1
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Mohapatra D, Patra SA, Pattanayak PD, Sahu G, Sasamori T, Dinda R. Monomeric copper(II) complexes with unsymmetrical salen environment: Synthesis, characterization and study of biological activities. J Inorg Biochem 2024; 253:112497. [PMID: 38290220 DOI: 10.1016/j.jinorgbio.2024.112497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
Three new ONNO-donor tetradentate unsymmetrical salen ligands were synthesized by using o-phenyl diamine with substituted salicylaldehydes followed by a two-step reaction methodology. These three ligands by reaction with Cu(OAc)2.4H2O produced three new monomeric Cu(II) complexes, [CuII(L1-3)] (1-3). Elemental analysis, IR, UV-vis, NMR, and HR-ESI-MS techniques were used to analyze and characterize all the synthesized ligands and their corresponding metal complexes. Molecular structures of 1-3 were confirmed by the single-crystal-XRD analysis. Furthermore, the DNA binding ability of these complexes was checked through UV-vis, fluorescence spectroscopy, and also by circular dichroism studies. All the complexes were found to show an intercalation mode of binding with the Kb value in the range of 104-105 M-1. Finally, 1-3 was tested against two malignant (HeLa and A549) and non-cancerous (NIH-3T3) cell lines to check their in vitro antiproliferative activities. Among all, 1 is the most cytotoxic of the series having IC50 values of 5.7 ± 0.9 and 6.0 ± 0.3 μM against HeLa and A549 cell lines, respectively. This result is also consistent with the DNA binding order. Furthermore, the apoptotic mode of cell death of all the complexes was also evaluated by DAPI, AO/EB, and Annexin V-FITC/PI double staining assays.
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Affiliation(s)
- Deepika Mohapatra
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | | | - Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Takahiro Sasamori
- University of Tsukuba, Institute of Natural Sciences B-506, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India.
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2
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Inoue T, Ota M, Amijima Y, Takahashi H, Hamada S, Nakamura S, Kobayashi Y, Sasamori T, Furuta T. Dual Chalcogen-Bonding Interactions for the Conformational Control of Urea. Chemistry 2023; 29:e202302139. [PMID: 37507838 DOI: 10.1002/chem.202302139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 07/30/2023]
Abstract
Dual chalcogen-bonding interactions is proposed as a novel means for the conformational control of urea derivatives. The formation of a chalcogen-bonding interaction at both sides of the urea carbonyl group was unambiguously confirmed by X-ray diffraction as well as computational studies including non-covalent interaction (NCI) plot index analysis, quantum theory of atoms in molecules (QTAIM) analysis, and natural bond orbital (NBO) analysis via DFT calculations. By virtue of this dual interaction, urea derivatives that bear chalcogen atoms (X=S and Se) adopt a planar structure via the carbonyl oxygen (O) with an X⋅⋅⋅O⋅⋅⋅X arrangement on the same side of the molecule. The rigidity of the conformational lock was evaluated using the molecular arrangement in the crystal and the rotational barrier of benzochalcogenophene ring, which indicated a stronger conformational lock in benzoselenophene than in benzothiophene urea derivatives. Furthermore, the acidity of the urea derivatives increases according to the Lewis-acidic properties of the chalcogen-bonding interactions, whereby benzoselenophene urea is more acidic than benzothiophene urea. Tweezer-shaped urea derivatives were prepared, and their stereostructure proved the viability of the conformational control for defining the location of the substituents on the urea framework.
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Affiliation(s)
- Takumi Inoue
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Moe Ota
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yui Amijima
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Haru Takahashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Seikou Nakamura
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Takahiro Sasamori
- Department of Chemistry Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
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3
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Miwa K, Aoyagi S, Amaya T, Sasamori T, Morisako S, Kurogi T, Yorimitsu H. Multiply exo-Methylated Corannulenes. Chemistry 2023; 29:e202302443. [PMID: 37712387 DOI: 10.1002/chem.202302443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Invited for the cover of this issue are Shinobu Aoyagi (Nagoya City University), Takahiro Sasamori (University of Tsukuba), and Hideki Yorimitsu (Kyoto University). The image depicts multiply exo-methylated corannulenes (flowers) synthesized from corannulene (central large flower) by the reduction with sodium (soil) to form anionic corannulenes and the subsequent methylation with reduction-resistant dimethyl sulfate (butterflies). Read the full text of the article at 10.1002/chem.202301557.
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Affiliation(s)
- Kazuhira Miwa
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Toru Amaya
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Shogo Morisako
- Division of Chemistry, Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Takashi Kurogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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4
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Miwa K, Aoyagi S, Amaya T, Sasamori T, Morisako S, Kurogi T, Yorimitsu H. Multiply exo-Methylated Corannulenes. Chemistry 2023; 29:e202301557. [PMID: 37302982 DOI: 10.1002/chem.202301557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 06/13/2023]
Abstract
The curved π-conjugated surface of bowl-shaped corannulene has been multiply methylated to form exo-di-, -tetra-, and -hexamethylated corannulenes. The multimethylations became possible through in-situ iterative reduction/methylation sequences that involve the reduction of corannulenes using sodium to form the anionic corannulene species, and the subsequent SN 2 reaction of the anionic species with reduction-resistant dimethyl sulfate. X-ray diffraction analyses, NMR, MS, UV-Vis measurements, and DFT calculations have revealed the molecular structures of the multimethylated corannulenes and the sequence of the multimethylation. This work has the potential to contribute to the controlled synthesis and characterizations of multifunctionalized fullerenes.
