Takahiko Kojima

发表

A Ruthenium(III)-Oxyl Complex Bearing Strong Radical Character.

K. Yoshizawa, S. Nozawa, T. Okajima, 2016, Angewandte Chemie.

Cooperative Effects of Heterodinuclear IrIII-MII Complexes on Catalytic H2 Evolution from Formic Acid Dehydrogenation in Water.

Y. Himeda, Dachao Hong, Yoshihiro Shimoyama, 2020, Inorganic chemistry.

Structures and photoinduced electron transfer of protonated complexes of porphyrins and metallophthalocyanines

S. Fukuzumi, Takahiko Kojima, T. Honda, 2012 .

Regulation of redox potential of a pterin derivative bound to a ruthenium(II) complex by intermolecular hydrogen bonding with nucleobases.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2012, Angewandte Chemie.

Conformational Dynamics of Monomeric- vs Dimeric-like Features in Naphthalenediimide-based Conjugated Cyclophane.

T. Ishizuka, Takahiko Kojima, M. Takeuchi, 2019, Angewandte Chemie.

Conformational Dynamics of Monomer‐ versus Dimer‐like Features in a Naphthalenediimide‐Based Conjugated Cyclophane

T. Ishizuka, Takahiko Kojima, M. Takeuchi, 2019 .

3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2) and other heterocyclic amines as inhibitors of mitochondrial monoamine oxidases separated from human brain synaptosomes

T. Sugimura, K. Wakabayashi, M. Naoi, 1990, Neurochemistry International.

Development of functionality of metal complexes based on proton-coupled electron transfer.

Takahiko Kojima, 2020, Dalton transactions.

Proton-coupled electron transfer of ruthenium(III)-pterin complexes: a mechanistic insight.

S. Fukuzumi, J. Mayer, Takahiko Kojima, 2009, Journal of the American Chemical Society.

Preparation and proton transport property of N,N′- diethyldithiooxamidatocopper coordination polymer

H. Kitagawa, T. Kubo, Takahiko Kojima, 2005 .

A Mechanistic Dichotomy in Two-Electron Reduction of Dioxygen Catalyzed by N,N'-Dimethylated Porphyrin Isomers.

W. Suzuki, T. Ishizuka, Hiroaki Kotani, 2020, Chemistry.

Thermodynamics and Photodynamics of a Monoprotonated Porphyrin Directly Stabilized by Hydrogen Bonding with Polar Protic Solvents.

K. Ohkubo, S. Fukuzumi, K. Yoshizawa, 2017, Chemistry.

Binding of scandium ions to metalloporphyrin-flavin complexes for long-lived charge separation.

K. Ohkubo, S. Fukuzumi, K. Yoshizawa, 2014, Chemistry.

Structure and photoinduced electron transfer dynamics of a series of hydrogen-bonded supramolecular complexes composed of electron donors and a saddle-distorted diprotonated porphyrin.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010, Journal of the American Chemical Society.

Photocatalytic oxidation of organic compounds in water by using ruthenium(II)-pyridylamine complexes as catalysts with high efficiency and selectivity.

S. Fukuzumi, Y. Hirai, T. Ishizuka, 2013, Chemistry.

Multiply-fused porphyrins--effects of extended π-conjugation on the optical and electrochemical properties.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2013, Chemical communications.

Supramolecular structures and photoelectronic properties of the inclusion complex of a cyclic free-base porphyrin dimer and C60.

K. Ohkubo, S. Fukuzumi, F. Tani, 2010, Chemistry.

Quartet formation of a guanine derivative with an isopropyl group: crystal structures of "naked" G-quartets and thermodynamics of G-quartet formation.

S. Fukuzumi, Takahiko Kojima, M. Shiro, 2013, Organic & biomolecular chemistry.

Formation of a ruthenium(IV)-oxo complex by electron-transfer oxidation of a coordinatively saturated ruthenium(II) complex and detection of oxygen-rebound intermediates in C-H bond oxygenation.

S. Fukuzumi, T. Ogura, Takahiko Kojima, 2011, Journal of the American Chemical Society.

Excellent Oxygen Reduction Reaction Performance in Self-Assembled Amyloid-β/Platinum Nanoparticle Hybrids with Effective Platinum–Nitrogen Bond Formation

S. Barcikowski, Amandeep Jindal, T. Takei, 2019, ACS Applied Energy Materials.

Recent progress in oxidation chemistry of high-valent ruthenium-oxo and osmium-oxo complexes and related species

T. Ishizuka, Takahiko Kojima, H. Sugimoto, 2022, Coordination Chemistry Reviews.

Metal-Oxyl Species and Their Possible Roles in Chemical Oxidations.

