World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
59
Citations
13399
World Ranking
10074
National Ranking
718

Takeji Takui 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 Takeji Takui 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: 446 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

Takeji Takui 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 Takeji Takui 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: 59 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Overview

Takeji Takui is affiliated with Osaka Metropolitan University in Japan and specializes in Materials Science. Their research predominantly focuses on Materials Chemistry, comprising the majority of their publications, along with significant work in Organic Chemistry, Electronic, Optical and Magnetic Materials, Artificial Intelligence, and Atomic and Molecular Physics and Optics.

Their scientific contributions cover a range of topics including crystallization and solubility studies, X-ray diffraction in crystallography, magnetism in coordination complexes, synthesis and properties of aromatic compounds, electron spin resonance studies, quantum information and cryptography, and quantum and electron transport phenomena.

Takui has published numerous papers, with some recent notable works being:

  • Bis-periazulene (Cycloheptadeffluorene) as a Nonalternant Isomer of Pyrene: Synthesis and Characterization of Its Triaryl Derivatives, 2022, Journal of the American Chemical Society
  • Synthesis and Isolation of a Kekulé Hydrocarbon with a Triplet Ground State, 2022, Angewandte Chemie International Edition
  • A Kinetically Stabilized Nitrogen-Doped Triangulene Cation: Stable and NIR Fluorescent Diradical Cation with Triplet Ground State, 2023, Angewandte Chemie International Edition
  • Bayesian phase difference estimation: a general quantum algorithm for the direct calculation of energy gaps, 2021, Physical Chemistry Chemical Physics
  • Adiabatic state preparation of correlated wave functions with nonlinear scheduling functions and broken-symmetry wave functions, 2022, Communications Chemistry

The frequent publication venues in which Takui's work appears include:

  • The Cambridge Structural Database
  • Applied Magnetic Resonance
  • Angewandte Chemie International Edition
  • The Journal of Physical Chemistry Letters
  • Chemistry - A European Journal

They have collaborated extensively with coauthors such as Kazunobu Sato, Daisuke Shiomi, Kenji Sugisaki, Shuichi Suzuki, and Masatoshi Kozaki, with collaboration counts varying from over 20 to more than 60 joint works.

Best Publications

  • Synthetic organic spin chemistry for structurally well-defined open-shell graphene fragments

    Yasushi Morita;Shuichi Suzuki;Kazunobu Sato;Takeji Takui

  • Organic tailored batteries materials using stable open-shell molecules with degenerate frontier orbitals

    Yasushi Morita;Shinsuke Nishida;Shinsuke Nishida;Tsuyoshi Murata;Miki Moriguchi

  • A Stable Neutral Hydrocarbon Radical: Synthesis, Crystal Structure, and Physical Properties of 2,5,8-Tri-tert-butyl-phenalenyl

    Kosaburo Goto;Takashi Kubo;Kagetoshi Yamamoto;Kazuhiro Nakasuji

  • Synthesis, intermolecular interaction, and semiconductive behavior of a delocalized singlet biradical hydrocarbon.

    Takashi Kubo;Akihiro Shimizu;Maki Sakamoto;Mikio Uruichi

  • Synthesis and Characterization of Teranthene: A Singlet Biradical Polycyclic Aromatic Hydrocarbon Having Kekulé Structures

    Akihito Konishi;Yasukazu Hirao;Masayoshi Nakano;Akihiro Shimizu

  • Indeno[2,1‐b]fluorene: A 20‐π‐Electron Hydrocarbon with Very Low‐Energy Light Absorption

    Akihiro Shimizu;Ryohei Kishi;Masayoshi Nakano;Daisuke Shiomi

  • Aromaticity on the pancake-bonded dimer of neutral phenalenyl radical as studied by MS and NMR spectroscopies and NICS analysis.

    Shuichi Suzuki;Yasushi Morita;Kozo Fukui;Kazunobu Sato

  • Thermochromism in an organic crystal based on the coexistence of sigma- and pi-dimers.