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Affiliation(s)
- Kazuhira Miwa
- Department of Information and Basic Science Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Toru Amaya
- Department of Information and Basic Science Graduate School of Science, Nagoya City University, Nagoya, 467-8501, Japan
| | - Takahiro Sasamori
- Division of Chemistry Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Shogo Morisako
- Division of Chemistry Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Takashi Kurogi
- Department of Chemistry Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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5
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Abstract
While analogues of allenes with heavier main-group elements (group 14-16) have been extensively studied, 2-heteraallenes are rare chemical species whose properties are mostly unknown. It is also notable that the synthesis and isolation of allene-type molecules are not widespread, despite the extensive study of two-coordinated low-valent chemical species.
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Affiliation(s)
- Koh Sugamata
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
| | - Takahiro Sasamori
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
- Department of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
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6
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Ramachandran MRK, Brehm PC, Schnakenburg G, Sasamori T, Boeré RT, Streubel R. P-Centred redox reactions of a 1,4-dihydro-1,4-phosphasiline. Dalton Trans 2023. [PMID: 37222071 DOI: 10.1039/d3dt00850a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Tricyclic 1,4-dihydro-1,4-phosphasilines 3a,b were synthesized from Si(NR2)2-bridged imidazole-2-thione compounds 2a,b. Based on calculated FMOs of 3b, forecasting a possible P-selective P-N bond cleavage reduction, a redox cycle could be established using solutions of P-centred anionic derivative K[4b]. The cycle started with the oxidation of the latter to give the P-P coupled product 5b which could be chemically reduced by KC8 to yield K[4b], again. All new products have been unambiguously confirmed in solution and solid state.
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Affiliation(s)
- Mridhul R K Ramachandran
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
| | - Philipp C Brehm
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
| | - Takahiro Sasamori
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Institute of Natural Sciences B-506, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - René T Boeré
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, AB T1K3M4, Canada
| | - Rainer Streubel
- Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
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7
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Itoh N, Sugamata K, Morisako S, Aoyagi S, Yorimitsu H, Sasamori T. Synthesis of a Dibenzo-1,6,2,5-dioxadisilocine and Its Unexpected Reductive Coupling with Phenanthrene. CHEM LETT 2023. [DOI: 10.1246/cl.220478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Narumi Itoh
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Koh Sugamata
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Shogo Morisako
- Department of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Shinobu Aoyagi
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Takahiro Sasamori
- Department of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan
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8
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Oyamada Y, Yamasaki S, Tsuzuki M, Kitagawa T, Kondo M, Sasamori T, Nakamura S. Enantioselective allenylation of ketimines derived from isatins using chiral bis(imidazoline)‐palladium catalysts. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202201017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Patra SA, Sahu G, Pattanayak PD, Sasamori T, Dinda R. Mitochondria-Targeted Luminescent Organotin(IV) Complexes: Synthesis, Photophysical Characterization, and Live Cell Imaging. Inorg Chem 2022; 61:16914-16928. [PMID: 36239464 DOI: 10.1021/acs.inorgchem.2c02959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Five fluorescent ONO donor-based organotin(IV) complexes, [SnIV(L1-5)Ph2] (1-5), were synthesized by the one-pot reaction method and fully characterized spectroscopically including the single-crystal X-ray diffraction studies of 2-4. Detailed photophysical characterization of all compounds was performed. All the compounds exhibited high luminescent properties with a quantum yield of 17-53%. Additionally, the results of cellular permeability analysis suggest that they are lipophilic and easily absorbed by cells. Confocal microscopy was used to examine the live cell imaging capability of 1-5, and the results show that the compounds are mostly internalized in mitochondria and exhibit negligible cytotoxicity at imaging concentration. Also, 1-5 exhibited high photostability as compared to the commercial dye and can be used in long-term real-time tracking of cell organelles. Also, it is found that the probes (1-5) are highly tolerable during the changes in mitochondrial morphology. Thus, this kind of low-toxic organotin-based fluorescent probe can assist in imaging of mitochondria within living cells and tracking changes in their morphology.
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Affiliation(s)
- Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | - Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
| | | | - Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela, 769008 Odisha, India
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10
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Murai T, Hamada S, Kobayashi Y, Sasamori T, Furuta T. Syntheses, and Structural and Physical Properties of Axially Chiral Biaryl Dicarboxylic Acids Bearing Chalcogen Atoms. Chem Pharm Bull (Tokyo) 2022; 70:605-615. [DOI: 10.1248/cpb.c22-00217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takuya Murai
- Department of Pharamaceutical Chemistry, Kyoto Pharmaceutical University
| | - Shohei Hamada
- Department of Pharamaceutical Chemistry, Kyoto Pharmaceutical University
| | - Yusuke Kobayashi
- Department of Pharamaceutical Chemistry, Kyoto Pharmaceutical University
| | - Takahiro Sasamori
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
| | - Takumi Furuta
- Department of Pharamaceutical Chemistry, Kyoto Pharmaceutical University
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11
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Nakamura M, Hyakutake R, Morisako S, Sasamori T, Mizuhata Y, Tokitoh N, Nakashima K, Fukumoto H, Agou T. Boron complexes of π-extended nitroxide ligands exhibiting three-state redox processes and near-infrared-II (NIR-II) absorption properties. Dalton Trans 2022; 51:13675-13680. [PMID: 36040417 DOI: 10.1039/d2dt02545k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Persistent radicals have attracted increasing attention owing to their fascinating properties, including multi-step redox and long-wavelength absorption characteristics. In this study, boron complexes with π-extended nitroxide ligands were synthesised via Buchwald-Hartwig amination reactions of the corresponding boron-nitroxide complex and diarylamines. These nitroxide complexes exhibited two-step and reversible one-electron oxidation processes, suggesting stable redox triads involving anionic aminoxide, neutral nitroxide-radical, and cationic oxoammonium ligands. Cationic boron complexes of the nitroxide radical ligands were obtained via chemical oxidation of the aminoxide complexes and structurally characterised. The cationic nitroxide-radical complexes exhibited strong absorptions at approximately 1100 nm, demonstrating their potential as near-infrared (NIR)-II-active functional dyes.
