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Ryan G. Hadt

D-Index & Metrics

Chemistry

D-Index
42
Citations
8135
World Ranking
17415
National Ranking
4268

Ryan G. Hadt 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 Ryan G. Hadt 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: 99 publications — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Ryan G. Hadt 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 Ryan G. Hadt 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: 42 D-Index — 3rd percentile

3% of scientists in this discipline score the same or lower.

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

Overview

Ryan G. Hadt is affiliated with the California Institute of Technology in the United States. Their research primarily spans the fields of materials science and chemistry, with a focus on materials chemistry and organic chemistry as key subfields. They have also contributed to studies in electronic, optical, and magnetic materials, biophysics, and renewable energy, sustainability, and the environment.

The scientist's publication record includes numerous papers in several scientific venues. Frequent publication venues include The Cambridge Structural Database, Journal of the American Chemical Society, Inorganic Chemistry, The Journal of Physical Chemistry Letters, and Nature Communications.

Their research topics reflect a strong emphasis on crystallization and solubility studies, X-ray diffraction in crystallography, and magnetism in coordination complexes. Other notable areas include electron spin resonance studies, radical photochemical reactions, catalytic C-H functionalization methods, and CO2 reduction techniques and catalysts.

Frequent coauthors collaborating with Ryan G. Hadt include Brendon J. McNicholas, Nathanael P. Kazmierczak, Alexandra T. Barth, Paul H. Oyala, and Edward I. Solomon.

Among recent publications authored or coauthored by Ryan G. Hadt are:

  • Electrochemical Nozaki-Hiyama-Kishi Coupling: Scope, Applications, and Mechanism, 2021, Journal of the American Chemical Society
  • Elucidating the Mechanism of Excited-State Bond Homolysis in Nickel-Bipyridine Photoredox Catalysts, 2022, Journal of the American Chemical Society
  • Detection of high-valent iron species in alloyed oxidic cobaltates for catalysing the oxygen evolution reaction, 2021, Nature Communications
  • The Impact of Ligand Field Symmetry on Molecular Qubit Coherence, 2021, Journal of the American Chemical Society
  • Mechanistic Investigation of Ni-Catalyzed Reductive Cross-Coupling of Alkenyl and Benzyl Electrophiles, 2023, Journal of the American Chemical Society

Best Publications

  • Copper Active Sites in Biology

    Edward I. Solomon;David E. Heppner;Esther M. Johnston;Jake W. Ginsbach

  • Influence of iron doping on tetravalent nickel content in catalytic oxygen evolving films

    Nancy Li;D. Kwabena Bediako;Ryan G. Hadt;Dugan Hayes

  • Tracking excited-state charge and spin dynamics in iron coordination complexes

    Wenkai Zhang;Roberto Alonso-Mori;Uwe Bergmann;Christian Bressler

  • Spectroscopic Definition of the Copper Active Sites in Mordenite: Selective Methane Oxidation

    Pieter Vanelderen;Pieter Vanelderen;Benjamin E. R. Snyder;Ming-Li Tsai;Ryan G. Hadt

  • Oxygen precursor to the reactive intermediate in methanol synthesis by Cu-ZSM-5

    Pieter J. Smeets;Ryan G. Hadt;Julia S. Woertink;Pieter Vanelderen

  • Cu-ZSM-5: A biomimetic inorganic model for methane oxidation

    Pieter Vanelderen;Ryan G. Hadt;Pieter J. Smeets;Pieter J. Smeets;Edward I. Solomon

  • Electron-transfer processes in metal-free tetraferrocenylporphyrin. Understanding internal interactions to access mixed-valence States potentially useful for quantum cellular automata.

    Victor N. Nemykin;Gregory T. Rohde;Christopher D. Barrett;Ryan G. Hadt

  • Influence of molecular geometry, exchange-correlation functional, and solvent effects in the modeling of vertical excitation energies in phthalocyanines using time-dependent density functional theory (TDDFT) and polarized continuum model TDDFT methods: can modern computational chemistry methods explain experimental controversies?

    Victor N. Nemykin;Ryan G. Hadt;Rodion V. Belosludov;Hiroshi Mizuseki

  • Recent advances in understanding blue copper proteins

    Edward I. Solomon;Ryan G. Hadt

  • [Cu2O]2+ Active Site Formation in Cu–ZSM-5: Geometric and Electronic Structure Requirements for N2O Activation

    Ming-Li Tsai;Ryan G. Hadt;Pieter Vanelderen;Bert F. Sels

  • Trap-Free Halogen Photoelimination from Mononuclear Ni(III) Complexes.

