Kojima Takahiko
- Articles
- A supramolecular photocatalyst composed of a polyoxometalate and a photosensitizing watersoluble porphyrin diacid for the oxidation of organic substrates in water
Ishizuka Tomoya; Ohkawa Shumpei; Ochiai Hidemi; Hashimoto...
Green Chemistry/20(9)/pp.1975-1980, 2018-03 - Intermediate-Spin Iron(III) Complexes Having a Redox-Noninnocent Macrocyclic Tetraamido Ligand
Kojima Takahiko; Ogishima Fumiya; Nishibu Takahisa; Kotan...
Inorganic Chemistry/57(16)/pp.9683-9695, 2018-03 - Substituent Effects at the β-Positions of the Nonfused Pyrroles in a Quadruply Fused Porphyrin on the Structure and Optical and Electrochemical Properties
Saegusa Yuta; Ishizuka Tomoya; Kojima Takahiko
Inorganic Chemistry/57(3)/pp.1106-1115, 2018-02 - NH Tautomerism of a Quadruply Fused Porphyrin: Rigid Fused Structure Delays the Proton Transfer
Saegusa Yuta; Ishizuka Tomoya; Shiota Yoshihito; Yoshizaw...
The Journal of Physical Chemistry B/122(1)/pp.316-327, 2018-01 - Formation and Isolation of a Four-Electron Reduced Porphyrin Derivative via Further Reduction of a Stable 20π Isophlorin
Suzuki Wataru; Kotani Hiroaki; Ishizuka Tomoya; Shiota Y...
Angewandte Chemie International Edition/57(7)/pp.1973-1977, 2018-02 - 金属錯体によるメタンのC-H結合活性化
Kojima Takahiko
CHEMISTRY/72(6)/pp.68-69, 2017-06 - Formation of supramolecular hetero-triads by controlling the hydrogen bonding of conjugate bases with a diprotonated porphyrin based on electrostatic interaction
Suzuki Wataru; Kotani Hiroaki; Ishizuka Tomoya; Shiota Y...
Chemical Communications/53(47)/pp.6359-6362, 2017-05 - Visible-Light-Driven Photocatalytic CO2 Reduction by a Ni(II) Complex Bearing a Bioinspired Tetradentate Ligand for Selective CO Production
Hong Dachao; Tsukakoshi Yuto; Kotani Hiroaki; Ishizuka T...
Journal of the American Chemical Society/139(19)/pp.6538-6541, 2017-05 - Thermodynamics and Photodynamics of a Monoprotonated Porphyrin Directly Stabilized by Hydrogen Bonding with Polar Protic Solvents
Suzuki Wataru; Kotani Hiroaki; Ishizuka Tomoya; Ohkubo K...
CHEMISTRY A European Journal/23(19)/pp.4669-4679, 2017-04 - Peptide Crosslinkers: Immobilization of Platinum Nanoparticles Highly Dispersed on Graphene Oxide Nanosheets with Enhanced Photocatalytic Activities
Mizutaru Tsukasa; Marzun Galina; Kohsakowski Sebastian; B...
ACS Appl. Mater. Interfaces/9(11)/pp.9996-10002, 2017-03 - Acid-Base Properties of a Freebase Form of a Quadruply-Ring-Fused Porphyrin—Stepwise Protonation Induced by Rigid Ring-Fused Structure
Yuta Saegusa; Tomoya Ishizuka; Yoshihito Shiota; Kazunari Yo...
J. Org. Chem./82(1)/pp.322-330, 2017-01 - Characteristics and Reactivity of Ruthenium-Oxo Complexes
Ishizuka Tomoya; Hiroaki Kotani; Takahiko Kojima
Dalton Transactions/45(42)/pp.16727-16750, 2016-10 - A Ruthenium(III)–Oxyl Complex Bearing Strong Radical Character
Yoshihiro Shimoyama; Tomoya Ishizuka; Hiroaki Kotani; Yoshih...
