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Stephen P. Cramer

D-Index & Metrics

Chemistry

D-Index
80
Citations
16610
World Ranking
3522
National Ranking
1145

Stephen P. Cramer 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 Stephen P. Cramer 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: 300 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Stephen P. Cramer 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 Stephen P. Cramer 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: 80 D-Index — 81st percentile

81% of scientists in this discipline score the same or lower.

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

Overview

Stephen P. Cramer is affiliated with the Search for Extraterrestrial Intelligence in the United States. Their research centers on the study of metalloenzymes and iron-sulfur proteins, with significant contributions to the fields of energy, physics and astronomy, and materials science.

Their work spans various subfields, including renewable energy, sustainability and the environment, inorganic chemistry, materials chemistry, radiation, and electrical and electronic engineering. The principal research topics covered include:

  • Metalloenzymes and iron-sulfur proteins
  • Electrocatalysts for energy conversion
  • Metal-catalyzed oxygenation mechanisms
  • Ammonia synthesis and nitrogen reduction
  • Crystallography and radiation phenomena
  • Advanced X-ray imaging techniques
  • X-ray spectroscopy and fluorescence analysis

The scientist has published extensively in several frequent venues, notably:

  • Chemical Science
  • Angewandte Chemie International Edition
  • Angewandte Chemie
  • Biophysical Journal
  • Crystals

Among recent papers authored or coauthored, there are the following notable works:

  • "Caught in the Hinact: Crystal Structure and Spectroscopy Reveal a Sulfur Bound to the Active Site of an O2-stable State of [FeFe] Hydrogenase" (2020), published in Angewandte Chemie International Edition
  • "Hydroxy-bridged resting states of a [NiFe]-hydrogenase unraveled by cryogenic vibrational spectroscopy and DFT computations" (2020), published in Chemical Science
  • "The large subunit of the regulatory [NiFe]-hydrogenase from Ralstonia eutropha- a minimal hydrogenase?" (2020), published in Chemical Science
  • "Exploring Structure and Function of Redox Intermediates in [NiFe]-Hydrogenases by an Advanced Experimental Approach for Solvated, Lyophilized and Crystallized Metalloenzymes" (2021), published in Angewandte Chemie International Edition
  • "Vibrational characterization of a diiron bridging hydride complex - a model for hydrogen catalysis" (2020), published in Chemical Science

Stephen P. Cramer has also contributed to book publications, including the title X-Ray Spectroscopy with Synchrotron Radiation (2020), published by Biological and medical physics, biomedical engineering.

The scientist frequently collaborates with coauthors such as:

  • Yoshitaka Yoda
  • Hongxin Wang
  • Vladimir Pelmenschikov
  • Kenji Tamasaku
  • Christian Lorent

Best Publications

  • Absence of Mn-Centered Oxidation in the S2 → S3 Transition: Implications for the Mechanism of Photosynthetic Water Oxidation

    Johannes Messinger;John H. Robblee;Uwe Bergmann;Carmen Fernandez

  • A 13-element Ge detector for fluorescence EXAFS

    S.P. Cramer;O. Tench;M. Yocum;G.N. George

  • The molybdenum site of nitrogenase. Preliminary structural evidence from x-ray absorption spectroscopy

    Stephen P. Cramer;Keith O. Hodgson;William O. Gillum;Leonard E. Mortenson

  • Ligand Field Strengths and Oxidation States from Manganese L-Edge Spectroscopy

    S. P. Cramer;Y. Ma;C. T. Chen;F. Sette

  • X‐Ray Absorption Spectroscopy: A New Structural Method and Its Applications to Bioinorganic Chemistry

    Stephen P. Cramer;Keith O. Hodgson

  • Determination of the Nitrogen Chemical Structures in Petroleum Asphaltenes Using XANES Spectroscopy

    Sudipa Mitra-Kirtley;Oliver C. Mullins;Jan Van Elp;Simon J. George

  • The manganese site of the photosynthetic water-splitting enzyme

    Graham N. George;Roger C. Prince;Stephen P. Cramer

  • Molybdenum sites of sulfite oxidase and xanthine dehydrogenase. A comparison by EXAFS

    S. P. Cramer;R. Wahl;K. V. Rajagopalan

  • The molybdenum site of nitrogenase. 2. A comparative study of molybdenum-iron proteins and the iron-molybdenum cofactor by x-ray absorption spectroscopy

    Stephen P. Cramer;William O. Gillum;Keith O. Hodgson;Leonard E. Mortenson

  • Identification and characterization of zinc binding sites in protein kinase C.

