World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
65
Citations
19975
World Ranking
7546
National Ranking
2209

George S. Hammond 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 George S. Hammond 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: 335 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

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

George S. Hammond 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 George S. Hammond 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: 65 D-Index — 58th percentile

58% 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

  • 1999 - Oesper Award, University of Cincinnati and American Chemical Society
  • 1994 - US President's National Medal of Science "For his talents as educator, academic administrator and industrial research director, and for creating the field of organic photochemistry, laying the theoretical foundations for research and the development of commercial products from its applications.", Presented by Vice President Gore at Andrew W. Mellon Auditorium, Washington, DC on Monday, December 19, 1994.
  • 1981 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1976 - Priestley Medal, American Chemical Society (ACS)
  • 1974 - George C. Pimentel Award in Chemical Education, American Chemical Society (ACS)
  • 1963 - Member of the National Academy of Sciences
  • 1955 - Fellow of John Simon Guggenheim Memorial Foundation

Overview

George S. Hammond was affiliated with the University of Hawaii at Manoa in the United States. During their career, they contributed to the scientific community primarily through work related to organic photochemistry, a field that explores the interactions between light and organic molecules.

The scientist was recognized with several awards spanning multiple decades. Among these, the US President's National Medal of Science was awarded in 1994, acknowledging their talents as an educator, academic administrator, and industrial research director. This honor also credited Hammond for creating the field of organic photochemistry, laying the theoretical foundations for both academic research and the development of commercial products derived from its applications. The medal was presented by Vice President Gore at the Andrew W. Mellon Auditorium in Washington, DC.

Additional distinctions include the Oesper Award by the University of Cincinnati and the American Chemical Society in 1999, the Priestley Medal from the American Chemical Society in 1976, and the George C. Pimentel Award in Chemical Education from the same organization in 1974. In 1981, they became a Fellow of the American Association for the Advancement of Science (AAAS). Earlier recognition includes membership in the National Academy of Sciences beginning in 1963 and fellowship status awarded by the John Simon Guggenheim Memorial Foundation in 1955.

Throughout their academic and scientific career, George S. Hammond was associated with advancements that influenced both theoretical and practical aspects of photochemistry. Their work bridged educational, administrative, and industrial sectors of the chemical sciences, contributing to the interdisciplinary nature of research and technology transfer in the field.

Best Publications

  • A Correlation of Reaction Rates

    George S. Hammond

  • Mechanisms of Photochemical Reactions in Solution. XXII.1 Photochemical cis-trans Isomerization

    George S. Hammond;Jack. Saltiel;Angelo A. Lamola;Nicholas J. Turro

  • Mechanisms of Photochemical Reactions in Solution. XXXIII. Intersystem Crossing Efficiencies

    Angelo A. Lamola;George S. Hammond

  • Mechaisms of Photochemical Reactions in Solution. XXVIII.1 Values of Triplet Excitation energies of Selected Sensitizers

    William G. Herkstroeter;Angelo A. Lamola;George S. Hammond

  • Chelates of β-Diketones. V. Preparation and Properties of Chelates Containing Sterieally Hindered Ligands

    George S. Hammond;Derek C. Nonhebel;Chin-Hua S. Wu

  • PHOTOCHEMISTRY IN ORGANIZED AND CONFINING MEDIA : A MODEL

    Richard G. Weiss;Richard G. Weiss;V. Ramamurthy;V. Ramamurthy;George S. Hammond;George S. Hammond

  • Mechanisms of Photoreactions in Solutions. I. Reduction of Benzophenone by Benzhydrol

    William M. Moore;George S. Hammond;Robert P. Foss

  • Air Oxidation of Hydrocarbons.1 II. The Stoichiometry and Fate of Inhibitors in Benzene and Chlorobenzene

    Charles E. Boozer;George S. Hammond;Chester E. Hamilton;Jyotirindra N. Sen

  • Mechanisms of Photochemical Reactions in Solution. XXXIX.1 Study of Energy Transfer by Kinetic Spectrophotometry

    William G. Herkstroeter;George S. Hammond

  • Mechanisms of Photochemical Reactions in Solution. XXV. The Photodimerization of Coumarin

    George S. Hammond;Charles A. Stout;Angelo A. Lamola

  • PHOTOSENSITIZED CYCLOADDITION REACTIONS1

    George S. Hammond;Nicholas J. Turro;Alfred Fischer

  • The case of medium-dependent dual mechanisms for photoisomerization: one-bond-flip and hula-twist.

    Robert S. H. Liu;George S. Hammond

  • The Dissociation of Sterically Hindered Acids

    George S. Hammond;Donald H. Hogle

  • Photosensitized Isomerization Involving Saturated Centers

    George S. Hammond;Peter. Wyatt;Charles D. DeBoer;Nicholas J. Turro

  • Asymmetric Induction during Energy Transfer1

    George S. Hammond;Ronald S. Cole

  • Photosensitized internal addition of dienes to olefins

    Robert S. H. Liu;George S. Hammond

  • Thermal and Photosensitized Dimerizations of Cyclohexadiene

    Donald. Valentine;Nicholas J. Turro;George S. Hammond

  • Solar energy storage, production of hydrogen by 546-nm irradiation of a dinuclear rhodium(I) complex in acidic aqueous solution

    Kent R. Mann;Kent R. Mann;Nathan S. Lewis;Vincent M. Miskowski;David K. Erwin

  • Mechanisms of Photoreactions in Solution. II. Reduction of Benzophenone by Toluene and Cumene

    George S. Hammond;William P. Baker;William M. Moore

  • Mechanisms of Photochemical Reactions in Solution. XXXVIII.1 Quenching of the Type II Photoelimination Reaction

    Peter J. Wagner;George S. Hammond

  • Multiplicity of Mechanisms in the Cope Rearrangement

    George S. Hammond;Charles D. DeBoer

  • Mechanism and Structure in Organic Chemistry.

    George S. Hammond

Frequent Co-Authors

Harry B. Gray
Harry B. Gray California Institute of Technology
Richard G. Weiss
Richard G. Weiss Georgetown University
Nicholas J. Turro
Nicholas J. Turro Columbia University
Kent R. Mann
Kent R. Mann University of Minnesota
David S. Kliger
David S. Kliger University of California, Santa Cruz
Gregory L. Geoffroy
Gregory L. Geoffroy Iowa State University
Jay K. Kochi
Jay K. Kochi University of Houston
Donald J. Cram
Donald J. Cram University of California, Los Angeles
David G. Whitten
David G. Whitten University of New Mexico

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