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Affiliation(s)
- Marika Nakamura
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan.
| | - Risa Hyakutake
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan.
| | - Shogo Morisako
- Division of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kouichi Nakashima
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan.
| | - Hiroki Fukumoto
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan.
| | - Tomohiro Agou
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan.
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12
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Sugahara T, Hashizume D, Tokitoh N, Matsui H, Kishi R, Nakano M, Sasamori T. Characterization of resonance structures in aromatic rings of benzene and its heavier-element analogues. Phys Chem Chem Phys 2022; 24:22557-22561. [PMID: 36000346 DOI: 10.1039/d2cp03068c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the experimental visualization of the valence-electron-density distribution in benzene and its kinetically stabilized heavier-element analogues, i.e., 1,2-disilabenzene and 1,2-digermabenzene. The valence-electron-density-distribution (EDD) analysis on the 1,2-disila- and 1,2-digermabenzenes revealed that these contain incompletely delocalized π electrons on their cyclic conjugation systems, making them less aromatic compared to benzene. Based on the results of this EDD analysis in combination with anisotropy of the current-induced density (ACID) calculations, considerable contributions from the characteristic resonance structures of 1,2-disila- and 1,2-digermabenzenes with cleaved EE bonds can be expected.
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Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Matsui
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.,Research Center for Solar Energy Chemistry (RCSEC) and Center for Quantum Information and Quantum Biology (QIQB) Osaka University, Toyonaka, Osaka 560-8531, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
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13
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Murai T, Xing Y, Kurokawa M, Kuribayashi T, Nikaido M, Elboray EE, Hamada S, Kobayashi Y, Sasamori T, Kawabata T, Furuta T. One-Pot Preparation of ( NH)-Phenanthridinones and Amide-Functionalized [7]Helicene-like Molecules from Biaryl Dicarboxylic Acids. J Org Chem 2022; 87:5510-5521. [PMID: 35394787 DOI: 10.1021/acs.joc.1c02769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A one-pot transformation of biaryl dicarboxylic acids to (NH)-phenanthridinone derivatives based on a Curtius rearrangement and subsequent basic hydrolysis was developed. This method is also applicable for the preparation of optically active amide-functionalized [7]helicene-like molecules. Furthermore, aza[5]helicene derivatives with a phosphate moiety were isolated as a product of the Curtius rearrangement step in the case of substrates that bear chalcogen atoms. The stereostructures of these products, revealed by X-ray diffraction analysis, suggested that chalcogen-bonding and pnictogen-bonding interactions might contribute to their stabilization. The configurational stability of the helicene-like molecules and their chiroptical properties were further investigated.
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Affiliation(s)
- Takuya Murai
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yongning Xing
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Mayu Kurokawa
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | | | - Masanori Nikaido
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Elghareeb E Elboray
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan.,Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Takahiro Sasamori
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tenodai 1-1-1, Tsukuba, Ibaraki 307-8571, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
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14
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Oyamada Y, Inaba K, Sasamori T, Nakamura S. Enantioselective reaction of N-cyano imines: decarboxylative Mannich-type reaction with malonic acid half thioesters. Chem Commun (Camb) 2022; 58:2172-2175. [PMID: 35060982 DOI: 10.1039/d1cc07191b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective reaction of imines bearing a cyano group as an activating group with malonic acid half thioesters gave chiral cyanamide derivatives with high enantioselectivity. The density functional theory (DFT) calculation clarified the stereochemical outcome and importance of the N-cyano group for imines.
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Affiliation(s)
- Yusuke Oyamada
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Kazuto Inaba
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Takahiro Sasamori
- Faculty of Pure and Applied Sciences and Tsukuba Research Center for Energy Materials Science (TREMS) University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan. .,Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
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15
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Miwa K, Aoyagi S, Sasamori T, Morisako S, Ueno H, Matsuo Y, Yorimitsu H. Facile Multiple Alkylations of C 60 Fullerene. Molecules 2022; 27:molecules27020450. [PMID: 35056764 PMCID: PMC8779915 DOI: 10.3390/molecules27020450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/30/2021] [Accepted: 01/06/2022] [Indexed: 11/24/2022]
Abstract
The reduction of fullerene (C60) with sodium dispersion in the presence of an excess amount of dipropyl sulfate was found to yield highly propylated fullerene, C60(nC3H7)n (max. n = 24), and C60(nC3H7)20 was predominantly generated as determined by mass spectroscopy.
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Affiliation(s)
- Kazuhira Miwa
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya 467-8501, Aichi, Japan; (K.M.); (S.M.)
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya 467-8501, Aichi, Japan; (K.M.); (S.M.)
- Correspondence: (S.A.); (T.S.); Tel.: +81-52-872-5061 (S.A.); +81-29-853-4412 (T.S.)
| | - Takahiro Sasamori
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya 467-8501, Aichi, Japan; (K.M.); (S.M.)
- Tsukuba Research Center for Energy Materials Sciences (TREMS), Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Ibaraki, Japan
- Correspondence: (S.A.); (T.S.); Tel.: +81-52-872-5061 (S.A.); +81-29-853-4412 (T.S.)
| | - Shogo Morisako
- Department of Information and Basic Science, Graduate School of Science, Nagoya City University, Nagoya 467-8501, Aichi, Japan; (K.M.); (S.M.)
