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最近の論文

  1. " Significance of the Connecting Position between Zn(II) Porphyrin and Re(I) Bipyridine Tricarbonyl Complex Units in Dyads for Room-Temperature Phosphorescence and Photocatalytic CO2 Reduction: Unexpected Enhancement by Triethanolamine in Catalytic Activity",Yusuke Kuramochi, * Yuto Suzuki, Somyo Asai, Tomohiro Suzuki, Hiroki Iwama, Motoko S. Asano* and Akiharu Satake*
    Chem. Sci.,14(33) 8743–8765 (2023).[ https://doi.org/10.1039/d3sc02430j]

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  2. " Heteroleptic Cu(I) Bipyridine Complexes as Redox Photosensitizers for Photocatalytic CO2 Reduction ", Hiroyuki Takeda,* Kohei Takahashi, Yui Namiki, Akitaka Ito, Masao Kurosu, Takako Muraoka, and Motoko S. Asano*
    Bull. Chem. Soc. Jpn,96, 519-528 (2023).[ https://doi.org/10.1246/bcsj.20230076]

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  3. "Orthogonal and twisted dimers of redox-active pyrrole-fused pentaazapolycyclic hydrocarbons", Tomoyuki Narita, Kazuki Fujiwara, Hidemitsu Uno, Motoko S. Asano, Tohru Nishinaga, and Masayoshi Takase* J. Porphyrins Phthalocyanine,27, 1357-1363 (2023).　[ https://doi.org/10.1142/S1088424623500931].

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  4. "常磁性金属錯体とその複合系における光励起状態の電子緩和とスピン間相互作用", 浅野素子, 電子スピンサイエンス, 21, 4-11 (2023)

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  5. "Recent Developments of Photoactive Cu(I) and Ag(I) Complexes with Diphosphine and Related Ligands", Hiroyuki Takeda, Atsushi Kobayashi, Kiyoshi Tsuge, Coord. Chem. Rev., 470, 214700 (2022)

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  6. "Star-Shaped ROMP Polymers Coated with Oligothiophenes that Exhibit Unique Emission", Zelin Sun, Ken Kobori, Kotohiro Nomura*, Motoko S. Asano*, ACS Omega, 7, 13270-13279 (2022) [https://doi.org/10.1021/acsomega.2c00739]

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  7. "Heteroleptic Cu(I) Phenanthroline Complexes Bearing Benzoxazole and Benzothiazole Moieties for Visible Light Absorption" Hiroyuki Takeda,* Makoto Shimo, Gai Yasuhara, Ken Kobori, Motoko S. Asano, Yutaka Amao, Chem. Lett., 51, 69-72 (2022） [http://dx.doi.org/10.1021/acs.jpcb.0c09613]

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  8. "Highly Functional Dinuclear CuI-Complex Photosensitizers for Photocatalytic CO2 Reduction" Hiroyuki Takeda*, Yu Monma, and Osamu Ishitani* ACS Catal. 11, 11973-11984 (2021） [https://doi.org/10.1021/acscatal.1c03336]

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  9. "S,C,C- and O,C,C-Bridged Triarylamines and Their Persistent Radical Cations" Shunpei Kataoka, Shuichi Suzuki, Yoshihito Shiota, Kazunari Yoshizawa, Taisuke Matsumoto, Motoko S. Asano, Toshitada Yoshihara, Chitoshi Kitamura, and Shin-ichiro Kato* J. Org. Chem., 86, 12559-12568 (2021） [http://doi.org/10.1021/acs.joc.1c00969]

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  10. "Observation of Intramolecular Interaction in Fluorescent Star-Shaped Polymers: Evidence for Energy Hopping between Branch Chains" Motoko S. Asano,* Takatsugu Morita, Tomohiro Miwata, Kotohiro Nomura,* J. Phys. Chem. B, 124, 11510-11518 (2020） [http://dx.doi.org/10.1021/acs.jpcb.0c09613]

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  11. "Open-Shell Singlet Diradicaloid Difluoreno[4,3-b:3′,4′-d]furan and Its Radical Cation and Dianion" Sakura Mori, Motoko Akita, Shuichi Suzuki, Motoko S. Asano, Michihisa Murata, Tsuyoshi Akiyama, Taisuke Matsumoto, Chitoshi Kitamura, Shin-ichiro Kato,* Chem. Commun., 56, 5881-5884 (2020） [doi.org/10.1039/D0CC01638A]

