Clarification of Mechanisms on DNA Damage by Electron-Transfer Reduction and Radical Species

• Project/Area Number: 19750034
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Organic chemistry
• Research Institution: Osaka University
• Principal Investigator: OHKUBO Kei Osaka University, 大学院工学研究科, 特任研究員 (00379140)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,720,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥420,000); Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2007: ¥1,900,000 (Direct Cost: ¥1,900,000)
• Keywords: 有機物理化学 / 電子移動化学 / 活性酸素種 / DNA損傷 / 神経伝達物質 / 金属イオン / ヒドロキシルラジカル / ニコチンアミドアデニンジヌクレオチド / 緑茶カテキン / 水素引童抜き反応 / ビタミンB12 / ラジカル / 光反応 / コバルト / 錯体 / DNA / 核酸塩基 / 損傷

Research Abstract

DNAの損傷は突然変異を引き起こし、細胞の死やがん化の原因となる。そのためこのDNA損傷の化学反応を制御する機構の解明は、次世代の医療の新手法開発にもつながる極めて重要な課題である。本研究では、様々なラジカル種(アルキルラジカル・活性酸素種)とDNAおよび核酸塩基との反応について、中間体の検出や各種速度論的解析の結果をもとに損傷機構の解明を行った。

Research Products

• [Journal Article] Aliphatic C-H Bond Activation Initiated by a (μ-η^2:η2-Peroxo)dicopper(II) Complex in Comparison with Cumylperoxyl Radical (2009)
  • Author(s): Matsumoto, T., Ohkubo, K., Honda, K., Yazawa, A., Furutachi, H., Fujinami, S.,; Fukuzumi, S., Suzuki, M.
  • Journal Title: J. Am. Chem. Soc. 131(in press)
• [Journal Article] Tuning Charge Transfer in Novel Reaction Center Mimics Based on Th-Functionalized Fullerenes (2009)
  • Author(s): Spanig F., Kovacs, C., Hauke, F., Hartnagel, U., Ohkubo, K., Fukuzumi, S., Guldi, D. M., Hirsch, A.
  • Journal Title: J. Am. Chem. Soc. 131(in press)
• [Journal Article] Photoinduced Electron-Transfer Reduction of a Hydrochloride Salt of Dodecaphenylporphyrin with Conformational Distortion (2009)
  • Author(s): Nakanishi, T., Kojima, T., Ohkubo, K., Fukuzumi, S.
  • Journal Title: J. Am. Chem. Soc. 131 Pages: 577-584
• [Journal Article] Photoinduced Electron-Transfer Reduction of a Hydrochloride Salt of Dodecaphenylpor (2009)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 131 Pages: 577-584
  • Peer Reviewed
• [Journal Article] Rational Design and Functions of Electron Donor-Acceptor Dyads with Much Longer Charge-Separated Lifetimes than Natural Photosynthetic Reaction Centers (2009)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Bulletin of the Chemical Society of Japan 82(印刷中)
  • NAID: 10025116359
  • Peer Reviewed
• [Journal Article] Photoconductivity of Porphyrin Nanochannels Composed of Diprotonated Porphyrin Dications with Saddle Distortion and Electron Donors (2009)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemistry Materials (印刷中)
  • Peer Reviewed
• [Journal Article] Catalytic Activity of Biscobalt Porphyrin-Corrole Dyads Towards the Reduction of Dioxygen (2009)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Inorganic Chemistry 48(印刷中)
  • Peer Reviewed
• [Journal Article] Metal Quinolinolate-Fullerene(s) Donor-Acceptor Complexes: Evidence for Organic LED Molecules Acting as Electron Donors in Photoinduced Electron-Transfer Reactions (2008)
  • Author(s): D'Souza, F., Maligaspe, E., Zandler, M. E., Subbaiyan, N. K., Ohkubo, K., Fukuzumi, S.
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 16959-16967
• [Journal Article] "Umpolung" Photoinduced Charge Separation in an Anion-bound Supramolecular Complex (2008)
  • Author(s): Sessler, J. L., Karnas, E., Kim, S. K., Ou, Z., Zhang, M., Kadish, K. M., Ohkubo, K., Fukuzumi, S.
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 15256-15257
• [Journal Article] Proton Shift upon One-Electron Reduction in Ruthenium-Coordinated Pterins (2008)
  • Author(s): Miyazaki, S., Ohkubo, K., Kojima, T., Fukuzumi, S.
  • Journal Title: Angew. Chem. Int. Ed. 47 Pages: 9669-9672
• [Journal Article] (Pentamethylcyclopentadienyl)ruthenium π-Complexes of Metalloporphyrins: Platforms with Novel Photo- and Electrochemical Properties (2008)
  • Author(s): Cuesta, L., Karnas, E., Kynch, V. M., Sessler, J. L., Kajonkijya, W., Zhu, W., Zhang, M., Ou, Z., Kadish, K. M., Ohkubo, K., Fukuzumi, S.
  • Journal Title: Chem. Eur. J. 14 Pages: 10206-10210
• [Journal Article] Highly Selective Synthesis of the Ring-B Reduced Chlorins by Ferric Chloride Mediated Oxidation of Bacteriochlorins: Effects of the Fused Imide vs Isocyclic Ring in Photophysical and Electrochemical Properties (2008)
  • Author(s): Liu, C., Dobhal, M. P., Ethirajan, M., Missert, J. R., Pandey, R. K., Balasubramanian, S., Sukumaran, D. K., Zhang, M., Kadish, K. M., Ohkubo, K., Fukuzumi, S.
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 14311-14323
• [Journal Article] A Discrete Supramolecular Conglomerate Composed of Two Saddle-Distorted Zinc(II)-Phthalocyanine Complexes and a Doubly Protonated Porphyrin with Saddle-Distortion Undergoing Efficient Photoinduced Electron Transfer (2008)
  • Author(s): Kojima, T., Honda, T., Ohkubo, K., Shiro, M., Kusukawa, T., Fukuda, T., Kobayashi, N., Fukuzumi, S.