- Tsukuba Research Center for Energy Materials Sciences (TREMS), Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Ibaraki, Japan
| | - Hiroshi Ueno
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Sciences and Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Miyagi, Japan;
| | - Yutaka Matsuo
- Department of Chemical System Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Aichi, Japan;
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan;
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16
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Furuta T, Inoue T, Hamada S, Nakamura R, Sasamori T. Synthesis of Amide-Functionalized Thia[7]helicene-Like Molecule and Its Supramolecular Assembly in the Solid State. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Kanda J, Egami N, Sasamori T, Imayoshi A, Hosoya T, Tsubaki K. Synthesis of Bridged Indigos and Their Thermoisomerization and Photoisomerization Behaviors. J Org Chem 2021; 86:17620-17628. [PMID: 34818023 DOI: 10.1021/acs.joc.1c01726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bridged indigos were synthesized by bridging the two nitrogen atoms in the indigo structure with a carbon chain, and their properties were carefully examined. These bridged indigos have intrinsic planar chirality, and the enantiomers were separated using chiral high-performance liquid chromatography. When the chiral bridged indigos were subjected to thermo- and photoisomerization, the corresponding (Z)-indigo was not observed at all, and racemization was observed. This phenomenon is caused by the low activation energy of inversion due to the 1.5 bond order of the double bond of the indigo skeleton and the large energy difference between the ground states of (E)-indigo and (Z)-indigo.
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Affiliation(s)
- Junya Kanda
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Naoki Egami
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tenodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan
| | - Ayumi Imayoshi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Takashi Hosoya
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
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18
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Affiliation(s)
- Tianqing Zhang
- Graduate School of Science Nagoya City University Nagoya Aichi 467-8501 Japan
| | - Vladimir Ya. Lee
- Division of Chemistry Faculty of Pure and Applied Sciences University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Shogo Morisako
- Division of Chemistry Faculty of Pure and Applied Sciences University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
- Tsukuba Research Center for Energy Materials Sciences (TREMS) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Shinobu Aoyagi
- Graduate School of Science Nagoya City University Nagoya Aichi 467-8501 Japan
| | - Takahiro Sasamori
- Division of Chemistry Faculty of Pure and Applied Sciences University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
- Tsukuba Research Center for Energy Materials Sciences (TREMS) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
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19
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Dewangan S, Barik T, Halder B, Mishra A, Dhiman R, Sasamori T, Chatterjee S. Rhodamine tethered 1,1’-unsymmetrical ferrocene functionalization: Metal sensing, cell imaging and logic gate properties. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Akahori S, Sasamori T, Shinokubo H, Miyake Y. Quadruply BN-Fused Tetrathia[8]circulenes with Flexible Frameworks: Synthesis, Structures and Properties. Chemistry 2021; 27:8178-8184. [PMID: 33822395 DOI: 10.1002/chem.202100454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 12/14/2022]
Abstract
Quadruply BN-fused tetrathia[8]circulenes were synthesized through four-fold electrophilic borylation. The single-crystal X-ray diffraction analysis revealed that the BN-fused tetrathia[8]circulene with peripheral phenyl groups exhibits crystal polymorphism, in which the circulene core adopts both planar and saddle conformations in the solid state. The experimental and theoretical studies revealed that the weaker aromaticity of azaborine compared with benzene renders the flexibility of the BN-fused tetrathia[8]circulenes.
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Affiliation(s)
- Shuhei Akahori
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan)
| | - Takahiro Sasamori
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan)
| | - Yoshihiro Miyake
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan)
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21
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Sasamori T. Chemistry of Digermabenzenes: Discovery of Ge-catalyzed Cyclotrimerization of Arylalkynes. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
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22
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Abstract
Reactions of isolable disilynes and digermynes with alkynes can result in the formation of the corresponding disila- (DSBs) and digermabenzenes (DGBs), wherein two carbon atoms of the benzene ring are replaced by silicon or germanium atoms. Detailed structural and spectroscopic analyses of these DSBs and DGBs have revealed that they exhibit considerable aromaticity, comparable to that of benzene. However, in contrast to the all-carbon system benzene, these DSBs and DGBs are highly reactive toward small molecules such as oxygen, hydrogen, 1,3-dienes, and water. During the investigation of their reactivity, we discovered that a 1,2-DGB works as a catalyst for the cyclotrimerization of arylalkynes, which provides access to the corresponding 1,2,4-triarylbenzenes. In this perspective article, our recent progress in the area of DSB and DGB chemistry is summarized.
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Affiliation(s)
- Takahiro Sasamori
- Division of Chemistry, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
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23
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Akahori S, Sasamori T, Shinokubo H, Miyake Y. Cover Feature: Enthalpically and Entropically Favorable Self‐Assembly: Synthesis of
C
4
h
‐Symmetric Tetraazatetrathia[8]circulenes by Regioselective Introduction of Pyridine Rings (Chem. Eur. J. 18/2021). Chemistry 2021. [DOI: 10.1002/chem.202100130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shuhei Akahori
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 4648603 Japan
| | - Takahiro Sasamori
- Department of Chemistry Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 3058571 Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 4648603 Japan
| | - Yoshihiro Miyake
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 4648603 Japan
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24
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Akahori S, Sasamori T, Shinokubo H, Miyake Y. Enthalpically and Entropically Favorable Self-Assembly: Synthesis of C 4h -Symmetric Tetraazatetrathia[8]circulenes by Regioselective Introduction of Pyridine Rings. Chemistry 2021; 27:5675-5682. [PMID: 33300177 DOI: 10.1002/chem.202005077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Indexed: 11/07/2022]
Abstract
Self-assembly of π-conjugated molecules in solution generally occurs owing to either an enthalpic or an entropic gain; however, designing π-conjugated systems that simultaneously exhibit enthalpically and entropically favorable self-assembly behavior is challenging. Herein, the self-assembly behavior of tetraazatetrathia[8]circulenes is disclosed, which is driven by both enthalpy and entropy. Single-crystal X-ray diffraction analysis demonstrated that molecules of these tetraazatetrathia[8]circulenes form face-to-face stacked dimers with a 1D columnar structure owing to the circularly arranged dipole moments. Importantly, concentration- and temperature-dependent 1 H NMR spectra revealed that the formation of self-assemblies of tetraazatetrathia[8]circulenes in chloroform and methanol is favored by both enthalpic and entropic factors. The unique association behavior is due to the presence of sp2 -hybridized nitrogen atoms, which weakly coordinate to the hydrogen atoms of these solvents and reduce the π-electron density of the circulene cores.
