Takahiko Kojima

Overview

Best Publications

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

  Shunichi Fukuzumi;Takahiko Kojima

  382
  Citations

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

  Takahiko Kojima;Randolph A. Leising;Shiping Yan;Lawrence Que

  305
  Citations

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

  Dachao Hong;Yuto Tsukakoshi;Hiroaki Kotani;Tomoya Ishizuka

  220
  Citations

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

  Yuichirou Hirai;Takahiko Kojima;Yasuhisa Mizutani;Yoshihito Shiota

  164
  Citations

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

  Shunichi Fukuzumi;Tatsuhiko Honda;Kei Ohkubo;Takahiko Kojima

  156
  Citations

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

  Dachao Hong;Takuya Kawanishi;Takuya Kawanishi;Yuto Tsukakoshi;Hiroaki Kotani

  155
  Citations

• 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.

  Takahiko Kojima;Tatsuhiko Honda;Kei Ohkubo;Motoo Shiro

  150
  Citations

• 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.

  Takahiko Kojima;Kazuya Nakayama;Kenichiro Ikemura;Takashi Ogura

  145
  Citations

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

  Shunichi Fukuzumi;Shunichi Fukuzumi;Tatsuhiko Honda;Takahiko Kojima

  122
  Citations

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

  Atsutoshi Yokoyama;Takahiko Kojima;Kei Ohkubo;Shunichi Fukuzumi

  120
  Citations

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

  Takahiko Kojima;Takayuki Amano;Youichi Ishii;Masaaki Ohba

  109
  Citations

• A Directly Linked Ferrocene–Naphthalenediimide Conjugate: Precise Control of Stacking Structures of π‐Systems by Redox Stimuli

  Atsuro Takai;Takeshi Yasuda;Tomoya Ishizuka;Takahiko Kojima

  104
  Citations

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

  Tatsuhiko Honda;Tatsuaki Nakanishi;Kei Ohkubo;Takahiko Kojima

  104
  Citations

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

  Yoshihiro Shimoyama;Yoshihiro Shimoyama;Takahiko Kojima

  104
  Citations

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

  Shunichi Fukuzumi;Shunichi Fukuzumi;Takahiko Kojima;Yong Min Lee;Wonwoo Nam

  103
  Citations

• Homogeneous and Heterogeneous Photocatalytic Water Oxidation by Persulfate

  Shunichi Fukuzumi;Shunichi Fukuzumi;Shunichi Fukuzumi;Jieun Jung;Yusuke Yamada;Takahiko Kojima

  100
  Citations

• Selective methane oxidation by molecular iron catalysts in aqueous medium

  Unknown

  100
  Citations

• Nonplanar porphyrins: synthesis, properties, and unique functionalities.

  Unknown

  99
  Citations

• A Porphyrin Nanotube: Size‐Selective Inclusion of Tetranuclear Molybdenum–Oxo Clusters

  Ryosuke Harada;Yoshihisa Matsuda;Hisashi Ōkawa;Takahiko Kojima

  98
  Citations

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

  Hirofumi Nobukuni;Yuichi Shimazaki;Hidemitsu Uno;Yoshinori Naruta

  95
  Citations

• 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

  Takahiko Kojima;Ryosuke Harada;Tatsuaki Nakanishi;Kenji Kaneko

  92
  Citations

• Characteristics and reactivity of ruthenium–oxo complexes

  Tomoya Ishizuka;Hiroaki Kotani;Takahiko Kojima

  88
  Citations

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

  Shingo Ohzu;Tomoya Ishizuka;Yuichirou Hirai;Hua Jiang

  87
  Citations