Angewandte Chemie International Edtion/55(45)/pp.14041-14045, 2016-10 - Mechanistic Insights into C−H Oxidations by Ruthenium(III)-Pterin Complexes: Impact of Basicity of the Pterin Ligand and Electron Acceptability of the Metal Center on the Transition States
Hiroumi Mitome; Tomoya Ishizuka; Hiroaki Kotani; Yoshihito S...
Journal of the Americal Chemical Society/138(30)/pp.9508-9520, 2016-08 - Homogeneous and Heterogeneous Photocatalytic Oxidation of Water by Persulfate
S. Fukuzumi; J. Jung; Y. Yamada; Kojima Takahiko; W. Nam
CHEMSTRY - An Asian Journal/11(8)/pp.1138-1150, 2016-02 - Homogeneous Photocatalytic Water Oxidation with a Dinuclear Co(III)-Pyridylmethylamine Complex
Tomoya Ishizuka; Atsuko Watanabe; Hiroaki Kotani; Dachao Hon...
Inorganic Chemistry/55(3)/pp.1154-1164, 2016-01 - Redox-Noninnocent Behavior of Tris(2-pyridylmethyl)amine Bound to a Lewis Acidic Rh(III) Ion Induced by C-H Deprotonation
Kotani Hiroaki; Sugiyama Takumi; Ishizuka Tomoya; Shio...
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY/137(35)/pp.11222-11225, 2015-09 - Enhancement of 4-electron O-2 reduction by a Cu(II)-pyridylamine complex via protonation of a pendant pyridine in the second coordination sphere in water
Kotani Hiroaki; Yagi Tomomi; Ishizuka Tomoya; Kojima ...
CHEMICAL COMMUNICATIONS/51(69)/pp.13385-13388, 2015 - Supramolecular Interaction of Fullerenes with a Curved π-Surface of a Monomeric Quadruply Ring-Fused Porphyrin
Kojima Takahiko
CHEMISTRY A European Journal/21(14)/pp.5302-5306, 2015-03 - Mechanistic Study of Methanol Oxidation by RuIV–oxo complexes
Kojima Takahiko
Journal of Porphyrins and Phthalocyanines/19(1-3)/pp.417-427, 2015-03 - Controlling the redox properties of a pyrroloquinolinequinone (PQQ) derivative in a ruthenium(II) coordination sphere
Kojima Takahiko; Hiroumi Mitome; Tomoya Ishizuka; Yoshihito ...
Dalton Transactions/44(7)/pp.3151-3158, 2014-12 - Molecular Assemblies Based on Strong Axial Coordination in Metal Complexes of Saddle-Distorted Dodecaphenylporphyrins
Kojima Takahiko; Tomoya Ishizuka
Journal of Porphyrins and Phthalocyanines/19(1-3)/pp.32-45, 2015-03 - Formation and Characterization of a Reactive Chromium(V)-Oxo Complex: A Mechanistic Insight into Hydrogen-Atom Transfer Reactions
Kojima Takahiko; Hiroaki Kotani; Suzue Kaida; Tomoya Ishizuk...
Chemical Science/6(2)/pp.945-955, 2014-10 - Tetranuclear Ru(II) Complex with a Dinucleating Ligand Forming Multi-Mixed-Valence States
Kojima Takahiko; Shingo Ohzu; Tomoya Ishizuka; Hiroaki Kotan...
Inorganic Chemistry/53(24)/pp.12677-12679, 2014-11 - Reactivity of a Ru(III)-hydroxo complex in substrate oxidations in water
Kojima Takahiko; Shingo Ohzu; Tomoya Ishizuka; Hiroaki Kotani
Chemical Communications/50(95)/pp.15018-15021, 2014-10 - more...
- A supramolecular photocatalyst composed of a polyoxometalate and a photosensitizing watersoluble porphyrin diacid for the oxidation of organic substrates in water