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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 53 13213 11892 1002 913 327 8698

Takayuki Ishida publications per year

The chart shows the history of publications by Takayuki Ishida between 1988 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Takayuki Ishida published across 38 years, from 1988 to 2025, averaging 10.9 papers a year. Output peaked at 33 publications in 2022. 22 of the 413 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1988 to 2025. Vertical axis: number of publications, 0 to 33. Peak 33 publications in 2022. 1988: 2 publications 1989: 0 publications 1990: 0 publications 1991: 3 publications 1992: 4 publications 1993: 12 publications 1994: 10 publications 1995: 11 publications 1996: 15 publications 1997: 18 publications 1998: 9 publications 1999: 12 publications 2000: 11 publications 2001: 11 publications 2002: 12 publications 2003: 16 publications 2004: 10 publications 2005: 10 publications 2006: 14 publications 2007: 11 publications 2008: 10 publications 2009: 12 publications 2010: 7 publications 2011: 13 publications 2012: 9 publications 2013: 18 publications 2014: 12 publications 2015: 15 publications 2016: 12 publications 2017: 13 publications 2018: 9 publications 2019: 9 publications 2020: 9 publications 2021: 3 publications 2022: 33 publications 2023: 16 publications 2024: 8 publications 2025: 14 publications
1988 2025

413 publications in total across all disciplines

View publications per year as a table
Takayuki Ishida: publications per year, 1988 to 2025
Year Publications
1988 2
1989 0
1990 0
1991 3
1992 4
1993 12
1994 10
1995 11
1996 15
1997 18
1998 9
1999 12
2000 11
2001 11
2002 12
2003 16
2004 10
2005 10
2006 14
2007 11
2008 10
2009 12
2010 7
2011 13
2012 9
2013 18
2014 12
2015 15
2016 12
2017 13
2018 9
2019 9
2020 9
2021 3
2022 33
2023 16
2024 8
2025 14
Total 413
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Takayuki Ishida 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 Takayuki Ishida sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 321–340 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 327 publications — 69th percentile

69% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643 327
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Takayuki Ishida 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 Takayuki Ishida sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 52–53 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 53 D-Index — 28th percentile

28% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872 53
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Takayuki Ishida is affiliated with the University of Electro-Communications in Japan. Their research primarily focuses on the field of Materials Science, with significant work in subfields including Materials Chemistry, Electronic, Optical and Magnetic Materials, Biophysics, Organic Chemistry, and Inorganic Chemistry.

The scientist's research covers a range of topics related to the study of materials on a molecular and atomic scale. Key areas of investigation include crystallization and solubility studies, X-ray diffraction in crystallography, magnetism in coordination complexes, lanthanide and transition metal complexes, electron spin resonance studies, metal complexes synthesis and properties, and advanced nuclear magnetic resonance (NMR) techniques and applications.

Takayuki Ishida has contributed to various scientific publications. Recent papers authored or coauthored by them include:

  • SMM behaviour of heterometallic dinuclear CuIILnIII (Ln = Tb and Dy) complexes derived from N2O3 donor unsymmetrical ligands, 2020, New Journal of Chemistry
  • Modulating the ground state, stability and charge transport in OFETs of biradicaloid hexahydro-diindenopyrene derivatives and a proposed method to estimate the biradical character, 2020, Chemical Science
  • Structures and Magnetic Properties of Carbonato-Bridged Hexanuclear NiII4LnIII2 (Ln = Gd, Tb, Dy) Complexes Formed by Atmospheric Carbon Dioxide Fixation in the Absence of an External Base, 2022, Crystal Growth & Design
  • Molecular S = 2 High-Spin, S = 0 Low-Spin and S = 0 ⇄ 2 Spin-Transition/-Crossover Nickel(II)-Bis(nitroxide) Coordination Compounds, 2021, Inorganics
  • Strong Antiferromagnetic Interaction in a Gadolinium(III) Complex with Methoxy-TEMPO Radical: A Relation between the Coupling and the Gd-O-N Angle, 2020, Inorganic Chemistry