Yoshihiro Shimoyama, Takahiko Kojima, 2019, Inorganic chemistry.

Formation of a Ruthenium(V)-Imido Complex and the Reactivity in Substrate Oxidation in Water through the Nitrogen Non-Rebound Mechanism.

S. Adachi, K. Yoshizawa, S. Nozawa, 2019, Inorganic chemistry.

Hydrogen atom abstraction reactions independent of C–H bond dissociation energies of organic substrates in water: significance of oxidant–substrate adduct formation

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2014 .

Synthesis and characterization of mononuclear ruthenium(III) pyridylamine complexes and mechanistic insights into their catalytic alkane functionalization with m-chloroperbenzoic acid.

K. Ohkubo, S. Fukuzumi, F. Tani, 2007, Chemistry.

Mechanistic study of methanol oxidation by RuIV–oxo complexes

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2015 .

Intramolecular rearrangement for regioselective complexation by intramolecular CH/pi interaction in a hydrophobic cavity of a ruthenium coordination sphere.

F. Tani, Y. Naruta, Y. Matsuda, 2004, Chemistry.

Charge separation in metallomacrocycle complexes linked with electron acceptors by axial coordination.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2009, Dalton transactions.

Crystal structures and properties of a monoprotonated porphyrin.

S. Fukuzumi, Takahiko Kojima, T. Honda, 2009, Chemical communications.

Crystal structures and electronic properties of saddle-distorted and protonated phthalocyanines.

S. Fukuzumi, Takahiko Kojima, N. Kobayashi, 2011, Angewandte Chemie.

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.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2008, Angewandte Chemie.

Mechanistic Insights into Homogeneous Electrocatalytic and Photocatalytic Hydrogen Evolution Catalyzed by High-Spin Ni(II) Complexes with S2N2-Type Tetradentate Ligands.

K. Ohkubo, S. Fukuzumi, K. Yoshizawa, 2018, Inorganic chemistry.

Heteronuclear Ru(II)Ag(I) complexes having a pyrroloquinolinequinone derivative as a bridging ligand.

K. Yoshizawa, T. Ishizuka, Takahiko Kojima, 2013, Inorganic chemistry.

Photochemical activation of ruthenium(II)-pyridylamine complexes having a pyridine-N-oxide pendant toward oxygenation of organic substrates.

K. Ohkubo, S. Fukuzumi, T. Ogura, 2011, Journal of the American Chemical Society.

Synthesis and characterization of novel Cu(II)–bipyridine complexes having functional groups and their application toward molecular recognition

Y. Naruta, Y. Matsuda, Takahiko Kojima, 2005 .

Efficient Near-Infrared Light-Driven Hydrogen Evolution Catalyzed by a Saddle-Distorted Porphyrin as a Photocatalyst

Hiroaki Kotani, Takahiko Kojima, T. Hasobe, 2020 .

Catalytic Oxidative Cracking of Benzene Rings in Water

Yoshihiro Shimoyama, T. Ishizuka, Hiroaki Kotani, 2018, ACS Catalysis.

A low-spin ruthenium(IV)-oxo complex: does the spin state have an impact on the reactivity?

S. Fukuzumi, K. Yoshizawa, Y. Hirai, 2010, Angewandte Chemie.

A Diprotonated Porphyrin as an Electron Mediator in Photoinduced Electron Transfer in Hydrogen-Bonded Supramolecular Assemblies

K. Ohkubo, S. Fukuzumi, M. Kawano, 2019, The Journal of Physical Chemistry C.

Construction of Sn(IV) porphyrin/trinuclear ruthenium cluster dyads linked by pyridine carboxylates: photoinduced electron transfer in the Marcus inverted region.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010, Chemistry.

A directly linked ferrocene-naphthalenediimide conjugate: precise control of stacking structures of π-systems by redox stimuli.

T. Ishizuka, Takahiko Kojima, T. Yasuda, 2013, Angewandte Chemie.

Mechanistic Insight into Dioxygen Evolution from Diastereomeric μ-Peroxo Dinuclear Co(III) Complexes Based on Stoichiometric Electron-Transfer Oxidation.

Dachao Hong, T. Ishizuka, Hiroaki Kotani, 2019, Inorganic chemistry.

Nonplanar porphyrins: synthesis, properties, and unique functionalities.

M. Senge, T. Ishizuka, Hiroaki Kotani, 2022, Chemical Society reviews.

A cationic copolymer as a cocatalyst for a peroxidase-mimicking heme-DNAzyme.

A. Maruyama, Naohiko Shimada, Hiroaki Kotani, 2021, Biomaterials science.

Synthesis, characterization, and distortion properties of vanadyl complexes of octaphenylporphyrin and dodecaphenylporphyrin

Ryosuke Harada, Takahiko Kojima, H. O̅kawa, 2005 .