    Yasushi Morita;Yasushi Morita;Shuichi Suzuki;Kozo Fukui;Shigeaki Nakazawa

  • A New Trend in Phenalenyl Chemistry: A Persistent Neutral Radical, 2,5,8‐Tri‐tert‐butyl‐1,3‐diazaphenalenyl, and the Excited Triplet State of the Gable syn‐Dimer in the Crystal of Column Motif

    Yasushi Morita;Takashi Aoki;Kozo Fukui;Shigeaki Nakazawa

  • Preparation and ESR detection of a ground-state nonet hydrocarbon as a model for one-dimensional organic ferromagnets.

    Yoshio. Teki;Takeji. Takui;Koichi. Itoh;Hiizu. Iwamura

  • Alternating covalent bonding interactions in a one-dimensional chain of a phenalenyl-based singlet biradical molecule having Kekulé structures.

    Akihiro Shimizu;Takashi Kubo;Mikio Uruichi;Kyuya Yakushi

  • The first detection of a Clar's hydrocarbon, 2,6,10-tri-tert-butyltriangulene: a ground-state triplet of non-Kekulé polynuclear benzenoid hydrocarbon.

    Jun Inoue;Kozo Fukui;Takashi Kubo;Shigeaki Nakazawa

  • Mononuclear Copper(II)−Superoxo Complexes that Mimic the Structure and Reactivity of the Active Centers of PHM and DβM

    Atsushi Kunishita;Minoru Kubo;Hideki Sugimoto;Takashi Ogura

  • Singlet Biradical Character of Phenalenyl-Based Kekulé Hydrocarbon with Naphthoquinoid Structure

    Takashi Kubo;Akihiro Shimizu;Mikio Uruichi;Kyuya Yakushi

  • Design, preparation, and electron spin resonance detection of a ground-state undecet (S=5) hydrocarbon

    Ikuo Fujita;Yoshio Teki;Takeji Takui;Takamasa Kinoshita

  • A Synthetic Two‐Spin Quantum Bit: g‐Engineered Exchange‐Coupled Biradical Designed for Controlled‐NOT Gate Operations

    Shigeaki Nakazawa;Shinsuke Nishida;Tomoaki Ise;Tomohiro Yoshino

  • Polycationic High-Spin States of One- and Two-Dimensional (Diarylamino)benzenes, Prototypical Model Units for Purely Organic Ferromagnetic Metals As Studied by Pulsed ESR/Electron Spin Transient Nutation Spectroscopy

    Kazunobu Sato;Masafumi Yano;Mutsuo Furuichi;Daisuke Shiomi

  • Molecular electron-spin quantum computers and quantum information processing: pulse-based electron magnetic resonance spin technology applied to matter spin-qubits

    Kazunobu Sato;Shigeaki Nakazawa;Robabeh Rahimi;Tomoaki Ise

  • Four‐Stage Amphoteric Redox Properties and Biradicaloid Character of Tetra‐tert‐butyldicyclopenta[b;d]thieno[1,2,3‐cd;5,6,7‐c′d′]diphenalene

    Takashi Kubo;Maki Sakamoto;Minako Akabane;Yoshinori Fujiwara

  • Spin transfer and solvato-/thermochromism induced by intramolecular electron transfer in a purely organic open-shell system.

    Shinsuke Nishida;Yasushi Morita;Yasushi Morita;Kozo Fukui;Kazunobu Sato

Frequent Co-Authors

Kazunobu Sato
Kazunobu Sato Osaka Metropolitan University
Daisuke Shiomi
Daisuke Shiomi Osaka Metropolitan University
Yasushi Morita
Yasushi Morita Aichi Institute of Technology
Kazuhiro Nakasuji
Kazuhiro Nakasuji Osaka University
Takashi Kubo
Takashi Kubo Osaka University
Akihiro Shimizu
Akihiro Shimizu Osaka University
Munetaka Oyama
Munetaka Oyama Kyoto University
Masayoshi Nakano
Masayoshi Nakano Osaka University
Kizashi Yamaguchi
Kizashi Yamaguchi Osaka University
Ken Hirotsu
Ken Hirotsu Osaka Metropolitan University

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