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Affiliation(s)
- Shuhei Akahori
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 4648603, Japan
| | - Takahiro Sasamori
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 3058571, Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 4648603, Japan
| | - Yoshihiro Miyake
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 4648603, Japan
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25
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Miwa K, Aoyagi S, Sasamori T, Ueno H, Okada H, Ohkubo K. Anionic Fluorinated Zn-porphyrin Combined with Cationic Endohedral Li-fullerene for Long-Lived Photoinduced Charge Separation with Low Energy Loss. J Phys Chem B 2021; 125:918-925. [PMID: 33445877 DOI: 10.1021/acs.jpcb.0c10450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here we report an anionic meso-tetrakis(4-carboxymethylthio-2,3,5,6-tetrafluorophenyl) zinc porphyrin (ZnTF4PPTC4-) to form a supramolecular complex with a cationic lithium endohedral [60]fullerene (Li+@C60). The supramolecular ZnTF4PPTC4-/Li+@C60 complex formed by strong electrostatic attraction with a large binding constant generates a long-lived charge-separated (CS) state with low energy loss by photoinduced electron transfer from ZnTF4PPTC4- to Li+@C60. The anionic fluorinated zinc porphyrin with high oxidation potential reduces the energy loss associated with the charge separation and enhances the energy level of the CS state. The energy level of the CS state determined by electrochemical measurements is at 0.94 eV, which is much higher than that of a similar supramolecular complex using an anionic meso-tetrakis(sulfonatophenyl) zinc porphyrin (ZnTPPS4-) at 0.55 eV. Time-resolved transient absorption spectroscopy demonstrates that ZnTF4PPTC4-/Li+@C60 generates a long-lived CS state with a lifetime of 0.29 ms in a binary solvent of acetonitrile and chlorobenzene. The lifetime of the CS state is comparable to that of ZnTPPS4-/Li+@C60 in benzonitrile.
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Affiliation(s)
- Kazuhira Miwa
- Department of Information and Basic Science, Nagoya City University, Nagoya 467-8501, Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science, Nagoya City University, Nagoya 467-8501, Japan
| | - Takahiro Sasamori
- Department of Information and Basic Science, Nagoya City University, Nagoya 467-8501, Japan.,Division of Chemistry, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Sciences (TREMS), University of Tsukuba, Tsukuba 305-8571, Japan
| | - Hiroshi Ueno
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, Sendai 980-8578, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hiroshi Okada
- Fukamatsugumi Co., Ltd., Sendai 981-0931, Japan.,Idea International Co., Ltd., Sendai 981-0922, Japan.,Center for Fundamental and Applied Research of Novel Nanocarbon Derivatives, Center for Key Interdisciplinary Research, Tohoku University, Sendai 980-8578, Japan
| | - Kei Ohkubo
- Institute for Advanced Co-Creation Studies, Open and Transdisciplinary Research Initiatives, Osaka University, Suita 565-0871, Japan
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26
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27
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Furuta T, Xing Y, Nikaido M, Murai T, Hamada S, Kobayashi Y, Sasamori T, Kawabata T. Concise Synthesis of an Amide-Functionalized [7]Helicene-like Molecule via Intramolecular Amidation. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Kawabata T, Hyakutake R, Yoshimura T, Sasamori T, Tokitoh N. Decisive Effects of C-N Axial Chirality of Intermediary Enolates on the Stereochemical Course of β-Lactam Formation from β-Branched α-Amino Acid Derivatives via Memory of Chirality. HETEROCYCLES 2021. [DOI: 10.3987/com-21-s(k)74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Murai T, Lu W, Kuribayashi T, Morisaki K, Ueda Y, Hamada S, Kobayashi Y, Sasamori T, Tokitoh N, Kawabata T, Furuta T. Conformational Control in Dirhodium(II) Paddlewheel Catalysts Supported by Chalcogen-Bonding Interactions for Stereoselective Intramolecular C–H Insertion Reactions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03689] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuya Murai
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Wenjie Lu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | | | - Kazuhiro Morisaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, Mizuho-ku, Nagoya, Aichi 467-8501, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan
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30
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Pan Y, Morisako S, Aoyagi S, Sasamori T. Generation of Bis(ferrocenyl)silylenes from Siliranes. Molecules 2020; 25:molecules25245917. [PMID: 33327589 PMCID: PMC7765056 DOI: 10.3390/molecules25245917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/16/2022] Open
Abstract
Divalent silicon species, the so-called silylenes, represent attractive organosilicon building blocks. Isolable stable silylenes remain scarce, and in most hitherto reported examples, the silicon center is stabilized by electron-donating substituents (e.g., heteroatoms such as nitrogen), which results in electronic perturbation. In order to avoid such electronic perturbation, we have been interested in the chemistry of reactive silylenes with carbon-based substituents such as ferrocenyl groups. Due to the presence of a divalent silicon center and the redox-active transition metal iron, ferrocenylsilylenes can be expected to exhibit interesting redox behavior. Herein, we report the design and synthesis of a bis(ferrocenyl)silirane as a precursor for a bis(ferrocenyl)silylene, which could potentially be used as a building block for redox-active organosilicon compounds. It was found that the isolated bis(ferrocenyl)siliranes could be a bottleable precursor for the bis(ferrocenyl)silylene under mild conditions.
