World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
82
Citations
23144
World Ranking
3109
National Ranking
233

Jun Okuda 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 Jun Okuda 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: 503 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

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

Jun Okuda 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 Jun Okuda 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: 82 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Overview

Jun Okuda is affiliated with RWTH Aachen University in Germany and conducts research primarily in the fields of Materials Science and Chemistry. Their scholarly output encompasses numerous studies focusing on the synthesis, characterization, and catalytic applications of inorganic and organometallic compounds.

Their work spans several subfields, notably Materials Chemistry, Organic Chemistry, Inorganic Chemistry, Molecular Biology, and Process Chemistry and Technology. Within these domains, Okuda has contributed extensively to topics including crystallization and solubility studies, X-ray diffraction in crystallography, and organometallic complex synthesis and catalysis. Other significant research areas include organoboron and organosilicon chemistry, carbon dioxide utilization in catalysis, synthesis and characterization of novel inorganic/organometallic compounds, and coordination chemistry and organometallics.

Okuda has published research in various venues, with frequent contributions to:

  • The Cambridge Structural Database
  • Chemistry - A European Journal
  • Angewandte Chemie International Edition
  • Angewandte Chemie
  • Inorganic Chemistry

Their recent papers illustrate the range of their work and include:

  • Engineering and emerging applications of artificial metalloenzymes with whole cells (2021, Nature Catalysis)
  • Molecular Zinc Hydride Cations [ZnH]+: Synthesis, Structure, and CO2 Hydrosilylation Catalysis (2020, Angewandte Chemie International Edition)
  • Reactivity of a Molecular Calcium Hydride Cation ([CaH]+) Supported by an NNNN Macrocycle (2020, Inorganic Chemistry)
  • Cationic Zinc Hydride Catalyzed Carbon Dioxide Reduction to Formate: Deciphering Elementary Reactions, Isolation of Intermediates, and Computational Investigations (2021, Chemistry - A European Journal)
  • Calcium Hydride Catalysts for Olefin Hydrofunctionalization: Ring-Size Effect of Macrocyclic Ligands on Activity (2020, Chemistry - A European Journal)

Okuda frequently collaborates with a number of researchers, with notable co-authorship counts including Thomas P. Spaniol, Laurent Maron, Priyabrata Ghana, Florian Ritter, and Louis J. Morris. These collaborations contribute to the multidisciplinary nature of Okuda's research portfolio.

Best Publications

  • Mono(cyclopentadienyl) complexes of the rare-earth metals.

    Stefan Arndt;Jun Okuda

  • Cationic organometallic complexes of scandium, yttrium, and the lanthanoids.

    Peter M. Zeimentz;Stefan Arndt;Benjamin R. Elvidge;Jun Okuda

  • Functionalized cyclopentadienyl ligands, IV. Synthesis and complexation of linked cyclopentadienyl‐amido ligands

    Jun Okuda

  • Single-Component Polymerization Catalysts for Ethylene and Styrene: Synthesis, Characterization, and Reactivity of Alkyl and Hydrido Yttrium Complexes Containing a Linked Amido-Cyclopentadienyl Ligand

    Kai C. Hultzsch;Peter Voth;Klaus Beckerle;Thomas P. Spaniol

  • Kinetics and Mechanism of l-Lactide Polymerization by Rare Earth Metal Silylamido Complexes: Effect of Alcohol Addition

    Haiyan Ma;Jun Okuda

  • Highly Heteroselective Ring-Opening Polymerization of rac-Lactide Initiated by Bis(phenolato)scandium Complexes†

    Haiyan Ma;Thomas P. Spaniol;Jun Okuda

  • Magnesium hydridotriphenylborate [Mg(thf)6][HBPh3]2: a versatile hydroboration catalyst

    Debabrata Mukherjee;Satoru Shirase;Thomas P. Spaniol;Kazushi Mashima

  • Structurally well-defined group 4 metal complexes as initiators for the ring-opening polymerization of lactide monomers

    Andreas Sauer;Andreas Kapelski;Christophe Fliedel;Christophe Fliedel;Samuel Dagorne

  • Ancillary ligand effect on single-site styrene polymerization: isospecificity of group 4 metal bis(phenolate) catalysts.

    Carmine Capacchione;Antonio Proto;Henner Ebeling;Rolf Mülhaupt

  • Alkali Metal Hydridotriphenylborates [(L)M][HBPh3] (M = Li, Na, K): Chemoselective Catalysts for Carbonyl and CO2 Hydroboration

    Debabrata Mukherjee;Hassan Osseili;Thomas P. Spaniol;Jun Okuda

  • Cationic alkyl complexes of the rare-earth metals: Synthesis, structure, and reactivity

    Stefan Arndt;Jun Okuda

  • Cationic yttrium methyl complexes as functional models for polymerization catalysts of 1,3-dienes.

    Stefan Arndt;Klaus Beckerle;Peter M. Zeimentz;Thomas P. Spaniol

  • Synthesis and Characterization of Zirconium Complexes Containing a Linked Amido-Fluorenyl Ligand

    Jun Okuda;Florian J. Schattenmann;Sigrid Wocadlo;Werner Massa

  • Half‐Sandwich Alkyl and Hydrido Complexes of Yttrium: Convenient Synthesis and Polymerization Catalysis of Polar Monomers

    Kai C. Hultzsch;Thomas P. Spaniol;Jun Okuda

  • Rare earth metal complexes that contain linked amido-cyclopentadienyl ligands: ansa-metallocene mimics and “constrained geometry” catalysts

    Jun Okuda

  • Homogeneous Ethylene‐Polymerization Catalysts Based on Alkyl Cations of the Rare‐Earth Metals: Are Dicationic Mono(alkyl) Complexes the Active Species?

    Stefan Arndt;Thomas P. Spaniol;Jun Okuda;Jun Okuda

  • Copolymerization of Ethene with Styrene Using Methylaluminoxane-Activated Bis(phenolate) Complexes

    Friedrich G. Sernetz;Rolf Mülhaupt;Stefan Fokken;Jun Okuda

  • Initiators for the stereoselective ring-opening polymerization of meso-lactide

    Jean-Charles Buffet;Jun Okuda

  • Rare-earth metal complexes supported by 1,omega-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, structure, and heteroselective ring-opening polymerization of rac-lactide.

    Haiyan Ma;Thomas P. Spaniol;Jun Okuda

  • Organometallic oxides: the example of trioxo-(η5-pentamethylcyclopentadienyl)rhenium(VII)

    Wolfgang A. Herrmann;Eberhardt Herdtweck;Martina Flöel;Jürgen Kulpe

Frequent Co-Authors

Thomas P. Spaniol
Thomas P. Spaniol RWTH Aachen University
Laurent Maron
Laurent Maron Federal University of Toulouse Midi-Pyrénées
Ulrich Schwaneberg
Ulrich Schwaneberg RWTH Aachen University
Kai C. Hultzsch
Kai C. Hultzsch University of Vienna
Rolf Mülhaupt
Rolf Mülhaupt University of Freiburg
Kazushi Mashima
Kazushi Mashima Osaka University
Wolfgang A. Herrmann
Wolfgang A. Herrmann Technical University of Munich
Ulli Englert
Ulli Englert RWTH Aachen University
Antonio Proto
Antonio Proto University of Salerno
Werner Massa
Werner Massa Philipp University of Marburg

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