World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
69
Citations
17325
World Ranking
6181
National Ranking
1883

Nelson J. Leonard 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 Nelson J. Leonard 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.

Nelson J. Leonard 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 Nelson J. Leonard 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: 69 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1967 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1960 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1959 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1955 - Member of the National Academy of Sciences

Overview

Nelson J. Leonard was affiliated with the University of Illinois at Urbana-Champaign in the United States. Their research spanned multiple disciplines within the humanities and social sciences, particularly focusing on diverse cultural and historical studies, cultural identity and heritage, as well as historical studies and socio-cultural analysis.

The main fields of study associated with Leonard's work included Arts and Humanities and Social Sciences. These fields broke down into subfields such as Cultural Studies, Archeology, and History and Philosophy of Science.

Leonard's publication record featured works in academic journals, with a notable paper titled Analyse Semiotique des Photographies des Populations Voltaiques des Premiers Temps Missionnaires Exposees au Musee Monseigneur Thevenoud de Ouagadougou, published in 2023 in the International Journal of Humanities Social Sciences and Education.

Their frequent publication venue reflected this, showing a concentration in the International Journal of Humanities Social Sciences and Education. Leonard did not have frequent co-authors listed, indicating a largely independent research profile.

Throughout their career, Leonard was recognized by several prestigious institutions. They were awarded the status of Fellow by the John Simon Guggenheim Memorial Foundation twice, in 1959 and 1967. Additionally, Leonard was made a Fellow of the American Association for the Advancement of Science (AAAS) in 1960 and became a Member of the National Academy of Sciences in 1955.

  • Diverse Cultural and Historical Studies
  • Cultural Identity and Heritage
  • Historical Studies and Socio-cultural Analysis

  • Arts and Humanities
  • Social Sciences

  • Cultural Studies
  • Archeology
  • History and Philosophy of Science

  • International Journal of Humanities Social Sciences and Education

  • Analyse Semiotique des Photographies des Populations Voltaiques des Premiers Temps Missionnaires Exposees au Musee Monseigneur Thevenoud de Ouagadougou (2023, International Journal of Humanities Social Sciences and Education)

  • Fellow of John Simon Guggenheim Memorial Foundation (1959)
  • Fellow of the American Association for the Advancement of Science (AAAS) (1960)
  • Member of the National Academy of Sciences (1955)
  • Fellow of John Simon Guggenheim Memorial Foundation (1967)

Best Publications

  • Fluorescent modification of adenosine-containing coenzymes. Biological activities and spectroscopic properties.

    John A. Secrist;Jorge R. Barrio;Nelson J. Leonard;Gregorio Weber

  • Synthetic spectroscopic models related to coenzymes and base pairs. V. Emission properties of NADH. Studies of fluorescence lifetimes and quantum efficiencies of NADH, AcPyADH, [reduced acetylpyridineadenine dinucleotide] and simplified synthetic models

    T. Gordon Scott;Richard D. Spencer;Nelson J. Leonard;Gregorio Weber

  • Periodate Oxidation of Sulfides to Sulfoxides. Scope of the Reaction

    Nelson J. Leonard;Carl R. Johnson

  • Fluorescent adenosine and cytidine derivatives.

    Jorge R. Barrio;John A. Secrist;Nelson J. Leonard

  • Synthetic spectroscopic models related to coenzymes and base pairs. II. Evidence for intramolecular base-base interactions in dinucleotide analogs

    Douglas T. Browne;Joseph Eisinger;Nelson J. Leonard

  • Cytokinins: Structure/activity relationships☆

    Folke Skoog;Hamzi Q. Hamzi;Alicja M. Szweykowska;Nelson J. Leonard

  • Etheno-Substituted Nucleotides and Coenzymes: Fluorescence and Biological Activity

    Nelson J. Leonard;Jorge R. Barrio

  • A fluorescent modification of adenosine triphosphate with activity in enzyme systems: 1,N 6 -ethenoadenosine triphosphate.