  • Journal Title: Angew. Chem., Int. Ed. 47 Pages: 6712-6716
• [Journal Article] Androgynous Porphyrins. Silver(II) Quinoxalinoporphyrins Act as Both Good Electron Donors and Acceptors (2008)
  • Author(s): Fukuzumi, S., Ohkubo, K., Zhu, W., Sintic, M., Khoury, T., Sintic, P. J., E, W., Ou, Z., Crossley, M. J., Kadish, K. M.
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 9451-9458
• [Journal Article] Face-to-Face Held Pacman Type Porphyrin-Fullerene Dyads : Design, Synthesis, Charge Transfer Interactions and Photophysical Studies (2008)
  • Author(s): D'Souza, F., Maligaspe, E., Karr, P. A., Schumacher, A. L., Ojaimi, M. E., Gros, C. P., Barbe, J.-M., Ohkubo, K., Fukuzumi, S.
  • Journal Title: hem. Eur. J. 14 Pages: 674-681
• [Journal Article] Constracting Photodynamics between Dithiapyrene-C60 and Pyrene-C60 Dyads (2008)
  • Author(s): Guldi, D. M., Spaning, F., Kreher, D., Perepichka, I. F., Bryce, M. R., Ohkubo, K., Fukuzumi, S.
  • Journal Title: Chem. Eur. J. 14 Pages: 250-258
• [Journal Article] Spectroscopic Characterization of Photolytically Generated Radical Ion Pairs in Single-Wall Carbon Nanotubes Bearing Surface-Immobilized Tetrathiafulvalens (2008)
  • Author(s): Herranz, M. A., Ehli, C., Campidelli, S., Gutierrez, M., Hug, G. L., Ohkubo, K., Fukuzumi, S., Prato, M., Matin, N., Guldi, D. M.
  • Journal Title: J. Am. Chem. Soc. 130 Pages: 66-73
• [Journal Article] Spectroscopic Characterization of Photolytically Generated Radical Ion Pairs in Single-Wall Carbon Nanotubes Bearing Surface-Immobilized Tetrathiafulvalens (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 66-73
  • Peer Reviewed
• [Journal Article] Enhanced Radical-scavenging Activity of Naturally-oriented Artepillin C Derivatives (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemical Cmmunications 36 Pages: 626-628
  • Peer Reviewed
• [Journal Article] Formation of Hydrogen Peroxide from Coal Tar as Hydrogen Sources using 9-Mesityl-10-methylacridinium Ion as an Effective Photocatalyst (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Applied Catalysis Environment B 77 Pages: 317-324
  • Peer Reviewed
• [Journal Article] Constracting Photodynamics between Dithiapyrene-C_<60> and Pyrene-C_<60> Dyads (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemistry -A European Journal 14 Pages: 250-258
  • Peer Reviewed
• [Journal Article] Face-to-Face Held Pacman Type Porphyrin-Fullerene Dyads : Design, Synthesis, ChargeTransfer Interactions and Photonhvsical Studies (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemistry -A European Journal 14 Pages: 674-681
  • Peer Reviewed
• [Journal Article] Metal Bacteriochlorins Which Act as Dual Singlet Oxygen and Superoxide Generators (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry B 112 Pages: 2738-3746
  • Peer Reviewed
• [Journal Article] DNA Cleavage Induced by Photoirradiation of Coenzyme B12 and Organocobaloximes without Dioxygen (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of Photochemistry and Photobiology A 197 Pages: 94-100
  • Peer Reviewed
• [Journal Article] Intermolecular vs Intramolecular Photoinduced Electron Transfer from Nucleotides in DNA to Acridinium Ion Derivatives in Relation with DNA Cleavage (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of Photochemistry and Photobiology A 197 Pages: 206-212
  • Peer Reviewed
• [Journal Article] Proton-Coupled Electron Transfer in Ruthenium(II)-Pterin Complexes : Formation of Ruthenium-Coordinated Pterin Radicals_and Their Electronic Structures (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Inorganic Chemistry 47 Pages: 333-343
  • Peer Reviewed
• [Journal Article] Does Bimolecular Charge Recombination in Highly Exergonic Electron Transfer Affordthe Triplet Exeited State or the Ground State of a Photosensitizer? (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry A 112 Pages: 635-642
  • Peer Reviewed
• [Journal Article] Control of the Orbital Delocalization and Implications for MolecularRectification in the Radical Anions of Porphyrins with Coplanar 90。 and 180。 b, b'-Fused Extens (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry A 112 Pages: 556-570
  • Peer Reviewed
• [Journal Article] Electron-Transfer and Acid-Base Properties of a Two-Electron Oxidized Form of Ouaterpvrrole_that Acts as Both an Electron Donor and an Acceptor (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry A 112 Pages: 1633-1642
  • Peer Reviewed
• [Journal Article] Synthesis and Characterization of Novel Ferrocene-Containing Pyridylamine Ligands and Their Ruthenium(II) Complexes : Electronic Communication through Hydrogen-bonded Amide Linkage (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Inorganic Chemistry 47 Pages: 635-642
  • Peer Reviewed
• [Journal Article] Clarification of the Oxidation State of Cobalt Corroles in Heterogeneous and Homogeneous caialvtic Reduction of Dioxvgen (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Inorganic Chemistry 47 Pages: 6726-6737
  • Peer Reviewed
• [Journal Article] Androgynous Porphyrins. Silver(II) Quinoxalinoporphyrins Act as Both Good Electron Donors and Acceotore (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 9451-9458
  • Peer Reviewed
• [Journal Article] Exciplex Mediated Photoinduced Electron Transfer Reactions of Phthalocyanine-Fullerene_Dyads (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry A 112 Pages: 6884-6892
  • Peer Reviewed
• [Journal Article] Why had Long-lived Electron-transfer States of Donor-substituted 10-Methylacridinium Ions been Overlooked? Formation of the Dimer Radical Cations Detected in the Near-IR Region (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Physical Chemistry Chemical Physics 10 Pages: 6712-6716
  • Peer Reviewed