Several frequent co-authors have collaborated with Takayuki Ishida multiple times. These include:

  • Rina Takano
  • Tyson N. Dais
  • Paul G. Plieger
  • Yasutaka Kitagawa
  • Yoshiki Yamaguchi

The scientist has published regularly in a variety of venues, with notable frequency in:

  • The Cambridge Structural Database
  • Inorganic Chemistry
  • Molecules
  • Bulletin of the Chemical Society of Japan
  • Advanced Science

Best Publications

  • Oximate-Bridged Trinuclear Dy−Cu−Dy Complex Behaving as a Single-Molecule Magnet and Its Mechanistic Investigation

    Fumihito Mori;Tetsuya Nyui;Takayuki Ishida;Takashi Nogami

  • Giant Coercivity in a One-Dimensional Cobalt-Radical Coordination Magnet

    Norio Ishii;Yoshitomo Okamura;Susumu Chiba;Takashi Nogami

  • Bis[3-tert-butyl-5-(N-oxy-tert-butylamino)phenyl] nitroxide in a quartet ground state: a prototype for persistent high-spin poly[(oxyimino)-1,3-phenylenes]

    Takayuki Ishida;Hiizu Iwamura

  • Isolation and characterization of Diels–Alder adducts of C60 with anthracene and cyclopentadiene

    Minoru Tsuda;Takayuki Ishida;Takashi Nogami;Sadamu Kurono

  • Magnetic-field induced gap and staggered susceptibility in the S = 1/2 chain [PM?Cu(NO3)2?(H2O)2]n (PM = pyrimidine)

    R Feyerherm;S Abens;D Günther;T Ishida

  • Syntheses, Structures, and Magnetic Properties of Acetato- and Diphenolato-Bridged 3d–4f Binuclear Complexes [M(3-MeOsaltn)(MeOH)x(ac)Ln(hfac)2] (M = ZnII, CuII, NiII, CoII; Ln = LaIII, GdIII, TbIII, DyIII; 3-MeOsaltn = N,N′-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; ac = Acetato; hfac = Hexafluoroacetylacetonato; x = 0 or 1)

    Masaaki Towatari;Koshiro Nishi;Takeshi Fujinami;Naohide Matsumoto

  • Antiferromagnetic coupling of transition metal spins across pyrimidine and pyrazine bridges in dinuclear manganese(II), cobalt(II), nickel(II) and copper(II) 1,1,1,5,5,5-hexafluoropentane-2,4-dionate complexes

    Takayuki Ishida;Takashi Kawakami;Shin-ichi Mitsubori;Takashi Nogami

  • Proposed Mechanism of Ferromagnetic Interaction of Organic Ferromagnets : 4-(Arylmethyleneamino)-2,2,6,6-tetramethylpiperidin-1-oxyls and Related Compounds

    Takashi Nogami;Takayuki Ishida;Masanori Yasui;Fujiko Iwasaki

  • Carbonato-bridged Ni(II)2Ln(III)2 (Ln(III) = Gd(III), Tb(III), Dy(III)) complexes generated by atmospheric CO2 fixation and their single-molecule-magnet behavior: [(μ4-CO3)2{Ni(II)(3-MeOsaltn)(MeOH or H2O)Ln(III)(NO3)}2]·solvent [3-MeOsaltn = N,N'-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato].

    Soichiro Sakamoto;Takeshi Fujinami;Koshiro Nishi;Naohide Matsumoto

  • Synthesis, Structure, Luminescent, and Magnetic Properties of Carbonato-Bridged ZnII2LnIII2 Complexes [(μ4-CO3)2{ZnIILnLnIII(NO3)}2] (LnIII = GdIII, TbIII, DyIII; L1 = N,N′-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, L2 = N,N′-Bis(3-ethoxy-2-oxybenzylidene)-1,3-propanediaminato)

    Kiyomi Ehama;Yusuke Ohmichi;Soichiro Sakamoto;Takeshi Fujinami

  • Strong ferromagnetic exchange couplings in copper(II) and nickel(II) complexes with a paramagnetic tridentate chelate ligand, 2,2'-bipyridin-6-yl tert-butyl nitroxide.