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Affiliation(s)
- Yang Pan
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
| | - Shogo Morisako
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan;
| | - Shinobu Aoyagi
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
| | - Takahiro Sasamori
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan;
- Correspondence: ; Tel.: +81-29-853-4412
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31
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Ieda N, Hotta Y, Yamauchi A, Nishikawa A, Sasamori T, Saitoh D, Kawaguchi M, Kimura K, Nakagawa H. Development of a Red-Light-Controllable Nitric Oxide Releaser to Control Smooth Muscle Relaxation in Vivo. ACS Chem Biol 2020; 15:2958-2965. [PMID: 33166443 DOI: 10.1021/acschembio.0c00601] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We designed and synthesized a novel Si-rhodamine derivative, NORD-1, as a red-light-controllable nitric oxide (NO) releaser, on the basis of photoredox parameter analysis. Red-light-responsive NO release from NORD-1 was confirmed by ESR spin trapping and quantified with an NO electrode and by means of Griess assay. The NO release cross section (ε656 nm·ΦNO) of NORD-1 was calculated to be 3.65 × 102, which is larger than that of a previously reported yellowish-green-light-controllable NO releaser, NO-Rosa5. The photoresponsiveness of NO release from NORD-1 was precise and efficient enough to induce vasodilation ex vivo under Magnus test conditions. Finally, we showed that intracavernous pressure (ICP) could be controlled in rats in vivo with the combination of NORD-1 and a red-light source without increasing systemic blood pressure, which is a serious side effect of usual NO releasers, such as nitroglycerin and isopentyl nitrite. NORD-1 is expected to be a useful chemical tool for NO research, as well as a candidate agent to control the circulatory system.
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Affiliation(s)
- Naoya Ieda
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Yuji Hotta
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Ayaka Yamauchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Atsushi Nishikawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, 1 Yamanohata, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8501, Japan
| | - Daisuke Saitoh
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Mitsuyasu Kawaguchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Kazunori Kimura
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
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32
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Abstract
Several examples of stable low-coordinated species of heavier group 14 elements (Si, Ge, Sb, Pb) such as divalent species and multiple-bond compounds have been reported. With the goal in mind to create unprecedented low-coordinated species of heavier group 14 elements that exhibit considerably increased redox stability, ferrocenyl (Fc)-substituted low-coordinated species of heavier group 14 elements were designed. In this short account article, recent progress on the synthesis of Fc-based low-coordinated species of heavier group 14 elements is summarized.
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Affiliation(s)
- Takahiro Sasamori
- Graduate School of Science, Nagoya City University, Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8501, Japan.
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33
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Sugahara T, Espinosa Ferao A, Rey Planells A, Guo JD, Aoyama S, Igawa K, Tomooka K, Sasamori T, Hashizume D, Nagase S, Tokitoh N. 1,2-Insertion reactions of alkynes into Ge-C bonds of arylbromogermylene. Dalton Trans 2020; 49:7189-7196. [PMID: 32415829 DOI: 10.1039/d0dt01223h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,2-Insertion reactions of alkynes into the Ge-C bonds in dibromodigermenes afford stable crystalline bromovinylgermylenes. In contrast to previously reported Lewis-base-supported vinylgermylenes, the bromovinylgermylene obtained from reaction of the bromogermylene with 3-hexyne via such an 1,2-insertion is a donor-free monomer. A feasible reaction mechanism, proposed on the basis of the observed experimental results in combination with theoretical calculations, suggests that the [1+2]-cycloadduct and the insertion product are the kinetic and thermodynamic product, respectively.
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Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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34
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Takeuchi H, Fujimori Y, Ueda Y, Shibayama H, Nagaishi M, Yoshimura T, Sasamori T, Tokitoh N, Furuta T, Kawabata T. Solvent-Dependent Mechanism and Stereochemistry of Mitsunobu Glycosylation with Unprotected Pyranoses. Org Lett 2020; 22:4754-4759. [DOI: 10.1021/acs.orglett.0c01549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hironori Takeuchi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yusuke Fujimori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Hiromitsu Shibayama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masaru Nagaishi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tomoyuki Yoshimura
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takahiro Sasamori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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35
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Fukazawa M, Takahashi F, Nogi K, Sasamori T, Yorimitsu H. Reductive Difunctionalization of Aryl Alkenes with Sodium Metal and Reduction-Resistant Alkoxy-Substituted Electrophiles. Org Lett 2020; 22:2303-2307. [DOI: 10.1021/acs.orglett.0c00490] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mizuki Fukazawa
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Fumiya Takahashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Keisuke Nogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8501, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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36
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Kawabata T, Yang P, Yoshimura T, Sasamori T, Tokitoh N, Morisaki K. Protonation-Assisted Conjugate Addition of Axially Chiral Enolates: Asymmetric Synthesis of β-Lactams with Contiguous Tetrasubstituted Stereocenters from α-Amino Acids via Memory of Chirality. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)56] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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37
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Banerjee A, Mohanty M, Lima S, Samanta R, Garribba E, Sasamori T, Dinda R. Synthesis, structure and characterization of new dithiocarbazate-based mixed ligand oxidovanadium(iv) complexes: DNA/HSA interaction, cytotoxic activity and DFT studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj01246g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structure and characterization of mixed ligand oxidovanadium(iv) complexes [VIVOL1–2(LN–N)] (1–3) are reported. With a view to evaluating their biological activity, their DNA/HSA interaction and cytotoxicity activity have been explored.