• [Journal Article] A Discrete Supramolecular Conglomerate Composed of Two Saddle-Distorted Zinc(II)-Phthalocyanine Complexes and a Doubly Protonated Porphyrin with Saddle-Distortion I Indergoing Efficient Photoinduced Flectron Transfer (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Angewandte Chemie International Edition 47 Pages: 6712-6716
  • Peer Reviewed
• [Journal Article] Highly Selective Synthesis of the Ring-B Reduced Chlorins by Ferric Chloride Mediated Oxidation of Bacteriochlorins : Effects of the Fused Imide vs Isocyclic Ring in Photophysical and Flectrochemical properties (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 14311-14323
  • Peer Reviewed
• [Journal Article] Corrole-Fullerene Dyads : Formation of Long-Lived Charge-Separated States in Non-polar solvents (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 14263-14272
  • Peer Reviewed
• [Journal Article] Control of Photoinduced Electron Transfer in Zinc Phthalocyanine-Perylenedihnide Dvad and Triad by Magnesium Ion (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry A 112 Pages: 10744-10752
  • Peer Reviewed
• [Journal Article] (Pentamethylcyclopentadienyl)ruthenium π-Complexes of Metalloporphyrins : Platforms with Novel Photo- and Electrochemical Properties (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemistry -A European Journal 14 Pages: 10206-10210
  • Peer Reviewed
• [Journal Article] Adiabatic Photoinduced Electron Transfer and Back Electron Transfer in a Series of Axially-Substituted silicon phthalocyanine Triads (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: The Journal of Physical Chemistry C 112 Pages: 17694-17701
  • Peer Reviewed
• [Journal Article] Proton Shift upon One-Electron Reduction in Ruthenium-Coordinated Pterins (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Angewandte Chemie International Edition 47 Pages: 9669-9672
  • Peer Reviewed
• [Journal Article] Formation of Dodecaphenylporphodimethene via Facile Protonation of Saddle-Distorted Dodecaphenylporphvrin (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Chemical Communications Pages: 6513-6515
  • Peer Reviewed
• [Journal Article] "Umpolung" Photoinduced Charge Separation in an Anion-bound Supramolecular Complex (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 15256-15257
  • Peer Reviewed
• [Journal Article] Metal Quinolinolate-Fullerene(s) Donor-Acceptor Complexes : Evidence for Organic LED Molecules Acting as Electron Donors in Photoinduced Electron-Transfer Reactions (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 16959-16967
  • Peer Reviewed
• [Journal Article] Long-Lived Charge-Separated States of Simple Electron Donor-Acceptor Dyads using Porphyrins and Phthaiocyanines (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Journal of Porphyrins and Phthalocyanines 12 Pages: 994-1004
  • Peer Reviewed
• [Journal Article] Charge Separation in Metallomacrocycle Complexes Linked with Electron Acceptors by Axial Coordination (2008)
  • Author(s): Kei Ohkubo, et.al.
  • Journal Title: Dalton Transactions (印刷中)
  • Peer Reviewed
• [Journal Article] Enhanced Radical-scavenging Activity of Naturally-oriented Artepillin C Derivatives (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemical Cmmunications 36 Pages: 626-628
  • Peer Reviewed
• [Journal Article] Formation of Hydrogen Peroxide from Coal Tar as Hydrogen Sources using9-MeSitvl-l0-methv1acridinium Ton as an Effective Photncatalvst (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Applied Catalysis Environment B 77 Pages: 317-324
  • Peer Reviewed
• [Journal Article] Constracting Photodynamics between Dithiapyrene-C60 and Pyrene-C60 Dyads (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: ChemistryーA European Journal 14 Pages: 250-258
  • Peer Reviewed
• [Journal Article] Face-to-Face Held Pacman Type Porphyrin-Fullerene Dyads: Design, Synthesis. Charge Trnrmfpr Interactions and Photophysical Studies (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemisty -A European Jowmal 14 Pages: 674-681
  • Peer Reviewed
• [Journal Article] Metal Bacteriochlorins Which Act as Dual Singlet Oxygen and Superoxide Generators (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: The Journal of Physical Chemistry 112In press
  • Peer Reviewed
• [Journal Article] DNA Cleavage Induced by Photoirradiation of Coenzyme B12 and Organocobaloximeswithout Dioxveen (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Journal of Photochemistry and Photobiology A In Press
  • Peer Reviewed
• [Journal Article] Intermolecular vs Intramolecular Photo induced Electron Transfer from Nucleotides in DNA to A crifUniiim Ion Derivatives in Relation with DNA Cleavage (2008)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Journal of Photochemistry and Photobiology A In Press
  • Peer Reviewed
• [Journal Article] Design and Synthesis of Polymetallic Complexes Based on meso-Calix[4]pyrrole : Platform for Multielectron Chemistry (2007)
  • Author(s): Custa, L., Gross, D., Lynch, V. M., Ou, Z., Kajokiiya, W., Ohkubo, K., Fukuzumi, S., Kadish, K. M., J. L. Sessler
  • Journal Title: J. Am. Chem. Soc. 129 Pages: 11696-11697
• [Journal Article] Selective Inclusion of Electron-Donating Molecules into Porphyrin Nanochannels Derived from Self-Assembly of Saddle-Distorted Dicationic Porphyrins and Photoinduced Electron Transfer from the Guest Molecules to the Porphyrin Dications (2007)
  • Author(s): Kojima, T., Nakanishi, T., Harada, R., Ohkubo, K., Yamauchi, S., Fukuzumi, S.
  • Journal Title: Chem. Eur. J. 36 Pages: 8714-8725
• [Journal Article] Synthesis and Characterization of Mononuclear Ruthenium(III)-Pyridylamine Complexes and Mechanistic Insights into Their Catalytic Alkene Functionalization with m-Chloroperbenzoic Acid (2007)
  • Author(s): Kojima, T., Hayashi, K., Iizuka, S., Tani, F., Naruta, Y., Kawano, M., Ohashi, Y., Hirai, Y., Ohkubo, K., Fukuzumi, S.