Mechanistic Insight into Synergistic Catalysis of Olefin Hydrogenation by a Hetero-Dinuclear RuII-CoII Complex with Adjacent Reaction Sites.

Dachao Hong, Yoshihiro Shimoyama, T. Ishizuka, 2019, Inorganic Chemistry.

Efficient Photocatalytic CO2 Reduction by a Ni(II) Complex Having Pyridine Pendants through Capturing a Mg2+ Ion as a Lewis-Acid Cocatalyst.

Dachao Hong, T. Ishizuka, Hiroaki Kotani, 2019, Journal of the American Chemical Society.

Visible-Light-Driven Photocatalytic CO2 Reduction by a Ni(II) Complex Bearing a Bioinspired Tetradentate Ligand for Selective CO Production.

Dachao Hong, T. Ishizuka, Hiroaki Kotani, 2017, Journal of the American Chemical Society.

A triangular prismatic hexanuclear iridium(III) complex bridged by flavin analogues showing reversible redox processes.

S. Fukuzumi, Takahiko Kojima, M. Shiro, 2013, Dalton transactions.

Selective catalytic 2e--oxidation of organic substrates by an FeII complex having an N-heterocyclic carbene ligand in water.

K. Yoshizawa, Y. Shiota, Yoshihiro Shimoyama, 2020, Chemical communications.

Photoinduced electron transfer in supramolecular assemblies involving saddle-distorted porphyrins and phthalocyanines

S. Fukuzumi, Takahiko Kojima, T. Honda, 2009 .

Selective inclusion of electron-donating molecules into porphyrin nanochannels derived from the self-assembly of saddle-distorted, protonated porphyrins and photoinduced electron transfer from guest molecules to porphyrin dications.

K. Ohkubo, S. Fukuzumi, S. Yamauchi, 2007, Chemistry.

Synthesis and characterization of chromium(III) octaphenylporphyrin complexes with various axial ligands: An insight into porphyrin distortion

S. Yamauchi, Ryosuke Harada, R. Miyamoto, 2005 .

{N-[Bis(2-pyridyl)methyl]-N,N-bis(2-pyridylmethyl)amine-κ5N}chlororuthenium(II) perchlorate methanol solvate

C. Choma, Takahiko Kojima, David M. Weber, 2005 .

{N‐[Bis(2‐pyridyl)methyl]‐N,N‐bis(2‐pyridyl)methylamine‐κ5N}chlorozinc(II) perchlorate monohydrate

C. Choma, Takahiko Kojima, David M. Weber, 2004 .

Catalytic hydrocarbon oxygenation by ruthenium–pyridylamine complexes with alkyl hydroperoxides: a mechanistic insight

Y. Matsuda, Takahiko Kojima, H. Matsuo, 2000 .

Enhancement of 4-electron O2 reduction by a Cu(ii)-pyridylamine complex via protonation of a pendant pyridine in the second coordination sphere in water.

T. Ishizuka, Hiroaki Kotani, Takahiko Kojima, 2015, Chemical communications.

Selective Convergence to Atropisomers of a Porphyrin Derivative Having Bulky Substituents at the Periphery.

Shogo Tanaka, S. Uchida, T. Ishizuka, 2020, The Journal of organic chemistry.

Significant Enhancement of Hole Transport Ability in Conjugated Polymer/Fullerene Bulk Heterojunction Microspheres

Amandeep Jindal, A. Saeki, Hiroaki Kotani, 2019, ACS Applied Polymer Materials.

Anisotropic high electron mobility and photodynamics of a self-assembled porphyrin nanotube including C60 molecules

K. Ohkubo, S. Fukuzumi, F. Tani, 2009 .

Enclosure of a Keggin-type heteropolyoxometalate into a tubular π-space via hydrogen bonds with a nonplanar Mo(V)-porphyrin complex forming a supramolecular assembly.

S. Fukuzumi, Takahiko Kojima, Atsutoshi Yokoyama, 2011, Dalton transactions.

Structures and Magnetic Properties of Some Fe(III) Complexes with Hexadentate Ligands: in Connection with Spin-Crossover Behavior

S. Hayami, Takahiko Kojima, S. Osaki, 1997 .

Ruthenium(II)-Pyridylamine Complexes Having Functional Groups via Amide Linkages

Takahiko Kojima, S. Miyazaki, 2011 .

Catalytic Hydrocarbon Oxygenation by a Dinuclear Ruthenium (II) Complex with Molecular Oxygen

Y. Matsuda, Takahiko Kojima, 1999 .

Synthesis and characterization of novel ferrocene-containing pyridylamine ligands and their ruthenium(II) complexes: electronic communication through hydrogen-bonded amide linkage.

