazyl radical polymers with tunable electrochemical properties. Polym Chem 2014. [DOI: 10.1039/c4py00829d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
6-Oxoverdazyl radical polymers were synthesized and their tunable redox properties studied in solution and the solid-state.
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Affiliation(s)
- Jacquelyn T. Price
- Department of Chemistry
- The University of Western Ontario
- London N6A 5B7, Canada
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
| | - Joseph A. Paquette
- Department of Chemistry
- The University of Western Ontario
- London N6A 5B7, Canada
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
| | - Christopher S. Harrison
- Department of Chemistry
- The University of Western Ontario
- London N6A 5B7, Canada
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
| | - Reg Bauld
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London N6A 5B7, Canada
- Department of Physics and Astronomy
- The University of Western Ontario
| | - Giovanni Fanchini
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London N6A 5B7, Canada
- Department of Physics and Astronomy
- The University of Western Ontario
| | - Joe B. Gilroy
- Department of Chemistry
- The University of Western Ontario
- London N6A 5B7, Canada
- The Centre for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
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24
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Leitch AA, Korobkov I, Assoud A, Brusso JL. Non-innocent pyridyl nitrogens: unprecedented interconversion of N-bridgehead-thiadiazolium salts and thiatriazine in the generation of thiatriazinyl. Chem Commun (Camb) 2014; 50:4934-6. [DOI: 10.1039/c4cc01433b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Jasiński M, Gerding JS, Jankowiak A, Gębicki K, Romański J, Jastrzębska K, Sivaramamoorthy A, Mason K, Evans DH, Celeda M, Kaszyński P. Functional Group Transformations in Derivatives of 6-Oxoverdazyl. J Org Chem 2013; 78:7445-54. [DOI: 10.1021/jo400843y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcin Jasiński
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
| | - Jason S. Gerding
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Aleksandra Jankowiak
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Krzysztof Gębicki
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
| | - Jarosław Romański
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
| | - Katarzyna Jastrzębska
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
| | - Ajan Sivaramamoorthy
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Kristein Mason
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Donavan H. Evans
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Małgorzata Celeda
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
| | - Piotr Kaszyński
- Organic Materials
Research Group
Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
- Faculty of Chemistry, University of Łódź, Tamka 12, 91403
Łódź, Poland
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26
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Jankowiak A, Pociecha D, Monobe H, Szczytko J, Dębska Ż, Romański J, Kaszyński P. Induction of Columnar Discotic Behavior in Verdazyl Radicals with Alkylsulfanyl Substituents. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.736896] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Aleksandra Jankowiak
- a Department of Chemistry , Vanderbilt University , Nashville , TN , 37235 , USA
| | - Damian Pociecha
- b Department of Chemistry , University of Warsaw , 02-089 Warsaw , Poland
| | - Hirosato Monobe
- c Faculty of Physics , University of Warsaw , Hoża 69, 00-681 Warsaw , Poland
| | - Jacek Szczytko
- d National Institute of Advanced Industrial Science and Technology, AIST Kansai Centre , Ikeda , Osaka 563-8577 , Japan
| | - Żaneta Dębska
- e Faculty of Chemistry , University of Łódź , Tamka 12, 91403 , Łódź , Poland
| | - Jarosław Romański
- e Faculty of Chemistry , University of Łódź , Tamka 12, 91403 , Łódź , Poland
| | - Piotr Kaszyński
- a Department of Chemistry , Vanderbilt University , Nashville , TN , 37235 , USA
- e Faculty of Chemistry , University of Łódź , Tamka 12, 91403 , Łódź , Poland
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27
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Kawanaka Y, Shimizu A, Shinada T, Tanaka R, Teki Y. Using Stable Radicals To Protect Pentacene Derivatives from Photodegradation. Angew Chem Int Ed Engl 2013; 52:6643-7. [DOI: 10.1002/anie.201300595] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Indexed: 11/11/2022]
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28
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Kawanaka Y, Shimizu A, Shinada T, Tanaka R, Teki Y. Using Stable Radicals To Protect Pentacene Derivatives from Photodegradation. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300595] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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Jankowiak A, Kaszyński P. Synthesis of oleophilic electron-rich phenylhydrazines. Beilstein J Org Chem 2012; 8:275-82. [PMID: 22423295 PMCID: PMC3302090 DOI: 10.3762/bjoc.8.29] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 02/06/2012] [Indexed: 11/23/2022] Open
Abstract
Phenylhydrazines 1 substituted with two or three long-chain alkyl, alkoxy or alkylsulfanyl groups were successfully prepared by acid-induced removal of the Boc group in hydrazides 2. The reaction is carried out with 5 equivalents of TfOH in CF3CH2OH/CH2Cl2 at −40 °C for 1.5 min. Under these conditions, the deprotected hydrazine 1 is fully protonated, which increases its stability in the reaction medium. The hydrazines were isolated in 60–86% yields and purities >90%. The hydrazides 2 were obtained in 43–71% yields from aryl bromides 5, which were lithiated with t-BuLi and subsequently reacted with di-tert-butyl azodicarboxylate (DTBAD).
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Affiliation(s)
- Aleksandra Jankowiak
- Organic Materials Research Group, Department of Chemistry, Vanderbilt University, Nashville, TN 37235
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30
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Jankowiak A, Pociecha D, Monobe H, Szczytko J, Kaszyński P. Thermochromic discotic 6-oxoverdazyls. Chem Commun (Camb) 2012; 48:7064-6. [DOI: 10.1039/c2cc33051b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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