  • Journal Title: Chem. Eur. J. 13 Pages: 8212-8222
• [Journal Article] Intramolecular Electron Transfer within the Substituted Tetrathiafulvalene-Quinone Dyads : FAcilitated by Metal Ion and Photomodulation in the Presence of Spiropyran (2007)
  • Author(s): Wu, H., Zhang, D., Su, L., Ohkubo, K., Zhang, C., Yin, S., Mao, L., Shuai, Z., Fukuzumi, S., Zhu, D.
  • Journal Title: J. Am. Chem. Soc. 129 Pages: 6839-6846
• [Journal Article] Modulation of Characteristics of a Ruthenium-Coordinated Flavin Analog Showing an Unprecedented Coordination Mode (2007)
  • Author(s): Miyazaki, S., Ohkubo, K., Kojima, T., Fukuzumi, S.
  • Journal Title: Angew. Chem. Int. Ed. 46 Pages: 905-908
• [Journal Article] π-Complex Fonnation between a Bisporphyrin and Acridinium Ion and the Photodynamics (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: ECS Transaction 12 Pages: 167-176
  • Peer Reviewed
• [Journal Article] Formation of a Charge-Separated State of a Fullerene-Trinitrofluorenone Dyad by Complexation with Scandium Ion (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: ECS Transaction 12 Pages: 15-25
  • Peer Reviewed
• [Journal Article] Efficient Photocatalytic Hydrogen Evolution without an Electron Mediator Using a Simple Electron Donor-Acceptor Dyad (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Physical Chemistry Chemical Physics 9 Pages: 1487-1492
  • Peer Reviewed
• [Journal Article] Fullerene Acting as an Electron Donor in a Donor-Acceptor Dyad to Attain the Long-Lived Charge-Separated State by Complexation with Scandium Ion (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemical Communications Pages: 589-591
  • Peer Reviewed
• [Journal Article] Modulation of Characteristics of a Ruthenium-Coordinated Flavin Analog Showing an Unprecedented Coordination Mode (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Angew. Chem. Int.Ed. 46 Pages: 905-908
  • Peer Reviewed
• [Journal Article] Scandium Ion-Accelerated Scavenging Reaction of Cumylperoxyl Radical by a CyclicNitroxyl Radical via Electron Transfer (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemistry Letters 36 Pages: 378-379
  • NAID: 10018829397
  • Peer Reviewed
• [Journal Article] Model Studies of 6,7-Indolequinone Cofactors of Quinohemoprotein Amine Dehydrogenases (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: The Journal of Organic Chemistry 72 Pages: 3369-3380
  • Peer Reviewed
• [Journal Article] Electron-Transfer Oxidation Prop'erties of Substituted Bi-, Ter-,and Quaterpyrroles (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: The Journal of Organic Chemistry 111 Pages: 4320-4326
  • Peer Reviewed
• [Journal Article] Porphyrin-Diones, and Porphyrin-Tetraones: Reversible Redox Units being Localized within the Porphyrin Macrocycle and Their Effect on Tautomerism (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Jaurtudl of the American I Chemical Society 129 Pages: 6576-6588
  • Peer Reviewed
• [Journal Article] mtramolecular Electron Transfer within the Substituted Tetrathiafulvalene-Quinone Dyads: FAcilitated by Metal Ion and Photomodniatinn in the Precenrcn of Spiropyran (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Jaurtudl of the American I Chemical Society 129 Pages: 6839-6846
  • Peer Reviewed
• [Journal Article] Photo induced Electron Transfer in aβ,β'-Pyrrolic Fused Ferro cene-Porphyrin-Fullerene (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Physical Chemistry Chemical Physics 9 Pages: 5260-5266
  • Peer Reviewed
• [Journal Article] A Long-Lived o-Semiqumone Radical Anion Is Formed from N-β-AlanyI-5-S-glutathionyl-3,4-dihydroxyphenylalanine (5-S-GAD), An Insect-Derived Antibacterial Substance (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Journal of Biochemistry 142 Pages: 41-48
  • Peer Reviewed
• [Journal Article] Synthesis and Characterization of Mononuclear Ruthenium(III)-Pyridylamme Complexes and Mechanistic Insights into Their Catalytic Alkene Fxinctionalization withm-Chloroperbenzo ic Acid (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemistry -A European Journal 13 Pages: 8212-8222
  • Peer Reviewed
• [Journal Article] Redox Behavior ofCyclo[6]pyrrole in the Formation of a Uranyl Complex (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Inorganic Chemistry 46 Pages: 5143-5145
  • Peer Reviewed
• [Journal Article] Effect of Solvent Polarity on the One-Electron Oxidation of Cyclic Nitroxyl Radicals (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemistry Letters 36 Pages: 914-915
  • NAID: 10019745653
  • Peer Reviewed
• [Journal Article] Quinoxaiino[2,3-b']porphyrins Behave as pai-Expanded Porphyrin upon One-Electron Reduction: Broad Control fo the Degree of Delocalization through Substitution at the Macrocycle Periphery (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: The Joui-nal of Physical Chemistry 111 Pages: 8762-8774
  • Peer Reviewed
• [Journal Article] A Discrete Assembly of a Distorted Mo(IV)-Pon)hyrin with a Directly Coordinated Keggin-Type Polvoxometalate (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemical Communications Pages: 3997-3999
  • Peer Reviewed
• [Journal Article] A Tigntiy Coupled Bis(zmc(II)phthalocyanme)-Perylenediiinide Ensemble to Yield Long-Lived Radical Ion PairState (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Organic Letters 9 Pages: 2481-2484
  • Peer Reviewed
• [Journal Article] Selective Inclusion of Electron-Donating Molecules into Porphyrin Nanochannels Derived from Self-Assembly of Saddle-Distorted Dicationic Porphyrins and Photoinduced Electron Transfer from from Guest Molecules to the Porphyrin Dications (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemistry -A European Jounwi 36 Pages: 8714-8725
  • Peer Reviewed
• [Journal Article] Enhanced Photo induced Oligomerization of FuUerene via Radical Coupling between FuUerene Radical Cation and Radical Anion using 9-Mesityi-lO-methylacridinium Ion (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemical Commimications Pages: 3139-3142
  • Peer Reviewed
• [Journal Article] Synthesis and Photophysical Studies of a New Non aggregated C60-Silicon Phthalocyanine-C_60 Triad (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Organic Letters 9 Pages: 3441-3444
  • Peer Reviewed
• [Journal Article] Photophysical and Electrochemical Characteristics and Cross-Linking of STAT-3 Proteins by an Efficient Bifiinctional Agent for Fluorescence Image-guided Photodynamic Therany (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Photochemical Photobiological Science 6 Pages: 1257-1267
  • Peer Reviewed
• [Journal Article] Design and Synthesis of Polymetallic Complexes Based on meso-Galix[4]pyrrole:Platform fnr Multielectron Chemistrv (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Journal of the American Chemical Society 129 Pages: 11696-11697
  • Peer Reviewed
• [Journal Article] Involvement of Electron Transfer in the Radical-scanvenging Reacrion ofResveratol (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Chemistry Letters 36 Pages: 1276-1277
  • Peer Reviewed
• [Journal Article] Nitroxyl Radicals: Electrochemical Redox Behaviour and Structure Activity Relationships (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Organic Biomolecular Chemistry 5 Pages: 3951-3955
  • Peer Reviewed
• [Journal Article] Spectroscopic Characterization of Photolytically Generated Radical Ion Pairs in Sinfrlfi-Wall Carbon Nanotubes Bearing Surface-Immobilized Tetrathiafulvalens (2007)
  • Author(s): Kei Ohkubo, et. al.