K. Ohkubo, S. Fukuzumi, K. Yoshizawa, 2008, Inorganic chemistry.

Remarkable enhancement of catalytic activity of a 2 : 1 complex between a non-planar Mo(v)-porphyrin and a ruthenium-substituted Keggin-type heteropolyoxometalate in catalytic oxidation of benzyl alcohols.

K. Ohkubo, S. Fukuzumi, T. Ishizuka, 2012, Dalton transactions.

A discrete conglomerate of a distorted Mo(v)-porphyrin with a directly coordinated Keggin-type polyoxometalate.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2007, Chemical communications.

(Acetonitrile-κN)(2,3,5,7,8,10,12,13,15,17,18,20-dodecaphenylporphyrinato-κ4N)zinc(II) acetonitrile solvate

Ryosuke Harada, Takahiko Kojima, 2004 .

Reactivity of a Ru(III)-hydroxo complex in substrate oxidation in water.

T. Ishizuka, Hiroaki Kotani, Takahiko Kojima, 2014, Chemical communications.

Photochemical and thermal isomerization of a ruthenium(II)-alloxazine complex involving an unusual coordination mode.

S. Fukuzumi, Takahiko Kojima, S. Miyazaki, 2008, Journal of the American Chemical Society.

Proceedings of the 69th General Meeting from April 11–13, 1983-Osaka, Japan

M. Makuuchi, T. Takada, H. Hasegawa, 1984, Gastroenterologia Japonica.

Substituent Effects at the β-Positions of the Nonfused Pyrroles in a Quadruply Fused Porphyrin on the Structure and Optical and Electrochemical Properties.

T. Ishizuka, Takahiko Kojima, Yuta Saegusa, 2018, Inorganic chemistry.

Cooperative catalysis of a trinuclear ruthenium(II) complex in transfer hydrogenation of ketones by formic acid

S. Fukuzumi, Takahiko Kojima, Y. Yano, 2011 .

Photocatalytic hydrogen evolution using a Ru(II)-bound heteroaromatic ligand as a reactive site.

S. Fukuzumi, K. Yoshizawa, Dachao Hong, 2020, Dalton transactions.

Ruthenium(II) pyridylamine complexes with diimine ligands showing reversible photochemical and thermal structural change.

S. Fukuzumi, Takahiko Kojima, S. Miyazaki, 2008, Chemistry.

Ruthenium-catalyzed selective and efficient oxygenation of hydrocarbons with water as an oxygen source.

S. Fukuzumi, Y. Mizutani, K. Yoshizawa, 2008, Angewandte Chemie.

Modulation of characteristics of a ruthenium-coordinated flavin analogue that shows an unusual coordination mode.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2007, Angewandte Chemie.

Synthesis and Characterization of Mononuclear and Dinuclear Ruthenium Complexes with Tris(2-pyridylmethyl)amine and Tris(5-methyl-2-pyridylmethyl)amine.

Y. Matsuda, Takahiko Kojima, M. Ohba, 1998, Inorganic chemistry.

Synthesis and Characterization of Ruthenium(II)–Nitrile Complexes with Bisamide-tpa Ligands (tpa = Tris(2-pyridylmethyl)amine)

K. Uezu, K. Yoshizawa, Y. Naruta, 2005 .

Redox-Noninnocent Behavior of Tris(2-pyridylmethyl)amine Bound to a Lewis Acidic Rh(III) Ion Induced by C-H Deprotonation.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2015, Journal of the American Chemical Society.

Toward a photochemical and thermal molecular machine: reversible ligand dissociation and binding in a ruthenium(II)-2,2'-bipyridine complex with tris(2-pyridylmethyl)amine.

Y. Matsuda, Takahiko Kojima, Yoshihisa Matsuda, 2004, Inorganic chemistry.

Complete photochromic structural changes in ruthenium(II)-diimine complexes, based on control of the excited states by metalation.

K. Yoshizawa, M. Kawano, Y. Shiota, 2013, Chemistry.

Mechanistic insights into photochromic behavior of a ruthenium(II)-pterin complex.

S. Fukuzumi, K. Yoshizawa, M. Kawano, 2011, Chemistry.

A tetranuclear iridium(iii) complex with a flavin analogue as a bridging ligand in different coordination modes and exchangeable anion encapsulation in a supramolecular cage.

S. Fukuzumi, Takahiko Kojima, M. Shiro, 2009, Chemical communications.

A Chemistry of Ruthenium-Tris(2-pyridylmethyl)amine Complexes

Takahiko Kojima, 2008 .

