World's Best Scientists 2026 revealed!
William A. Chupka

William A. Chupka

D-Index & Metrics

Chemistry

D-Index
63
Citations
11180
World Ranking
8631
National Ranking
2468

William A. Chupka 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 William A. Chupka 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: 166 publications — 20th percentile

20% of scientists in this discipline score the same or lower.

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

William A. Chupka 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 William A. Chupka 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: 63 D-Index — 54th percentile

54% 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

  • 1961 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1957 - Fellow of American Physical Society (APS)

Overview

William A. Chupka was affiliated with Yale University in the United States during their academic career. The scientist's record includes recognition from notable professional bodies within the scientific community.

In 1957, they were named a Fellow of the American Physical Society (APS), an acknowledgment awarded to members who have made significant contributions to the field of physics.

Further recognition came in 1961 when they were made a Fellow of the John Simon Guggenheim Memorial Foundation, an institution that supports individuals who have demonstrated exceptional capacity for productive scholarship.

The available data does not include specific details on their research topics, publications, or fields of study. Similarly, no information is recorded regarding frequent co-authors or publication venues. There are also no documented published papers or book publications attributed to them in the provided data.

The scientist has since been reported deceased, and all references to their work and career are therefore presented in past tense.

Best Publications

  • Factors affecting lifetimes and resolution of Rydberg states observed in zero-electron-kinetic-energy spectroscopy

    William A. Chupka

  • Effect of Unimolecular Decay Kinetics on the Interpretation of Appearance Potentials

    William A. Chupka

  • Very high resolution study of photoabsoprtion, photoionization, and predissociation in H2

    Patricia M. Dehmer;W. A. Chupka

  • Photoionization Study of Ion–Molecule Reactions in Mixtures of Hydrogen and Rare Gases

    Unknown

  • Direct Determination of the Heat of Sublimation of Carbon with the Mass Spectrometer

    William A. Chupka;Mark G. Inghram

  • Mass Spectrometric Study of the Kinetics of Nitrogen Afterglow

    Joseph Berkowitz;William A. Chupka;G. B. Kistiakowsky

  • Photoionization of Ethane, Propane, and n‐Butane with Mass Analysis

    William A. Chupka;Joseph Berkowitz

  • THERMODYNAMIC STUDIES OF SOME GASEOUS METALLIC CARBIDES

    William A. Chupka;Joseph Berkowitz;Clayton F. Giese;Mark G. Inghram

  • Electronically excited states of ethylene

    Kenneth B. Wiberg;Christopher M. Hadad;James B. Foresman;William A. Chupka

  • Photoionization of the Lower Aliphatic Alcohols with Mass Analysis

    Kamel M. A. Refaey;William A. Chupka

  • Mass‐Spectrometric Study of the Photoionization of Methane

    William A. Chupka

  • Photoionization mass spectrometric study of formaldehyde H2CO, HDCO and D2CO

    Paul Marie Guyon;William A. Chupka;Joseph Berkowitz

  • Polymeric Gaseous Molecules in the Vaporization of Alkali Halides

    Joseph Berkowitz;William A. Chupka

  • High resolution study of photoionization processes in O2

    Unknown

  • Photoionization of HCN: The Electron Affinity and Heat of Formation of CN

    Unknown

  • Ion‐Molecule and Chemi‐ionization Reactions in H2 by Photoionization

    Unknown

  • Lifetimes of very high Rydberg states of aromatic molecules

    William A. Chupka

  • Mass Spectrometric Study of Vapor Ejected from Graphite and Other Solids by Focused Laser Beams

    Unknown

  • Electron Affinities of Halogen Diatomic Molecules as Determined by Endoergic Charge Transfer

    Unknown

  • Threshold Photoelectron Detector for Use in the Vacuum Ultraviolet

    R. Spohr;P. M. Guyon;W. A. Chupka;J. Berkowitz

  • Flash pyrolytic production of rotationally cold free radicals in a supersonic jet. Resonant multiphoton spectrum of the 3p2A2" .rarw. X2A2" origin band of methyl

    Peter Chen;Steven D. Colson;William A. Chupka;Jerome A. Berson

  • Photoionization of molecular Rydberg states: H2, C 1Πu and its doubly excited states

    William A. Chupka

  • On the Dissociation Energies of SrO and MgO Molecules

    Richard F. Porter;William A. Chupka;Mark G. Inghram

  • High‐Resolution Photoionization Study of the H2 Molecule near Threshold

    Unknown

  • Vaporization of Beryllium Oxide and Its Reaction with Tungsten

    William A. Chupka;Joseph Berkowitz;Clayton F. Giese

  • Photoionization of CH3; Heat of Formation of CH2

    W. A. Chupka;Chava Lifshitz

  • Photoionization Mass Spectrometric Study of F2, HF, and DF

    J. Berkowitz;W. A. Chupka;P. M. Guyon;J. H. Holloway

Frequent Co-Authors

Steven D. Colson
Steven D. Colson Yale University
Peter Chen
Peter Chen ETH Zurich
Michael G. White
Michael G. White Stony Brook University
Lester Andrews
Lester Andrews University of Virginia
Christopher M. Hadad
Christopher M. Hadad The Ohio State University
Phaedon Avouris
Phaedon Avouris IBM (United States)
John H. D. Eland
John H. D. Eland University of Oxford
John L. Margrave
John L. Margrave Rice University
Robert H. Crabtree
Robert H. Crabtree Yale University
Mark A. Johnson
Mark A. Johnson Yale University

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