    Stevan R. Hubbard;W. Robert Bishop;Paul Kirschmeier;Simon J. George

  • Chemical dependence of interatomic X-ray transition energies and intensities – a study of Mn Kβ″ and Kβ2, 5 spectra

    U. Bergmann;C.R. Horne;T.J. Collins;J.M. Workman

  • The Electronic Structure of Mn in Oxides, Coordination Complexes, and the Oxygen-Evolving Complex of Photosystem II Studied by Resonant Inelastic X-ray Scattering

    Pieter Glatzel;Uwe Bergmann;Junko Yano;Hendrik Visser

  • High-Yield Expression of Heterologous [FeFe] Hydrogenases in Escherichia coli

    Jon M. Kuchenreuther;Celestine S. Grady-Smith;Celestine S. Grady-Smith;Alyssa S. Bingham;Simon J. George;Simon J. George

  • A systematic x-ray absorption study of molybdenum complexes. The accuracy of structural information from extended x-ray absorption fine structure

    Stephen P. Cramer;Keith O. Hodgson;Edward I. Stiefel;William E. Newton

  • Copper L-edge spectral studies. A direct experimental probe of the ground-state covalency in the blue copper site in plastocyanin

    Simon J. George;Michael D. Lowery;Edward I. Solomon;Stephen P. Cramer

  • Bulk-sensitive XAS characterization of light elements: from X-ray Raman scattering to X-ray Raman spectroscopy

    Uwe Bergmann;Uwe Bergmann;Pieter Glatzel;Stephen P. Cramer;Stephen P. Cramer

  • X-ray magnetic circular dichroism—a high energy probe of magnetic properties

    Tobias Funk;Aniruddha Deb;Simon J. George;Hongxin Wang

  • [FeFe]-hydrogenase maturation: HydG-catalyzed synthesis of carbon monoxide.

    Eric M. Shepard;Benjamin R. Duffus;Simon J. George;Shawn E. McGlynn

  • Direct Observation of an Iron-Bound Terminal Hydride in [FeFe]-Hydrogenase by Nuclear Resonance Vibrational Spectroscopy

    Edward J. Reijerse;Cindy C. Pham;Vladimir Pelmenschikov;Ryan Gilbert-Wilson

  • Structure of the active site of sulfite oxidase. X-ray absorption spectroscopy of the Mo(IV), Mo(V), and Mo(VI) oxidation states.

    Graham N. George;Cary A. Kipke;Roger C. Prince;Roger A. Sunde

  • Studies of the ferric forms of cytochrome P-450 and chloroperoxidase by extended x-ray absotption fine structure. Characterization of the iron-nitrogen and iron-sulfur distances

    Stephen P. Cramer;John H. Dawson;Keith O. Hodgson;Lowell P. Hager

Frequent Co-Authors

Simon J. George
Simon J. George University of California, Davis
Uwe Bergmann
Uwe Bergmann SLAC National Accelerator Laboratory
Graham N. George
Graham N. George University of Saskatchewan
Pieter Glatzel
Pieter Glatzel European Synchrotron Radiation Facility
Michael W. W. Adams
Michael W. W. Adams University of Georgia
Elton J. Cairns
Elton J. Cairns University of California, Berkeley
Keith O. Hodgson
Keith O. Hodgson Stanford University
Thomas B. Rauchfuss
Thomas B. Rauchfuss University of Illinois at Urbana-Champaign
Robert A. Scott
Robert A. Scott University of Cambridge
Oliver C. Mullins
Oliver C. Mullins Schlumberger (United States)

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Best Scientists Citing Stephen P. Cramer

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Max Planck Society

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SLAC National Accelerator Laboratory

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