Control of redox reactivity of flavin and pterin coenzymes by metal ion coordination and hydrogen bonding

S. Fukuzumi, Takahiko Kojima, 2008, JBIC Journal of Biological Inorganic Chemistry.

A ruthenium pterin complex showing proton-coupled electron transfer: synthesis and characterization.

K. Ohkubo, S. Fukuzumi, Y. Matsuda, 2003, Angewandte Chemie.

Tetranuclear ruthenium(II) complex with a dinucleating ligand forming multi-mixed-valence states.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2014, Inorganic chemistry.

Synthesis and characterization of an azido-bridged dinuclear ruthenium(II) polypyridylamine complex forming a mixed-valence state.

T. Ishizuka, Hiroaki Kotani, Takahiko Kojima, 2013, Inorganic chemistry.

Ruthenium(II), Bis[N,N‐bis[(2‐pyridyl‐κN)methyl]‐2‐pyridinemethanamine‐κN1, κN2]di‐μ‐chlorodi

Takahiko Kojima, 2005 .

A Novel Ru(II)–DMSO Complex Having Non-coordinating 1-Naphthoylamide Arm: Effects of Intramolecular Hydrogen Bonding on Redox Potential of the Ruthenium Center

Y. Matsuda, Takahiko Kojima, 2005 .

Chiral induction upon coordination to form an enantiomeric bis-chelate ruthenium(II)–tris(3-methyl-2-pyridylmethyl)amine complex

Y. Matsuda, Takahiko Kojima, 2001 .

Alkane functionalization at nonheme iron centers. Stoichiometric transfer of metal-bound ligands to alkane

L. Que, R. Leising, Takahiko Kojima, 1993 .

Discrete π-stack of a tweezer-shaped naphthalenediimide-anthracene conjugate.

Waka Nakanishi, T. Ishizuka, Takahiko Kojima, 2020, Chemistry.

Synthesis and characterization of a novel macrocyclic ligand containing catechol donor groups and its oxovanadium(IV) complex

T. Ma, Y. Matsuda, Takahiko Kojima, 2000 .

Ring-fused porphyrins: extension of π-conjugation significantly affects the aromaticity and optical properties of the porphyrin π-systems and the Lewis acidity of the central metal ions.

T. Ishizuka, Hiroaki Kotani, Takahiko Kojima, 2015, Physical chemistry chemical physics : PCCP.

Impact of Distortion of Porphyrins on Axial Coordination in (Porphyrinato)zinc(II) Complexes with Aminopyridines as Axial Ligands

S. Fukuzumi, Ryosuke Harada, Takahiko Kojima, 2009 .

Synthesis and Characterization of Palladium(II)-Phosphole and -Biphosphole Complexes. Regulation of the Homoleptic Coordination Environment of Square-Planar Palladium(II)

Y. Matsuda, Takahiko Kojima, K. Saeki, 1998 .

Nanostructures and Electron‐Transfer Functions of Nonplanar Porphyrins

S. Fukuzumi, Takahiko Kojima, 2013 .

Redox properties of a bipyrimidine-bridged dinuclear ruthenium(II) complex

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2020 .

Importance of the Reactant-State Potentials of Chromium(V)-Oxo Complexes to Determine the Reactivity in Hydrogen-Atom Transfer Reactions.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2018, Inorganic chemistry.

Novel cofacial oxidative coupling reaction of phosphinine in the presence of CuI and ClO4-.

Y. Matsuda, Takahiko Kojima, Y. Ishioka, 2004, Chemical communications.

Synthesis and characterization of ruthenium(II)-pyridylamine complexes with catechol pendants as metal binding sites.

S. Fukuzumi, K. Yoshizawa, Y. Shiota, 2010, Inorganic chemistry.

Structures and properties of ruthenium(II) complexes of pyridylamine ligands with oxygen-bound amide moieties: regulation of structures and proton-coupled electron transfer.

Y. Matsuda, Takahiko Kojima, K. Hayashi, 2004, Inorganic chemistry.

A porphyrin nanotube: size-selective inclusion of tetranuclear molybdenum-oxo clusters.

Ryosuke Harada, Y. Matsuda, Takahiko Kojima, 2004, Angewandte Chemie.

Photocatalytic formation of dimethyllepidopterene from 9,10-dimethylanthracene via electron-transfer oxidation.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2006, Organic letters.

Observation of radical intermediates for unusual carbon-nitrogen bond formation of .alpha.-aminomalonate to give an .alpha.-diamine linkage. ESR studies on electron transfer reactions in cobalt(III)-polyamine complexes

S. Nakashima, Takahiko Kojima, M. Hidai, 1992 .

SYNTHESIS AND CHARACTERIZATION OF RUIIICL2(TPA)+ (TPA = TRIS(2-PYRIDYLMETHYL)AMINE) AND ITS REACTIVITY TOWARD ALKANE FUNCTIONALIZATION

Takahiko Kojima, 1996 .