    Seung Jun Hwang;David C. Powers;Andrew G. Maher;Bryce L. Anderson

  • X-ray Spectroscopic Characterization of Co(IV) and Metal–Metal Interactions in Co4O4: Electronic Structure Contributions to the Formation of High-Valent States Relevant to the Oxygen Evolution Reaction

    Ryan G. Hadt;Dugan Hayes;Casey N. Brodsky;Andrew M. Ullman

  • Metalloprotein entatic control of ligand-metal bonds quantified by ultrafast x-ray spectroscopy

    Michael William Mara;Michael William Mara;Ryan G. Hadt;Marco Eli Reinhard;Thomas Kroll

  • Long-range electronic communication in free-base meso-poly(ferrocenyl)-containing porphyrins.

    Victor N. Nemykin;Gregory T. Rohde;Christopher D. Barrett;Ryan G. Hadt

  • Electrochemical Nozaki-Hiyama-Kishi Coupling: Scope, Applications, and Mechanism.

    Yang Gao;David E Hill;Wei Hao;Brendon J McNicholas

  • Electronic and nuclear contributions to time-resolved optical and X-ray absorption spectra of hematite and insights into photoelectrochemical performance

    Dugan Hayes;Ryan G. Hadt;Jonathan D. Emery;Amy A. Cordones

  • Manipulating charge transfer excited state relaxation and spin crossover in iron coordination complexes with ligand substitution

    Wenkai Zhang;Kasper Skov Kjær;Kasper Skov Kjær;Kasper Skov Kjær;Roberto Alonso-Mori;Uwe Bergmann

  • In situ characterization of cofacial Co(IV) centers in Co4O4 cubane: Modeling the high-valent active site in oxygen-evolving catalysts

    Casey N. Brodsky;Ryan G. Hadt;Dugan Hayes;Benjamin J. Reinhart

  • Interpretation of the UV−vis Spectra of the meso(Ferrocenyl)-Containing Porphyrins using a TDDFT Approach: Is Gouterman’s Classic Four-Orbital Model Still in Play?

    Victor N. Nemykin;Ryan G. Hadt

  • Spectroscopy and Redox Chemistry of Copper in Mordenite

    Pieter Vanelderen;Julie Vancauwenbergh;Ming-Li Tsai;Ryan G. Hadt

  • Bilirubin oxidase from Bacillus pumilus: a promising enzyme for the elaboration of efficient cathodes in biofuel cells

    Fabien Durand;Christian Hauge Kjaergaard;Emmanuel Suraniti;Sébastien Gounel

Frequent Co-Authors

Lin X. Chen
Lin X. Chen Northwestern University
Robert A. Schoonheydt
Robert A. Schoonheydt KU Leuven
Victor N. Nemykin
Victor N. Nemykin University of Tennessee at Knoxville
Bert F. Sels
Bert F. Sels KU Leuven
Keith O. Hodgson
Keith O. Hodgson Stanford University
Daniel G. Nocera
Daniel G. Nocera Harvard University
Dimosthenis Sokaras
Dimosthenis Sokaras SLAC National Accelerator Laboratory
Britt Hedman
Britt Hedman SLAC National Accelerator Laboratory
Edward I. Solomon
Edward I. Solomon Stanford University
Kelly J. Gaffney
Kelly J. Gaffney SLAC National Accelerator Laboratory

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Best Scientists Citing Ryan G. Hadt

Jeroen A. van Bokhoven

Jeroen A. van Bokhoven

ETH Zurich

Publications: 74

Victor N. Nemykin

Victor N. Nemykin

University of Tennessee at Knoxville

Publications: 62

Heinrich Lang

Heinrich Lang

Chemnitz University of Technology

Publications: 32

Silvia Bordiga

Silvia Bordiga

University of Turin

Publications: 27

Nicolas Mano

Nicolas Mano

Centre national de la recherche scientifique, CNRS

Publications: 25

Kazunari Yoshizawa

Kazunari Yoshizawa

Kyushu University

Publications: 24

William B. Tolman

William B. Tolman

Washington University in St. Louis

Publications: 24

Kelly J. Gaffney

Kelly J. Gaffney

SLAC National Accelerator Laboratory

Publications: 24

Dimosthenis Sokaras

Dimosthenis Sokaras

SLAC National Accelerator Laboratory

Publications: 23

Lin X. Chen

Lin X. Chen

Northwestern University

Publications: 23

Carlo Lamberti

Carlo Lamberti

University of Turin

Publications: 22

Wonwoo Nam

Wonwoo Nam

Ewha Womans University

Publications: 21

Kenneth D. Karlin

Kenneth D. Karlin

Johns Hopkins University

Publications: 21

Majed Chergui

Majed Chergui

École Polytechnique Fédérale de Lausanne

Publications: 20

Yi Lu

Yi Lu

University of Illinois at Urbana-Champaign

Publications: 19

Maxime A. Siegler

Maxime A. Siegler

Johns Hopkins University

Publications: 19

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