    Keita Osanai;Atsushi Okazawa;Takashi Nogami;Takayuki Ishida

  • Linker stoichiometry-controlled stepwise supramolecular growth of a flexible Cu2Tb single molecule magnet from monomer to dimer to one-dimensional Chain

    Soumavo Ghosh;Yumi Ida;Takayuki Ishida;Ashutosh Ghosh

  • Organic Radicals Exhibiting Intermolecular Ferromagnetic Interactions with High Probability: 4-Arylmethyleneamino-2,2,6,6-tetramethylpiperidin-1-yloxyls and Related Compounds

    Kensuke Togashi;Ron Imachi;Katsuyuki Tomioka;Hidenori Tsuboi

  • A New Organic Ferromagnet: 4-Benzylideneamino-2,2,6,6-tetramethylpiperidin-1-oxyl

    Takashi Nogami;Katsuyuki Tomioka;Takayuki Ishida;Hajime Yoshikawa

  • Exchange coupling in TbCu and DyCu single-molecule magnets and related lanthanide and vanadium analogs

    Takayuki Ishida;Ryo Watanabe;Kei Fujiwara;Atsushi Okazawa

  • Syntheses and magnetic properties of poly(phenylacetylenes) carrying a (1-oxido-3-oxy-4,4,5,5-tetramethyl-2-imidazolin-2-yl) group at the meta or para position of the phenyl ring

    Akiteru Fujii;Takayuki Ishida;Noboru Koga;Hiizu Iwamura

  • Intramolecular magnetic coupling between two nitrene or two nitroxide units through 1,1-diphenylethylene chromophores. Isomeric dinitrenes and dinitroxides related in connectivity to trimethylenemethane, tetramethyleneethane, and pentamethylenepropane

    Takuya Matsumoto;Takayuki Ishida;Noboru Koga;Hiizu Iwamura

  • Synthesis of 3,3-disubstituted oxindoles through Pd-catalyzed intramolecular cyanoamidation

    Yoshizumi Yasui;Haruhi Kamisaki;Takayuki Ishida;Yoshiji Takemoto

  • Ferromagnetic exchange coupling of vanadium(IV) dpi spins across pyrimidine rings: dinuclear complexes of oxovanadium(IV) bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionate) bridged by pyrimidine derivatives.

    Takayuki Ishida;Shin-Ichi Mitsubori;Takashi Nogami;Naoya Takeda

  • Ferro- and antiferromagnetic coupling switch accompanied by twist deformation around the copper(II) and nitroxide coordination bond.

    Atsushi Okazawa;Daisuke Hashizume;Takayuki Ishida

  • A Unique Example of Structural Diversity Tuned by Apparently Innocent o-, m-, and p-Nitro Substituents of Benzoate in Their Complexes of Mn(II) with 4,4′-Bipyridine: 1D Ladder, 2D Sheet, and 3D Framework

    Paramita Kar;Rituparna Biswas;Yumi Ida;Takayuki Ishida

Frequent Co-Authors

Hiroyuki Nojiri
Hiroyuki Nojiri Tohoku University
Hiizu Iwamura
Hiizu Iwamura Nihon University
Ashutosh Ghosh
Ashutosh Ghosh University of Calcutta
Naohide Matsumoto
Naohide Matsumoto Kumamoto University
Nazzareno Re
Nazzareno Re University of Chieti-Pescara
Kizashi Yamaguchi
Kizashi Yamaguchi Osaka University
Akiko Kobayashi
Akiko Kobayashi Nihon University
Michael G. B. Drew
Michael G. B. Drew University of Reading
Yoshichika Otani
Yoshichika Otani University of Tokyo

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