Homogeneous Photocatalytic Water Oxidation with a Dinuclear Co(III)-Pyridylmethylamine Complex.

S. Fukuzumi, K. Yoshizawa, Dachao Hong, 2016, Inorganic chemistry.

Characteristics and reactivity of ruthenium-oxo complexes.

T. Ishizuka, Hiroaki Kotani, Takahiko Kojima, 2016, Dalton transactions.

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.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2016, Journal of the American Chemical Society.

Controlling the redox properties of a pyrroloquinolinequinone (PQQ) derivative in a ruthenium(II) coordination sphere.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2015, Dalton transactions.

Proton-coupled electron shuttling in a covalently linked ruthenium-copper heterodinuclear complex.

S. Fukuzumi, K. Yoshizawa, Y. Shiota, 2011, Journal of the American Chemical Society.

Crystal structures and solution properties of discrete complexes composed of saddle-distorted molybdenum(v)-dodecaphenylporphyrins and keggin-type heteropolyoxometalates linked by direct coordination.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010, Inorganic chemistry.

A supramolecular photocatalyst composed of a polyoxometalate and a photosensitizing water-soluble porphyrin diacid for the oxidation of organic substrates in water

K. Ohkubo, S. Fukuzumi, T. Ishizuka, 2018 .

Supramolecular interaction of fullerenes with a curved π-surface of a monomeric quadruply ring-fused porphyrin.

M. Kawano, Shigeki Mori, T. Ishizuka, 2015, Chemistry.

Dioxygen/Hydrogen Peroxide Interconversion Using Redox Couples of Saddle-Distorted Porphyrins and Isophlorins.

W. Suzuki, T. Ishizuka, Hiroaki Kotani, 2019, Journal of the American Chemical Society.

NH Tautomerism of a Quadruply Fused Porphyrin: Rigid Fused Structure Delays the Proton Transfer.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2018, The journal of physical chemistry. B.

Acid-Base Properties of a Freebase Form of a Quadruply Ring-Fused Porphyrin-Stepwise Protonation Induced by Rigid Ring-Fused Structure.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2017, The Journal of organic chemistry.

Frontispiece: Supramolecular Interaction of Fullerenes with a Curved π‐Surface of a Monomeric Quadruply Ring‐Fused Porphyrin

M. Kawano, Shigeki Mori, T. Ishizuka, 2015 .

Photofunctional nanomaterials composed of multiporphyrins and carbon-based π-electron acceptors

Shunichi Fukuzumi, S. Fukuzumi, Takahiko Kojima, 2008 .

Control of the spatial arrangements of supramolecular networks based on saddle-distorted porphyrins by intermolecular hydrogen bonding.

T. Ishizuka, Takahiko Kojima, M. Sankar, 2013, Dalton transactions.

Formation and Isolation of a Four-Electron-Reduced Porphyrin Derivative by Reduction of a Stable 20π Isophlorin.

K. Yoshizawa, W. Suzuki, Y. Shiota, 2018, Angewandte Chemie.

A porphyrin nanochannel: formation of cationic channels by a protonated saddle-distorted porphyrin and its inclusion behavior.

Ryosuke Harada, Takahiko Kojima, 2005, Chemical communications.

Formation of supramolecular hetero-triads by controlling the hydrogen bonding of conjugate bases with a diprotonated porphyrin based on electrostatic interaction.

K. Yoshizawa, W. Suzuki, Y. Shiota, 2017, Chemical communications.

Long-Range Order in Supramolecular π Assemblies in Discrete Multidecker Naphthalenediimides.

Y. Matsushita, T. Ishizuka, Takahiko Kojima, 2021, Journal of the American Chemical Society.

Intermolecular and intracomplex photoinduced electron transfer from planar and nonplanar metalloporphyrins to p-quinones.

S. Fukuzumi, P. Naumov, Takahiko Kojima, 2011, Chemistry.

Proton-coupled electron-transfer reduction of dioxygen catalyzed by a saddle-distorted cobalt phthalocyanine.

S. Fukuzumi, Takahiko Kojima, T. Honda, 2012, Journal of the American Chemical Society.

Porphyrin nanotubes based on self-assembly of Mo(V)-dodecaphenylporphyrin complexes and inclusion of Mo-Oxo clusters : Synthesis and characterization by X-ray crystallography and transmission electron microscopy

S. Fukuzumi, K. Kaneko, Ryosuke Harada, 2007 .

High-valent metal-oxo complexes generated in catalytic oxidation reactions using water as an oxygen source

S. Fukuzumi, Yong‐Min Lee, W. Nam, 2017 .

Efficient photocatalytic proton-coupled electron-transfer reduction of O2 using a saddle-distorted porphyrin as a photocatalyst.