  • Journal Title: Journal of the American Chemical Society 130 Pages: 66-73
  • Peer Reviewed
• [Presentation] 電子ドテー連結アクリジニウムイオンの光電子移動状態を利用したトルエン類の酸素化及び過酸化水素生成反応 (2009)
  • Author(s): 大久保敬
  • Organizer: SORSTシンポジウム
  • Place of Presentation: 東京・品川
• [Presentation] 芳香族化合物のπダイマーラジカルカチホン生成による電子移動酸化反応の活性化 (2009)
  • Author(s): 大久保敬
  • Organizer: SORSTシンポジウム
  • Place of Presentation: 東京・品川
• [Presentation] ポルフィリンナノチャンネルの光伝導性及び光電気化学特性 (2009)
  • Author(s): 大久保敬
  • Organizer: SORSTシンポジウム
  • Place of Presentation: 東京・品川
• [Presentation] 金属イオンによる電子ドナー・アクセプター連結系分子の光電荷分離状態の長寿命化 (2009)
  • Author(s): 大久保敬
  • Organizer: SORSTシンポジウム
  • Place of Presentation: 東京・品川
• [Presentation] N, N-ジメチルアニリン・フラビンとフラーレン誘導体の超分子形成および有機デバイスへの応用 (2009)
  • Author(s): 大久保敬
  • Organizer: SORSTシンポジウム
  • Place of Presentation: 東京・品川
• [Presentation] ポルフィリン-フラーレン直結分子の長寿命電荷分離状態の生成 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] スカンジウムイオンによる亜鉛キノキサリノポルフィリン-金キノキサリノポルフィリン連結分子の光電荷シフト状態の長寿命化 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本木学船橋キャンパス
• [Presentation] フラーレンを包接したポルフィリンナノチューブの構造と光・電子物性 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] 電子ドナー置換アクリジニウムイオンを光電子移動触媒として用いた芳香族炭化水素の光酸素化及び過酸化水素生成反応 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] 光触媒修飾金属ナノ粒子を用いた光水素発生システムの構築 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] 高原子価マンガン(IV)オキソポルフィリンの電子移動還元反応 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] p-ベンゾキノン誘導体を電子受容体としたスーパーオキシド-スカンジウム錯体の電子移動反応 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] フラーレン誘導体とN, N-ジメチルアニリン-フラビン連結分子との超分子複合体の生成と光電変換特性 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] 金属フタロシアニン錯体のπダイマーラジカルカチオン生成によるその電子移動酸化反応の活性化 (2009)
  • Author(s): 大久保敬
  • Organizer: 第89日本化学会春季年会
  • Place of Presentation: 千葉・日本大学船橋キャンパス
• [Presentation] 金属イオンとの錯形成による金属フタロシアニン-電子アクセプター連結分子の光電荷分離状態生成 (2008)
  • Author(s): 大久保敬
  • Organizer: 第21回配位化合物の光化学討論会
  • Place of Presentation: 北里大学
  • Year and Date: 2008-08-07
• [Presentation] 金属イオンと錯形成したN, N-ジメチルアニリン-フラビン連結分子の光電子移動 (2008)
  • Author(s): 大久保敬
  • Organizer: 第21回配位化合物の光化学討論会
  • Place of Presentation: 北里大学
  • Year and Date: 2008-08-07
• [Presentation] 金属フタロシアニン錯体の光誘起自己促進電子移動反応 (2008)
  • Author(s): 大久保敬
  • Organizer: 第21回配位化合物の光化学討論会
  • Place of Presentation: 北里大学
  • Year and Date: 2008-08-07
• [Presentation] Closely Linked Electron Donor-Acceptor Dyads with Much Longer Charge-Separation Lifetimes than Natural Photosynthetic Reaction Center (2008)
  • Author(s): 大久保敬
  • Organizer: International Comference on Porphyrins and Phthalocyanines (ICPP-5)
  • Place of Presentation: ロシア・モスクワ
  • Year and Date: 2008-07-07
• [Presentation] The Effect of Sc3+ on the Redox Properties of Porphyrin-Quinoxaline Derivatives (2008)
  • Author(s): 大久保敬
  • Organizer: International Comference on Porphyrins and Phthalocyanines (ICPP-5)
  • Place of Presentation: ロシア・モスクワ
  • Year and Date: 2008-07-07
• [Presentation] A Supramolecular Assembly Composed of Saddle-Distorted Protonated Porphyrin and Zn-Phthalocyanine (2008)
  • Author(s): 大久保敬
  • Organizer: International Comference on Porphyrins and Phtha locyanines (ICPP-5)
  • Place of Presentation: ロシア・モスクワ
  • Year and Date: 2008-07-07
• [Presentation] PHOTOINDUCED CHARGE SEPARATION OF ZINC PHTHALOCYANINE PERYLENEBISIMIDE PENTAMERIC ARRAYS (2008)
  • Author(s): 大久保敬
  • Organizer: 213th ECS Meeting
  • Place of Presentation: アメリカ・アリゾナ州・フェニックス市
  • Year and Date: 2008-05-20
• [Presentation] Supramolecular Complex between an Electron Donor-Substituted Flavi and Fullerene with Receptors by Hydrogen Bonding (2008)
  • Author(s): 大久保敬
  • Organizer: 213th ECS Meeting
  • Place of Presentation: アメリカ・アリゾナ州・フェニックス市
  • Year and Date: 2008-05-20
• [Presentation] Exciplex mediated photoinduced electron transfer reactions of double-linked phthalocyanine-fullerene dyads (2008)
  • Author(s): 大久保敬
  • Organizer: 213th ECS Meeting