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  12. "Synthesis, Structures, and Properties of Neutral and Radical Cationic S,C,C-Bridged Triphenylamine" Shin-ichiro Kato,* Takanori Matsuoka, Shuichi Suzuki, Motoko S. Asano, Toshitada Yoshihara, Seiji Tobita, Taisuke Matsumoto, Chitoshi Kitamura Org. Lett., 22, 734-738 (2020） [doi.org/10.1021/acs.orglett.9b04575]

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  13. "Interaction between the End Group and the Main Chain of Conjugated Polymers by Time-resolved EPR and Fluorescence Spectroscopy" Motoko S. Asano,* Sho Hashimoto, Takuya Shinozuka, Yasutaka Fushimi, Kotohiro Nomura,* Mol. Phys., 117(19), 2664-2672 (2019） [DOI:10.1080/00268976.2018.1510140]

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  14. “Visualization of Nonemissive Triplet Species of Zn(II) Porphyrins through Cu(II) Porphyrin Emission via the Reservoir Mechanism in a Porphyrin Macroring”, Yusuke Kuramochi, Sho Hashimoto, Yuki Kawakami, Motoko S. Asano,* Akiharu Satake,* Photochem. Photobiol. Sci., 17, 883-888 (2018） [DOI: 10.1039/c8pp00210j]

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  15. “Terthiophene Functionalized Conjugated Triarm Polymers Containing Poly(fluorene-2,7-Vinylene) Arms Having Different Cores. Synthesis and Their Unique Optical Properties”, Kotohiro Nomura*, Tomohiro Miwata, Takuya Shinozuka, Munetsugu Morita, Yves Geerts, Michiya Fujiki, Motoko S. Asano,* ACS Omega, 3, 5052-5063 （2018） [DOI:10.1021/acsomega.8b00676]

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  16. “Effects of Terthiophene as the End-Groups in Triblock Copolymers Consisting of Poly(fluorene vinylene) and Oligo(phenylene vinylene): Time-Resolved Fluorescence and Its Anisotropy”, Motoko S. Asano,* Yoshifumi Yasuda, Daichi Kagota, Tahmina Haque, and Kotohiro Nomura,* J. Photochem. Photobiol. A, 349, 18-24（2017）[DOI:10.1016/j.jphotochem.2017.08.039]

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  17. “Effects of End-Groups on Photophysical Properties of Poly(9,9di-n-octyl-uorene-2,7-vinylene)s Linked with Metalloporphyrins: Synthesis and Time-Resolved Fluorescence Spectroscopy”, Yasutaka Fushimi, Misaki Koinuma, Yoshifumi Yasuda, Kotohiro Nomura,* and Motoko S. Asano,* Macromolecules 50 (5), 1803-1814 （2017）[DOI:10.1021/acs.macromol.7b00047].

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  18. “Prolonged Lifetime of Near IR Emission due to a Reservoir State in a Phenylene-Linked　Copper(II) Porphyrin Zinc (II) Porphyrin Dimer”, Motoko S. Asano,* Masanori Shibuki, and Takuhiro Otsuka, Chem. Lett., 45, 1114-1116 (2016) [DOI:10.1246/cl.160442i].

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  19. “Time-resolved Fluorescence Spectra in the End-Functionalized Conjugated Triblock Copolymers Consisting of Poly(fluorene vinylene) and Oligo(phenylene vinylene): Proposal of Dynamical Distortion in the Excited State” Motoko S. Asano,* Daichi Kagota, Tahmina Haque, Misaki Koinuma, Akiko Inagaki and Kotohiro Nomura*, Macromolecules 48 (17), 6233-6240（2015）[DOI: 10.1021/acs.macromol.5b01084].