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Affiliation(s)
- Atanu Banerjee
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Monalisa Mohanty
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Sudhir Lima
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Rajib Samanta
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia
- Università di Sassari
- I-07100 Sassari
- Italy
| | - Takahiro Sasamori
- Graduate School of Natural Sciences
- Nagoya City University Yamanohata 1
- Nagoya
- Japan
| | - Rupam Dinda
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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38
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Ozaki M, Nakaike Y, Shimazaki A, Jung M, Maruyama N, Yakumaru S, Rafieh AI, Ekanayake P, Saito T, Shimakawa Y, Sasamori T, Murata Y, Murdey R, Wakamiya A. How to Make Dense and Flat Perovskite Layers for >20% Efficient Solar Cells: Oriented, Crystalline Perovskite Intermediates and Their Thermal Conversion. BCSJ 2019. [DOI: 10.1246/bcsj.20190241] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masashi Ozaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yumi Nakaike
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ai Shimazaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Mina Jung
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Naoki Maruyama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shinya Yakumaru
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Alwani Imanah Rafieh
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410, Brunei
| | - Piyasiri Ekanayake
- Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410, Brunei
| | - Takashi Saito
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuichi Shimakawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, Nagoya, Aichi 467-8501, Japan
| | - Yasujiro Murata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Richard Murdey
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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39
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Takahashi F, Nogi K, Sasamori T, Yorimitsu H. Diborative Reduction of Alkynes to 1,2-Diboryl-1,2-Dimetalloalkanes: Its Application for the Synthesis of Diverse 1,2-Bis(boronate)s. Org Lett 2019; 21:4739-4744. [DOI: 10.1021/acs.orglett.9b01622] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fumiya Takahashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Keisuke Nogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8501, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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40
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Ozaki M, Shimazaki A, Jung M, Nakaike Y, Maruyama N, Yakumaru S, Rafieh AI, Sasamori T, Tokitoh N, Ekanayake P, Murata Y, Murdey R, Wakamiya A. A Purified, Solvent‐Intercalated Precursor Complex for Wide‐Process‐Window Fabrication of Efficient Perovskite Solar Cells and Modules. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masashi Ozaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Ai Shimazaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Mina Jung
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Yumi Nakaike
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Naoki Maruyama
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Shinya Yakumaru
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Alwani Imanah Rafieh
- Centre for Advanced Material and Energy Sciences Universiti Brunei Darussalam Jalan Tungku Link BE1410 Brunei
| | - Takahiro Sasamori
- Graduate School of Natural Sciences Nagoya City University Nagoya Aichi 467-8501 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Piyasiri Ekanayake
- Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link BE1410 Brunei
| | - Yasujiro Murata
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Richard Murdey
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
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41
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Ozaki M, Shimazaki A, Jung M, Nakaike Y, Maruyama N, Yakumaru S, Rafieh AI, Sasamori T, Tokitoh N, Ekanayake P, Murata Y, Murdey R, Wakamiya A. A Purified, Solvent‐Intercalated Precursor Complex for Wide‐Process‐Window Fabrication of Efficient Perovskite Solar Cells and Modules. Angew Chem Int Ed Engl 2019; 58:9389-9393. [DOI: 10.1002/anie.201902235] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Masashi Ozaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Ai Shimazaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Mina Jung
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Yumi Nakaike
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Naoki Maruyama
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Shinya Yakumaru
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Alwani Imanah Rafieh
- Centre for Advanced Material and Energy Sciences Universiti Brunei Darussalam Jalan Tungku Link BE1410 Brunei
| | - Takahiro Sasamori
- Graduate School of Natural Sciences Nagoya City University Nagoya Aichi 467-8501 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Piyasiri Ekanayake
- Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link BE1410 Brunei
| | - Yasujiro Murata
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Richard Murdey
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
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42
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Ieda N, Oka Y, Yoshihara T, Tobita S, Sasamori T, Kawaguchi M, Nakagawa H. Structure-efficiency relationship of photoinduced electron transfer-triggered nitric oxide releasers. Sci Rep 2019; 9:1430. [PMID: 30723285 PMCID: PMC6363743 DOI: 10.1038/s41598-018-38252-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 12/21/2018] [Indexed: 01/08/2023] Open
Abstract
Spatiotemporally controllable nitric oxide (NO) releasers are required for biological studies and as candidate therapeutic agents. Here, we investigate the structure-efficiency relationship of a series of photoinduced electron transfer-triggered NO releasers based on our reported yellowish-green light-controllable NO releaser, NO-Rosa. The distance between the NO-releasing N-nitrosoaminophenol moiety and the rosamine antenna moiety was critical for efficient NO release. Notably, substitution at the phenolic hydroxyl group blocked NO release. We synthesized NO-Rosa-Gal bearing D-galactose (Gal) at this location, and showed that hydrolysis by β-galactosidase restored the photoresponse. This represents proof-of-concept of a strategy for highly specific control of NO release by using a double-lock system involving both enzymatic reactivation and photo-control.
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Affiliation(s)
- Naoya Ieda
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi, 467-8603, Japan
| | - Yumina Oka
- Faculty of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi, 467-8603, Japan
| | - Toshitada Yoshihara
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Seiji Tobita
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, 1, Yamanohata, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8501, Japan
| | - Mitsuyasu Kawaguchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi, 467-8603, Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya, Aichi, 467-8603, Japan.