  • Place of Presentation: アメリカ・アリゾナ州・フェニックス市
  • Year and Date: 2008-05-20
• [Presentation] An Electronic Model for Porphyrins : A Two-Electron Oxidized Form of Quaterpyrrole that Acts as Both an Electron Donor and an Acceptor (2008)
  • Author(s): 大久保敬
  • Organizer: 213th ECS Meeting
  • Place of Presentation: アメリカ・アリゾナ州・フェニックス市
  • Year and Date: 2008-05-20
• [Presentation] コロールーフラーレン連結分子の光電荷分離状態の生成 (2008)
  • Author(s): 大久保 敬
  • Organizer: 第88日本化学会春季年会
  • Place of Presentation: 立教大学
  • Year and Date: 2008-03-26
• [Presentation] フタロシアニン-4分子ペリレンビスイミド連結系の光電荷分離状態の生成 (2008)
  • Author(s): 大久保 敬
  • Organizer: 第88日本化学会春季年会
  • Place of Presentation: 第88日本化学会春季年会
  • Year and Date: 2008-03-26
• [Presentation] Rational Design of Long-Lived Charge Separation (2008)
  • Author(s): Kei Ohkubo
  • Organizer: Osaka University Forum 2008
  • Place of Presentation: Milton Marks Conference Center "Auditorium" San Francisco, USA
• [Presentation] Elongation of Charge-Separation Lifetime of Zinc Quinoxalino- porphyrin-Gold Quinoxalinoporphyrin by Binding of Scandium Ion (2008)
  • Author(s): Kei Ohkubo, Rachel Garcia, Paul J. Sintic, Tony Khoury, Maxwell J. Crossley, Karl M. Kadish, Houston),Shunichi Fukuzumi
  • Organizer: The 5^<th> Asian-Oceanian Photochemistry Conference
  • Place of Presentation: Beijing, China
• [Presentation] Effects of Magnesium Ion on Photoinduced Electron Transfer in Zinc Phthalocyanine-Perylenebisimide Dyad and Triad (2008)
  • Author(s): Kei Ohkubo, Fernando Fenandez-Lazaro, Angela Sastre-Santos, Shunichi Fukuzumi
  • Organizer: 2008 Korea-Japan Symposium on Frontier Photoscience (KJFP 2008)
  • Place of Presentation: Jeju, Korea
• [Presentation] Closely Linked Electron Donor-Acceptor Dyads with Much Longer Charge-Separation Lifetimes than Natural Photosynthetic Reaction Center (2008)
  • Author(s): Kei Ohkubo
  • Organizer: 5th International Conference on Porphyrins and Phthalocyanines (ICPP-5)
  • Place of Presentation: Moscow, Russia
• [Presentation] A Discrete Supramolecular Conglomerate Composed of Saddle-Distorted Porphyrin Dication and Zn(II)-Phthalocyanine Complexes (2008)
  • Author(s): Tatsuhiko Honda, Takahiko Kojima, Kei Ohkubo, Motoo Shiro, Takahiro Kusukawa, Takamitsu Fukuda, Nagao Kobayashi, Shunichi Fukuzumi
  • Organizer: The 4^<th> Asian Biological Inorganic Chemistry Conference(AsBIC IV)
  • Place of Presentation: Jeju, Korea
• [Presentation] Photodynamics of Supramolecule Composed of Saddle-Distorted Protonated Porphyrin and Zn-Phthalocyanine (2008)
  • Author(s): Tatsuhiko Honda, Takahiko Kojima, Tatsuaki Nakanishi, Takamitsu Fukuda, Nagao Kobayashi, Kei Ohkubo, Shunichi Fukuzumi
  • Organizer: 5th International Conference on Porphyrins and Phthalocyanines (ICPP-5)
  • Place of Presentation: Moscow, Russia
• [Presentation] Homogeneous and Heterogeneoues Catalytic Reduction of Dioxygen Using Cobalt Corroles (2008)
  • Author(s): Kei Ohkubo, Jing Shen, Claude P. Gros, Jean-Michel Barbe, Karl M. Kadish, Roger Guilard, Shunichi Fukuzumi
  • Organizer: The 4th Asian Biological Inorganic Chemistry Conference (AsBIC IV)
  • Place of Presentation: Jeju, Korea
• [Presentation] Formation of the Charge-Separated State in N,N-Dimethylaniline-Flavin Dyad with Millisecond Lifetime in Solution at Room Temperature (2008)
  • Author(s): Motonobu Murakami, Kei Ohkubo, Shunichi Fukuzumi
  • Organizer: 2008 Korea-Japan Symposium on Frontier Photoscience (KJFP 2008)
  • Place of Presentation: Jeju, Korea
• [Presentation] A Supramolecular Assembly Composed of Saddle-Distorted Protonated Porphyrin and Zn-Phthalocyanine (2008)
  • Author(s): Takahiko Kojima, Tatsuhiko Honda, Tatsuaki Nakanishi, Kei Ohkubo, Takamitsu Fukuda, Nagao Kobayashi, and Shunichi Fukuzumi
  • Organizer: 5th International Conference on Porphyrins and Phthalocyanines (ICPP-5)
  • Place of Presentation: Moscow, Russia