W. Suzuki, T. Ishizuka, Hiroaki Kotani, 2019, Chemical communications.

Novel cofacial oxidative coupling reaction of phosphinine in the presence of Cu(i) and ClO4?Electronic supplementary information (ESI) available: Synthetic route to 1, NMR data of 1, ORTEP drawing of the asymmetric unit. See http://www.rsc.org/suppdata/cc/b3/b308892h/

Y. Matsuda, Takahiko Kojima, Y. Ishioka, 2004 .

Formation of dodecaphenylporphodimethene via facile protonation of saddle-distorted dodecaphenylporphyrin.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2008, Chemical communications.

Alkane Functionalization at Nonheme Iron Centers: Mechanistic Insights

L. Que, R. Leising, Takahiko Kojima, 1993 .

HYDROTHERMAL SYNTHESIS OF NOVEL CERIUM (III) AND MANGANSE(II) ACTIVATED CALCIUM HYDROGENPHOSPHATE ANHYDRATE PHOSPHORS EMITTING BY BLACK LIGHT IRRADIATION

Takahiko Kojima, M. Hashimoto, T. Toyama, 2004 .

Mechanistic insight into catalytic oxidations of organic compounds by ruthenium(IV)-oxo complexes with pyridylamine ligands

S. Fukuzumi, H. Jiang, Y. Hirai, 2012 .

Oxidation of Organic Substrates with RuIV=O Complexes Formed by Proton-Coupled Electron Transfer

T. Ishizuka, Takahiko Kojima, S. Ohzu, 2014, Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry.

Ruthenium(II) Complexes Having a Pincer-Type Ligand with Two N -Heterocyclic Carbene Moieties

Yoshihiro Shimoyama, T. Ishizuka, Hiroaki Kotani, 2018, Zeitschrift für anorganische und allgemeine Chemie.

A Novel and Highly Effective Halogenation of Alkanes with Halides on Oxidation with m-Chloroperbenzoic Acid: Looks Old, but New Reaction

Y. Matsuda, Takahiko Kojima, H. Matsuo, 1998 .

Theoretical study of oxidation of cyclohexane diol to adipic anhydride by [Ru(IV)(O)(tpa)(H2O)]2+ complex (tpa ═ tris(2-pyridylmethyl)amine).

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2011, Inorganic chemistry.

Proton shift upon one-electron reduction in ruthenium(II)-coordinated pterins.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2008, Angewandte Chemie.

Ruthenium‐Catalyzed Selective and Efficient Oxygenation of Hydrocarbons with Water as an Oxygen Source.

S. Fukuzumi, Y. Mizutani, K. Yoshizawa, 2008 .

Peptide Cross-linkers: Immobilization of Platinum Nanoparticles Highly Dispersed on Graphene Oxide Nanosheets with Enhanced Photocatalytic Activities.

T. Kondo, S. Barcikowski, J. Nakamura, 2017, ACS Applied Materials and Interfaces.

Identification of Intermediates in Peroxidase Catalytic Cycle of a DNAzyme Possessing Heme

Yasuhiko Yamamoto, Hiroaki Kotani, Takahiko Kojima, 2019, Bulletin of the Chemical Society of Japan.

Morphology and Viscoelastic Properties of Star-Shaped Styrene–Butadiene Radial Block Copolymers

T. Masuda, T. Takigawa, Takahiko Kojima, 1988 .

Photocatalytic Carbon Dioxide Reduction Using Nickel Complexes as Catalysts

Takahiko Kojima, 2020 .

Homogeneous and Heterogeneous Photocatalytic Water Oxidation by Persulfate.

S. Fukuzumi, Yusuke Yamada, W. Nam, 2016, Chemistry, an Asian journal.

Intermediate-Spin Iron(III) Complexes Having a Redox-Noninnocent Macrocyclic Tetraamido Ligand.

K. Yoshizawa, M. Kawano, S. Nozawa, 2018, Inorganic chemistry.

Reorganization energies of diprotonated and saddle-distorted porphyrins in photoinduced electron-transfer reduction controlled by conformational distortion.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2009, Journal of the American Chemical Society.

Formation of a Long-Lived Photoinduced Electron-Transfer State in an Electron Acceptor−Donor−Acceptor Porphyrin Triad Connected by Coordination Bonds

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010 .

Selective methane oxidation by molecular iron catalysts in aqueous medium

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2023, Nature.