    John A. Secrist;Jorge R. Barrio;Nelson J. Leonard

  • Direct Synthesis of Ternary Iminium Salts by Combination of Aldehydes or Ketones with Secondary Amine Salts1,2

    Nelson J. Leonard;Joseph V. Paukstelis

  • Unsaturated Amines. III. Introduction of α,β-Unsaturation by Means of Mercuric Acetate: Δ1(10)-Dehydroquinolizidine1,2

    Nelson J. Leonard;Allan S. Hay;Richard W. Fulmer;Virgil W. Gash

  • Unsaturated Amines. X. The Mercuric Acetate Route to Substituted Piperidines, Δ2-Tetrahydropyridines and Δ2-Tetrahydroanabasines

    Nelson J. Leonard;Fred P. Hauck

  • 1,N2-Ethenoguanine and N2,3-ethenoguanine. Synthesis and comparison of the electronic spectral properties of these linear and angular triheterocycles related to the Y bases

    Prem D. Sattsangi;Nelson J. Leonard;Charles R. Frihart

  • A fluorescent analog of nicotinamide adenine dinucleotide.

    Jorge R. Barrio;John A. Secrist;Nelson J. Leonard

  • Cytokinin from soluble RNA of Escherichia coli: 6-(3-methyl-2-butenylamino) -2-methylthio-9-β-D-ribofuranosylpurine

    W. J. Burrows;D. J. Armstrong;F. Skoog;S. M. Hecht

  • SYNTHESIS AND STRUCTURE OF TRI-S-TRIAZINE

    Ramachandra S. Hosmane;Mitchell A. Rossman;Nelson J. Leonard

  • The Influence of Steric Configuration on the Ultraviolet Absorption of 1,2-Diketones

    Nelson J. Leonard;Paul M. Mader

  • 5-Amino-5-deoxyribose derivatives. Synthesis and use in the preparation of “Reversed” Nucleosides

    Nelson J. Leonard;Kermit L. Carraway

  • Cytokinins: synthesis and biological activity of geometric and position isomers of zeatin.

    Ruth Y. Schmitz;Folke Skoog;Anthony J. Playtis;Nelson J. Leonard

  • Unsaturated Amines. II. Determination of the Proximity of Nitrogen to a Double Bond by Ultraviolet Absorption Spectra1

    Nelson J. Leonard;David M. Locke

  • Studies of tautomers and protonation of adenine and its derivatives by nitrogen-15 nuclear magnetic resonance spectroscopy

    Nina C. Gonnella;Hiroshi Nakanishi;Joseph B. Holtwick;David S. Horowitz

Frequent Co-Authors

Folke Skoog
Folke Skoog University of Wisconsin–Madison
Jorge R. Barrio
Jorge R. Barrio University of California, Los Angeles
Sidney M. Hecht
Sidney M. Hecht Arizona State University
Scott R. Wilson
Scott R. Wilson University of Illinois at Urbana-Champaign
Gregorio Weber
Gregorio Weber University of Illinois at Urbana-Champaign
John D. Roberts
John D. Roberts Yale University
David F. Wiemer
David F. Wiemer University of Iowa
Kermit L. Carraway
Kermit L. Carraway University of California, Davis
Deepak Bhatnagar
Deepak Bhatnagar Agricultural Research Service

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Pursuing a degree in Chemistry in the USA opens doors to diverse career pathways, including specialized roles in forensic science. For those interested in the intersection of science and criminal investigation, exploring careers in forensic science can be highly rewarding. These careers often require a strong foundation in chemical principles combined with analytical skills.

Many students opt for flexible learning options by enrolling in the best online colleges for forensic science, which offer affordable programs designed to equip learners with practical knowledge in crime lab techniques and evidence analysis. In addition to undergraduate studies, advancing to an online masters forensic psychology program can complement a chemistry background by deepening insights into human behavior and forensic profiling.

For those curious about job opportunities and compensation, understanding the autopsy tech salary can provide perspective on the financial aspects of working in forensic pathology and related fields. This role applies chemical and biological expertise during post-mortem examinations, highlighting practical applications of chemistry in forensic settings.

Overall, the synergy between chemistry and forensic science fosters versatile career options. Resources detailing careers in forensic science offer comprehensive guidance on educational requirements, job outlook, and specialization areas, helping students make informed decisions about their futures.

Best Scientists Citing Nelson J. Leonard

Recently Published Articles