• [Presentation] Photoinduced Charge Separation of Electron Donor-Substituted Flavin and Supramolecular Formation with Fullerene Receptor by Hydrogen Bonding (2008)
  • Author(s): Motonobu Murakami, Kei Ohkubo, Vito Sgobba, Dirk M. Guldi, Florian Wessendorf, Andreas Hirsch, Shunichi Fukuzumi
  • Organizer: 213th ECS Meeting
  • Place of Presentation: Phoenix, Arizona, USA
• [Presentation] A Supramolecular Complex between an Electron Donor-Substituted Flavin and Fullerene with Receptors by Hydrogen Bonding (2008)
  • Author(s): Motonobu Murakami, Kei Ohkubo, Vito Sgobba, Dirk M. Guldi, Florian Wessendorf, Andreas Hirsch, and Shunichi Fukuzumi
  • Organizer: The 1st International Global COE Symposium on Bio-Environmental Chemistry (GCOEBEC-1)
• [Presentation] Free Radical-Scavenging Reactions by Neurotransmitters (2008)
  • Author(s): Tomonori Kawashima, Kei Ohkubo, Yoshihiko Moro-oka, Shunichi Fukuzumi
  • Organizer: The 1st International Global COE Symposium on Bio-Environmental Chemistry (GCOEBEC-1)
• [Presentation] Dynamics in Photoinduced Electron-Transfer Reduction of Diprotonated Porphyrins with Conformational Distortion (2008)
  • Author(s): Tatsuaki Nakanishi, Kei Ohkubo, Takahiko Kojima, Shunichi Fukuzumi
  • Organizer: The 1st International Global COE Symposium on Bio-Environmental Chemistry (GCOEBEC-1)
  • Place of Presentation: 吹田
• [Presentation] フェロセン-亜鉛ポルフィリン-フラーレン3分子連結系の電子移動反応における構造依存性 (2008)
  • Author(s): 大久保敬
  • Organizer: 2008年光化学討論会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] 亜鉛ポルフィリンーフラーレン直結型2分子連結系の光電荷分離状態の生成 (2008)
  • Author(s): 大久保敬
  • Organizer: 2008年光化学討論会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] 電子ドナー置換10-メチルアクリジニウムイオンの光電子移動 (2008)
  • Author(s): 大久保敬
  • Organizer: 2008年光化学討論会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] N, N-ジメチルアニリン-フラビン連結分子の光電子移動における金属イオンの効果 (2008)
  • Author(s): 大久保敬
  • Organizer: 2008年光化学討論会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] アクリジニウム誘導体を光触媒として用いた芳香族炭化水素からのアルデヒドおよび過酸化水素生成反応 (2008)
  • Author(s): 大久保敬
  • Organizer: 2008年光化学討論会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
• [Presentation] 電子供与体・電子受容体両者の機能を有するπ拡張銀ポルフィリン錯体 (2008)
  • Author(s): 大久保敬
  • Organizer: 第58回錯体化学討論会
  • Place of Presentation: 金沢大学角間キャンパス
• [Presentation] Effects of Magnesium Ion on Photoinduced Electron Transfer in Zinc Phthalocyanine-Perylenebisimide Dyad and Triad (2008)
  • Author(s): 大久保敬
  • Organizer: 5th Korea-Japan Frontier Photoscience
  • Place of Presentation: 大韓民国・済州島
• [Presentation] Formation of the Charge-Separated State in N, N-Dimethylaniline-Flavin Dyad with Millisecond Lifetime in Solution at Room Temperature (2008)
  • Author(s): 大久保敬
  • Organizer: 5th Korea-Japan Frontier Photoscience
  • Place of Presentation: 大韓民国・済州島
• [Presentation] コロール-フラーレン連結分子を用いた非極性溶媒中における長寿命電荷分離状態の生成 (2008)
  • Author(s): 大久保敬
  • Organizer: 第19回基礎有機化学討論会
  • Place of Presentation: 大阪・大阪大学吹田キャンパス
• [Presentation] 神経伝達物質と活性酸素種モデルとの水素移動反応における金属イオンの効果 (2008)
  • Author(s): 大久保敬
  • Organizer: 第19回基礎有機化学討論会
  • Place of Presentation: 大阪・大阪大学吹田キャンパス
• [Presentation] Face-to-Faoe型亜鉛フタロシアニン二量体とフラーレンからなるドナー・アクモプター連結系の光電子移動反応 (2008)
  • Author(s): 大久保敬
  • Organizer: 第19回基礎有機化学討論会
  • Place of Presentation: 大阪・大阪大学吹田キャンパス
• [Presentation] 芳香族化合物の電子移動酸化における自己触媒作用とπダイマーラジカルカチオン生成 (2008)
  • Author(s): 大久保敬
  • Organizer: 第19回基礎有機化学討論会
  • Place of Presentation: 大阪・大阪大学吹田キャンパス
• [Presentation] ドデカフェニルポルフォジメテンの合成とその性質 (2008)
  • Author(s): 大久保敬
  • Organizer: 第19回基礎有機化学討論会
  • Place of Presentation: 大阪・大阪大学吹田キャンパス
• [Presentation] PHOTOINDUCED ELECTRON TRANSFER IN METAL PHTHALOCYA NINE-FULLERENE AND -PERYLENEDIIMIDE DYADS AND TRIADS (2008)
  • Author(s): 大久保敬
  • Organizer: 214th ECS Meeting
  • Place of Presentation: アメリカ・ハワイ州・ホノルル市
• [Presentation] PHOTOINDUCED CHARGE SEPARATION OF DIRECTLY LINKED ZINC PORPHYRIN-FULLERENE DYADS (2008)
  • Author(s): 大久保敬
  • Organizer: 214th ECS Meeting
  • Place of Presentation: アメリカ・ハワイ州・ホノルル市
