World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
84
Citations
29280
World Ranking
2781
National Ranking
156

Takao Ikariya publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Takao Ikariya sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 298 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Takao Ikariya D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Takao Ikariya sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 84 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Takao Ikariya is affiliated with the Tokyo Institute of Technology in Japan. Their research primarily spans the fields of Materials Science and Chemistry, with notable emphasis on Materials Chemistry, Organic Chemistry, and Inorganic Chemistry. Key sub-disciplines also include Process Chemistry and Technology alongside Oncology.

The scientist's work addresses several main topics, such as Crystallization and Solubility Studies, X-ray Diffraction in Crystallography, Asymmetric Hydrogenation and Catalysis, and Axial and Atropisomeric Chirality Synthesis. Additional research areas involve Asymmetric Synthesis and Catalysis, Metal Complexes Synthesis and Properties, and Organometallic Complex Synthesis and Catalysis.

Frequent co-authors in their publications include Yohei Kashiwame, Shigeki Kuwata, Yoshihito Kayaki, Yasuhiro Sato, and Yuichi Kawata. These collaborations reflect consistent interdisciplinary approaches in their research projects.

Their most common publication venues include The Cambridge Structural Database, which features their work prominently. Other venues where the scientist has published include Chemical Communications, Molecules, Polyhedron, and Preprints.org.

Recent published papers by Takao Ikariya demonstrate the range of their research interests and are listed as follows:

  • Transfer hydrogenation of carbon dioxide via bicarbonate promoted by bifunctional C-N chelating Cp*Ir complexes, 2020, Chemical Communications
  • New Bifunctional Bis(azairidacycle) with Axial Chirality via Double Cyclometalation of 2,2'-Bis(aminomethyl)-1,1'-binaphthyl, 2021, Molecules
  • Synthesis, structures, and reactivities of six-membered C N chelate protic pyrazole complexes of iridium, 2021, Polyhedron
  • New Bifunctional Bis(azairidacycle) with Axial Chirality via Double Cyclometalation of 2,2'-Bis(aminomethyl)-1,1'-binaphthyl, 2021, Preprints.org
  • Synthesis of N,O-Chelating Hydrazidopalladium Complexes from 1,2-Bis(trifluoroacetyl)hydrazine, 2021, Inorganics

Best Publications

  • Asymmetric Transfer Hydrogenation of Aromatic Ketones Catalyzed by Chiral Ruthenium(II) Complexes

    Shohei Hashiguchi;Akio Fujii;Jun Takehara;Takao Ikariya

  • Homogeneous Catalysis in Supercritical Fluids.

    Philip G. Jessop;Takao Ikariya;Ryoji Noyori

  • Asymmetric transfer hydrogenation of ketones with bifunctional transition metal-based molecular catalysts.

    Takao Ikariya;A. John Blacker

  • The Catalyst Precursor, Catalyst, and Intermediate in the RuII-Promoted Asymmetric Hydrogen Transfer between Alcohols and Ketones

    Karl-Josef Haack;Shohei Hashiguchi;Akio Fujii;Takao Ikariya

  • Homogeneous Hydrogenation of Carbon Dioxide

    Philip G. Jessop;Takao. Ikariya;Ryoji. Noyori

  • Asymmetric Transfer Hydrogenation of Imines

    Nobuyuki Uematsu;Akio Fujii;Shohei Hashiguchi;Takao Ikariya

  • PRACTICAL ENANTIOSELECTIVE HYDROGENATION OF AROMATIC KETONES

    Takeshi Ohkuma;Hirohito Ooka;Shohei Hashiguchi;Takao Ikariya

  • Bifunctional transition metal-based molecular catalysts for asymmetric syntheses.

    Takao Ikariya

  • Homogeneous catalytic hydrogenation of supercritical carbon dioxide

    Philip G. Jessop;Takao Ikariya;Ryoji Noyori

  • trans‐[RuCl2(phosphane)2(1,2‐diamine)] and Chiral trans‐[RuCl2(diphosphane)(1,2‐diamine)]: Shelf‐Stable Precatalysts for the Rapid, Productive, and Stereoselective Hydrogenation of Ketones

    Henri Doucet;Takeshi Ohkuma;Kunihiko Murata;Tohru Yokozawa

  • Asymmetric Hydrogenation of Alkenyl, Cyclopropyl, and Aryl Ketones. RuCl2(xylbinap)(1,2-diamine) as a Precatalyst Exhibiting a Wide Scope

    Takeshi Ohkuma;Masatoshi Koizumi;Henri Doucet;Trang Pham

  • Preferential hydrogenation of aldehydes and ketones.

    Takeshi Ohkuma;Hirohito Ooka;Takao Ikariya;Ryoji Noyori

  • Kinetic Resolution of Racemic Secondary Alcohols by RuII‐Catalyzed Hydrogen Transfer

    Shohei Hashiguchi;Akio Fujii;Karl-Josef Haack;Kazuhiko Matsumura

  • New Chiral Rhodium and Iridium Complexes with Chiral Diamine Ligands for Asymmetric Transfer Hydrogenation of Aromatic Ketones

    Kunihiko Murata and;Takao Ikariya;Ryoji Noyori

  • N‐Heterocyclic Carbenes as Efficient Organocatalysts for CO2 Fixation Reactions

    Yoshihito Kayaki;Masafumi Yamamoto;Takao Ikariya

  • Amino alcohol effects on the ruthenium(II)-catalysed asymmetric transfer hydrogenation of ketones in propan-2-ol

    Jun Takehara;Shohei Hashiguchi;Akio Fujii;Shin-ichi Inoue

  • Catalytic Reductive Transformations of Carboxylic and Carbonic Acid Derivatives Using Molecular Hydrogen

    Pavel A. Dub;Takao Ikariya

  • Oxo-tethered ruthenium(II) complex as a bifunctional catalyst for asymmetric transfer hydrogenation and H2 hydrogenation.

    Taichiro Touge;Tomohiko Hakamata;Hideki Nara;Tohru Kobayashi

  • Living Polymerization of Phenylacetylenes Initiated by Rh(C.tplbond.CC6H5)(2,5-norbornadiene)[P(C6H5)3]2

    Yasuhisa Kishimoto;Peter Eckerle;Tatsuya Miyatake;Takao Ikariya

  • Catalytic Production of Dimethylformamide from Supercritical Carbon Dioxide

    Philip G. Jessop;Yi Hsiao;Takao Ikariya;Ryoji Noyori

Frequent Co-Authors

Ryoji Noyori
Ryoji Noyori Nagoya University
Ilya D. Gridnev
Ilya D. Gridnev Tohoku University
Takashi Koike
Takashi Koike Nippon Institute of Technology
Philip G. Jessop
Philip G. Jessop Queen's University
Kohtaro Osakada
Kohtaro Osakada Tokyo Institute of Technology
Akio Yamamoto
Akio Yamamoto Waseda University
Huilin Wan
Huilin Wan Xiamen University
Mizuki Tada
Mizuki Tada Nagoya University
Yasuhiro Iwasawa
Yasuhiro Iwasawa University of Electro-Communications

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