以前の論文抜粋

  1. "Enhanced Intersystem Crossing due to Long-Range Exchange Interaction in Copper(II) Porphyrin-Free Base Porphyrin Dimers : HOMO and Spacer Dependence" Motoko S. Asano,* Kazuma Okamura, Akihoro Jin-mon, Sadaharu Takahashi and Youkoh Kaizu,　 Chem. Phys., 419, 250-260(2013) [10.1016/j.chemphys.2013.03.010]

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  2. "Superexchange Mediated Energy Transfer in Zinc(II) Porphyrin -Free Base Porphyrin Dimers: Comparison of m- and p-Bis(phenylethynyl) phenylene Linked Dimers " Motoko S. Asano,* Ken-ichi Yamashita, Masato Kitabayashi, Kazuki Kusama, Daichi Kagota and Ken-ichi Sugiura, Phys. Chem. Chem. Phys., 13(28), 12712-12715(2011). [10.1039/C1CP20539K].

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  3. "Temperature Dependent Emission of Copper(I) Phenanthroline Complexes with Bulky Substituents: Estimation of an Energy Gap between the Singlet and Triplet MLCT States " Motoko S. Asano,* Kazuhito Tomiduka, Keita Sekizawa, Ken-ichi Yamashita, and Ken-ichi Sugiura, Chem. Lett., 39, No.4, pp.376--378(2010) .

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  4. "Observation of a Photoexcited State of a Paramagnetic Transition Metal Complex by Time-Resolved Electron Paramagnetic Resonance Spectroscopy” Y. Kandraskin, M. S. Asano, A. van der Est, Phys. Chem. Chem. Phys., 8(18), 2129-2132 (2006).

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  5. "Spin-Multiplicity of a Moderately Coupled Triplet-Doublet Spin Pair in a p-Biphenylelne-Linked Porphyrin Dimer ", M. S. Asano,* K. Ishizuka, Y. Kaizu, Mol. Phys., 104(10-11), 1609-1618 (2006).

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  6. "EPR Spectra of Gable-Type Copper(II) Porphyrin Dimers in Fluid Solution: Extraction of Exchange Interaction in Weakly Coupled Doublet Pairs", N. Toyama, M. Asano-Someda,* Y. Kaizu, Mol. Phys., 101(6), 733-742, (2003).

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  7. "Light-Induced Electron Spin Polarization of a Weakly Coupled Triplet-Doublet Spin Pair in a Covalently Linked Porphyrin Dimer", A. van der Est,* M. Asano-Someda,* P. Ragogna, Y. Kaizu J. Phys. Chem. A, 106 (37), 8531-8542 (2002).

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  8. "Enhanced Intersystem Crossing in Gable-Type Copper(II) Porphyrin-Free Base Porphyrin Dimers: Evidence of Through-Bond Exchange Interaction", N. Toyama, M. Asano-Someda,* T. Ichino, Y. Kaizu, J. Phys. Chem. A, 104 (21), 4857-4865 (2000).

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  9. "Intramolecular Energy Transfer in a Covalently Linked Copper(II) Porphyrin - Free Base Porphyrin Dimer: Novel Spin Polarization in the Energy Acceptor", M. Asano-Someda,* A. van der Est,* U. Krüger, D. Stehlik, Y. Kaizu, H. Levanon, J. Phys. Chem. A, 103 (34), 6704-6714 (1999).

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  10. "Highly Efficient Triplet-Triplet Intramolecular Energy Transfer and Enhanced Intersystem Crossing in Rigidly Linked Copper(II) Porphyrin-Free Base Porphyrin Hybrid Dimers", M. Asano-Someda, Y. Kaizu, Inorg. Chem., 38(10), 2303-2322 (1999).

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  11. "Time-Resolved Resonance Raman Spectra of Meso-Substituted Copper Porphyrins in the T1 State: Implication for the Solvent Dependent Red-Shift of Emission Spectra", M. Asano-Someda, S. Sato, K. Aoyagi, T. Kitagawa, J. Phys. Chem., 99 (38), 13800-13807 (1995).

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  12. "Red-Shifted Emission Spectra of Several Meso-Substituted Copper Porphyrins in Fluid Solution", M. Asano-Someda, Y. Kaizu, J. Photochem. Photobiol. A, 87, 23-29 (1995).

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  13. "The Lowest Excited States of Copper Porphyirns", M. Asano, Y. Kaizu, H. Kobayashi, J. Chem. Phys., 89 (11), 6567-6576 (1988).

 

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