• [Presentation] Elongation of Charge-Separation Lifetime of Zinc Quinoxalino- porphyrin -Gold Quinoxalinoporphyrin by Binding of Scandium Ion (2008)
  • Author(s): 大久保敬
  • Organizer: 5th Asian Photochemistry Conference
  • Place of Presentation: 中華人共和国・北京市
• [Presentation] Homogeneous and Heterogeneoues Catalytic Reduction of Dioxygen Using Cobalt Corroles (2008)
  • Author(s): 大久保敬
  • Organizer: 4th Asian Biological Inorganic Conference
  • Place of Presentation: 大韓民国・済州島
• [Presentation] Rational Design of Long-Lived Charge Separation (2008)
  • Author(s): 大久保敬
  • Organizer: Osaka University Forum
  • Place of Presentation: アメリカ・カリフォルニア州サンフランシスコ市
• [Presentation] 天然を凌駕する電荷分離寿命を有するドナー・アクセプター連結分子を用いた光触媒反応 (2007)
  • Author(s): Kei Ohkubo
  • Organizer: 新物質創製研究アスペクト研究交流会
  • Place of Presentation: 筑波大学
  • Year and Date: 2007-10-06
• [Presentation] 天然を凌駕する電荷分離寿命を有するドナー・アクセプター連結分子を用いた光触媒反応 (2007)
  • Author(s): 大久保 敬
  • Organizer: 新物質創世研究アスペクト研究会
  • Place of Presentation: 筑波大学
  • Year and Date: 2007-10-06
• [Presentation] 電子受容体を軸配位子とするシリコンフタロシアニンの光電荷分離 (2007)
  • Author(s): 大久保 敬
  • Organizer: 2007年光化学討論会
  • Place of Presentation: 信州大学旭キャンパス
  • Year and Date: 2007-09-27
• [Presentation] PHOTOPHYSICAL AND ELECTROCHEMICAL PROPERTIES OF MET ALLOBACTERIOCHLORINS FOR PHOTODYNA MIC THERAPY (2007)
  • Author(s): Kei Ohkubo
  • Organizer: The Electrochemical Society Meeting
  • Place of Presentation: アメリカ合衆国シカゴ市
  • Year and Date: 2007-05-09
• [Presentation] 長寿命の光電荷分離状態を有するドナー・アクセプター連結系分子の開発と応用 (2007)
  • Author(s): Kei Ohkubo
  • Organizer: 第1回デバイス物性研究会
  • Place of Presentation: 大阪大学
  • Year and Date: 2007-04-13
• [Presentation] 長寿命の光電荷分離状態を有するドナー・アクセプター連結系分子の開発と応用 (2007)
  • Author(s): 大久保 敬
  • Organizer: 第1回デバイス物性研究会
  • Place of Presentation: 大阪大学工学研究科
  • Year and Date: 2007-04-13
• [Presentation] Photophysical And Electrochemical Properties of Metallobacteriochlorins for Photodynamic Therapy (2007)
  • Author(s): Kei Ohkubo, Xiang Zheng, Yihui Chen, Ravindra K. Pandey, Riqiang Zhan, Karl M. Kadish, Shunichi Fukuzumi
  • Organizer: 211th ECS Meeting
  • Place of Presentation: Chicago, Illinois, USA
• [Presentation] Electron-Transfer Properties of Substituted Bi-, Ter-, and Quaterpyrroles (2007)
  • Author(s): Wenbo E, Kei Ohkubo, David Sanchez-Garcia, Elizabeth Karnas, Min Zhang, Jonathan L. Sessler, Shunichi Fukuzumi, Karl M. Kadisha
  • Organizer: 211th ECS Meeting
  • Place of Presentation: Chicago, Illinois, USA
• [Presentation] Photoinduced Electron Transfer IN Silicon Phthalocyanines Functionalized with C_<60> (2007)
  • Author(s): Angela Sastre-Santos, Luis Martin-Gomis, Maria Pascual del Riquelme, Fernando Fernandez-Lazaro, Kei Ohkubo, Shunichi Fukuzumi
  • Organizer: 211th ECS Meeting
  • Place of Presentation: Chicago, Illinois, USA
• [Remarks]
  • URL: http://www-etchem.mls.eng.osaka-u.ac.jp/mlset010/ohkubo/chemistry.html
• [Patent(Industrial Property Rights)] キノリニウムイオン誘導体、キノリニウムイオン誘導体の製造方法、キノリニウムイオン誘導体を用いた製品、キノリニウムイオン誘導体を用いた還元方法および酸化方法 (2009)
  • Inventor(s): 福住俊一, 小谷弘明, 大久保敬
  • Industrial Property Rights Holder: 大阪大学
  • Industrial Property Number: 2009-533049
  • Filing Date: 2009-03-10
• [Patent(Industrial Property Rights)] 新規9-置換アクリジニウム誘導体、および9-置換アクリジニウム誘導体を用いた芳香族アルデヒドと過酸化水素の同時製造方法 (2008)
  • Inventor(s): 大久保敬, 福住俊一, 岩田亮介, 水島健太郎, 鈴木信夫, 相馬和憲
  • Industrial Property Rights Holder: 東京化成工業株式会社
  • Industrial Property Number: 2008-255128
  • Filing Date: 2008-09-03
• [Patent(Industrial Property Rights)] 新規9-置換アクリジニウム誘導体、および9-置換アクリジニウム誘導体を用いた芳香族アルデヒドと過酸化水素の同時製造方法 (2008)
  • Inventor(s): 大久保敬
  • Industrial Property Rights Holder: 東京化成工業株式会社
  • Industrial Property Number: 2008-255128
  • Filing Date: 2008-09-03
• [Patent(Industrial Property Rights)] 水素発生触媒 (2007)
  • Inventor(s): 福住俊一, 小谷弘明, 大久保敬, 花崎亮
  • Industrial Property Rights Holder: JST
  • Industrial Property Number: 2007-247656
  • Filing Date: 2007-09-25