Molecular Recognition by a Cu(II)-2,2′-bipyridine Complex Involving Coordination and Hydrogen Bonding

Y. Naruta, Y. Matsuda, Takahiko Kojima, 2003 .

Molecular assemblies based on strong axial coordination in metal complexes of saddle-distorted dodecaphenylporphyrins

S. Fukuzumi, T. Ishizuka, Takahiko Kojima, 2015 .

Formation of a hybrid compound composed of a saddle-distorted Tin(IV)-porphyrin and a Keggin-type heteropolyoxometalate to undergo intramolecular photoinduced electron transfer.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2011, Journal of Physical Chemistry A.

Mechanistic Insight into Concerted Proton-Electron Transfer of a Ru(IV)-Oxo Complex: A Possible Oxidative Asynchronicity.

K. Yoshizawa, Y. Shiota, T. Ishizuka, 2020, Journal of the American Chemical Society.

Proton-coupled electron transfer in ruthenium(II)-pterin complexes: formation of ruthenium-coordinated pterin radicals and their electronic structures.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2008, Inorganic chemistry.

Synthesis of a one-dimensional metal-dimer assembled system with interdimer interaction, M2(dtp)4 (M = Ni, Pd; dtp = dithiopropionato).

H. Kitagawa, A. Kobayashi, Takahiko Kojima, 2006, Inorganic chemistry.

Fundamental electron-transfer and proton-coupled electron-transfer properties of Ru(iv)-oxo complexes.

M. Kubo, K. Yoshizawa, Y. Shiota, 2019, Dalton transactions.

Porphyrin nanochannels reinforced by hydrogen bonding.

S. Fukuzumi, Yusuke Yamada, T. Ishizuka, 2012, Chemical communications.

Charge Separation in Metallomacrocycle Complexes Linked with Electron Acceptors by Axial Coordination

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2009 .

Photoconductivity of Porphyrin Nanochannels Composed of Diprotonated Porphyrin Dications with Saddle Distortion and Electron Donors

K. Ohkubo, S. Fukuzumi, K. Nakayama, 2008 .

Formation of a supramolecular assembly between a Na(+)-templated G-quartet and a Ni(II)-porphyrin complex.

S. Fukuzumi, Takahiko Kojima, Y. Inui, 2013, Dalton transactions.

Formation and characterization of a reactive chromium(v)–oxo complex: mechanistic insight into hydrogen-atom transfer reactions

Y. Shiota, Hiroaki Kotani, Takahiko Kojima, 2014, Chemical science.

Conformational Dynamics of Monomer‐ versus Dimer‐like Features in a Naphthalenediimide‐Based Conjugated Cyclophane

Takahiko Kojima, M. Takeuchi, Atsuro Takai, 2020, Angewandte Chemie International Edition.

A directly linked ferrocene-naphthalenediimide conjugate: precise control of stacking structures of π-systems by redox stimuli.

Takahiko Kojima, T. Yasuda, M. Takeuchi, 2013, Angewandte Chemie.

Selective Oxidation of Hydrocarbons by Molecular Iron Catalysts Based on Molecular Recognition through π–π Interaction in Aqueous Medium

Hiroaki Kotani, Takahiko Kojima, Hiroto Fujisaki, 2024, ACS Catalysis.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010, Inorganic Chemistry.

Structure and photoinduced electron transfer dynamics of a series of hydrogen-bonded supramolecular complexes composed of electron donors and a saddle-distorted diprotonated porphyrin.

K. Ohkubo, S. Fukuzumi, Takahiko Kojima, 2010, Journal of the American Chemical Society.

Thermodynamics and Photodynamics of a Monoprotonated Porphyrin Directly Stabilized by Hydrogen Bonding with Polar Protic Solvents.

K. Ohkubo, S. Fukuzumi, K. Yoshizawa, 2017, Chemistry.

Synthesis, structure and physicochemical properties of a saddle-distorted porphyrin with a peripheral carboxyl group

T. Ma, Takahiko Kojima, M. Shiro, 2011 .

Enhancement of Reactivity of a RuIV–Oxo Complex in Oxygen-Atom-Transfer Catalysis by Hydrogen-Bonding with Amide Moieties in the Second Coordination Sphere

Y. Shiota, Hiroaki Kotani, Takahiko Kojima, 2023, JACS Au.

Control of electron-transfer reduction by protonation of zinc octabutoxyphthalocyanine assisted by intramolecular hydrogen bonding.

S. Fukuzumi, Takahiko Kojima, T. Honda, 2011, Chemical communications.

Development of functionality of metal complexes based on proton-coupled electron transfer.

Takahiko Kojima, 2019, Dalton transactions.