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43
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Ghosh A, Barik T, Dewangan S, Majhi PK, Sasamori T, Mobin SM, Giri S, Chatterjee S. Selective functionalization of ferrocenyl compounds using a novel solvent free synthetic method for the preparation of bioactive unsymmetrical ferrocenyl derivatives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Avishek Ghosh
- Department of ChemistryNational Institute of Technology Rourkela Rourkela 769008 India
| | - Tulasi Barik
- Department of ChemistryNational Institute of Technology Rourkela Rourkela 769008 India
| | - Smriti Dewangan
- Department of ChemistryNational Institute of Technology Rourkela Rourkela 769008 India
| | - Paresh Kumar Majhi
- Graduate School of Natural SciencesNagoya City University Nagoya Aichi 467‐8501 Japan
| | - Takahiro Sasamori
- Graduate School of Natural SciencesNagoya City University Nagoya Aichi 467‐8501 Japan
| | - Shaikh M. Mobin
- Schools of Basic ScienceIndian Institute of Technology Indore MP 452017 India
| | - Santanab Giri
- Theoretical Chemistry Laboratory, Department of ChemistryNational Institute of Technology Rourkela Rourkela 769008 India
| | - Saurav Chatterjee
- Department of ChemistryNational Institute of Technology Rourkela Rourkela 769008 India
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44
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Sugahara T, Guo JD, Hashizume D, Sasamori T, Tokitoh N. Reversible Isomerizations between 1,4-Digermabenzenes and 1,4-Digerma-Dewar-benzenes: Air-Stable Activators for Small Molecules. J Am Chem Soc 2019; 141:2263-2267. [DOI: 10.1021/jacs.9b00129] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Jing-Dong Guo
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
- Integrated Research Consortium on Chemical Sciences, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences, Nagoya City University, Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8501, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
- Integrated Research Consortium on Chemical Sciences, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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45
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Hayashi S, Uegaito M, Nishide T, Tanaka E, Nakanishi W, Sasamori T, Tokitoh N, Minoura M. Nature of the E⋯E′ interactions (E, E′ = O, S, Se, and Te) at naphthalene 1,8-positions with fine details of the structures: experimental and theoretical investigations. NEW J CHEM 2019. [DOI: 10.1039/c9nj02198a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The nature of E⋯E′ in 1-RE–8-R′E′C10H6 (E/E′ = O, S, Se and Te) is clarified with the QTAIM approach and NBO analysis, after structural determinations.
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Affiliation(s)
- Satoko Hayashi
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Manabu Uegaito
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Taro Nishide
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Eiichiro Tanaka
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Waro Nakanishi
- Faculty of Systems Engineering
- Wakayama University
- Wakayama 640-8510
- Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences
- Nagoya City University
- Nagoya
- Japan
| | | | - Mao Minoura
- Department of Chemistry
- College of Science
- Rikkyo University
- Tokyo
- Japan
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46
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Sugahara T, Sasamori T, Tokitoh N. The formation of a 1,4-disilabenzene and its isomerization into a disilabenzvalene derivative. Dalton Trans 2019; 48:9053-9056. [DOI: 10.1039/c9dt01322a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A stable 1,4-disilabenzene was generated from the reaction of a stable disilyne with 3-hexyne.
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Affiliation(s)
| | - Takahiro Sasamori
- Graduate School of Natural Sciences
- Nagoya City University
- Nagoya
- Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research
- Kyoto University
- Kyoto 611-0011
- Japan
- Integrated Research Consortium on Chemical Sciences
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47
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Murai T, Xing Y, Kuribayashi T, Lu W, Guo JD, Yella R, Hamada S, Sasamori T, Tokitoh N, Kawabata T, Furuta T. Synthesis and Structural Properties of Axially Chiral Binaphthothiophene Dicarboxylic Acid. Chem Pharm Bull (Tokyo) 2018; 66:1203-1206. [PMID: 30504635 DOI: 10.1248/cpb.c18-00668] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Axially chiral binaphthothiophene dicarboxylic acid was prepared as a novel functionalized chiral dicarboxylic acid. The crystal structures of both the racemic form and its salt with chiral diamine revealed the intramolecular S···O interactions (chalcogen bonds) between the sulfur in the naphthothiophene rings and the oxygen of the carboxy groups. The negative-positive and the positive-negative Cotton effects from longer to shorter wavelengths were observed for (R)- and (S)-enantiomers, respectively, in the circular dichroism (CD) spectra.
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Affiliation(s)
- Takuya Murai
- Institute for Chemical Research, Kyoto University
| | | | | | - Wenjie Lu
- Institute for Chemical Research, Kyoto University
| | | | - Ramesh Yella
- Institute for Chemical Research, Kyoto University
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University
| | | | | | | | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University
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48
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Guo JD, Sasamori T. Activation of Small Molecules by Compounds that Contain Triple Bonds Between Heavier Group-14 Elements. Chem Asian J 2018; 13:3800-3817. [DOI: 10.1002/asia.201801329] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/13/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Jing-Dong Guo
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
- Integrated Research Consortium on Chemical Science; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences; Nagoya City University, Yamanohata 1, Mizuho-cho; Mizuho-ku Nagoya Aichi 467-8501 Japan
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49
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Abstract
A stable crystalline 2,5-digermaselenophene was synthesized. In contrast to hitherto reported selenophenes, this digermaselenophene exhibits a trans-pyramidalized structure, which is due to its electronic properties. The practical utility of this 2,5-digermaselenophene is reflected in its ability to activate dihydrogen and acetylene at room temperature in the absence of a transition-metal complex, and this behavior can be rationalized on the basis of its physicochemical properties, which are characterized by considerable electron-donating and -accepting abilities.
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Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research , Kyoto University , Gokasho, Uji, Kyoto 611-0011 , Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences , Nagoya City University , Yamanohata 1, Mizuho-cho, Mizuho-ku , Nagoya , Aichi 467-8501 , Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research , Kyoto University , Gokasho, Uji, Kyoto 611-0011 , Japan.,Integrated Research Consortium on Chemical Sciences , Kyoto University , Gokasho, Uji, Kyoto 611-0011 , Japan
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50
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Majhi PK, Sasamori T. Frontispiece: Tetrylones: An Intriguing Class of Monoatomic Zero-valent Group 14 Compounds. Chemistry 2018. [DOI: 10.1002/chem.201883861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paresh Kumar Majhi
- Graduate School of Natural Sciences; Nagoya City University; Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya Aichi 467-8501 Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences; Nagoya City University; Yamanohata 1, Mizuho-cho, Mizuho-ku, Nagoya Aichi 467-8501 Japan
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