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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 51 14093 12688 785 698 184 8226

Peter O'Brien publications per year

The chart shows the history of publications by Peter O'Brien between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Peter O'Brien published across 31 years, from 1995 to 2025, averaging 6.9 papers a year. Output peaked at 24 publications in 2025. 24 of the 213 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 2025. 1995: 6 publications 1996: 13 publications 1997: 9 publications 1998: 9 publications 1999: 9 publications 2000: 6 publications 2001: 7 publications 2002: 7 publications 2003: 6 publications 2004: 9 publications 2005: 6 publications 2006: 8 publications 2007: 6 publications 2008: 11 publications 2009: 7 publications 2010: 8 publications 2011: 5 publications 2012: 2 publications 2013: 7 publications 2014: 3 publications 2015: 7 publications 2016: 8 publications 2017: 2 publications 2018: 4 publications 2019: 2 publications 2020: 8 publications 2021: 5 publications 2022: 4 publications 2023: 5 publications 2024: 0 publications 2025: 24 publications
1995 2025

213 publications in total across all disciplines

View publications per year as a table
Peter O'Brien: publications per year, 1995 to 2025
Year Publications
1995 6
1996 13
1997 9
1998 9
1999 9
2000 6
2001 7
2002 7
2003 6
2004 9
2005 6
2006 8
2007 6
2008 11
2009 7
2010 8
2011 5
2012 2
2013 7
2014 3
2015 7
2016 8
2017 2
2018 4
2019 2
2020 8
2021 5
2022 4
2023 5
2024 0
2025 24
Total 213
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Peter O'Brien 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 Peter O'Brien sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 181–200 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 184 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344 184
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Peter O'Brien 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 Peter O'Brien sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 50–51 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 51 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861 51
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2016 - Longstaff Prize, Royal Society of Chemistry (UK)
  • 1999 - Meldola Medal and Prize, Royal Society of Chemistry (UK)

Overview

Peter O'Brien is a researcher affiliated with the University of York in the United Kingdom. Their work spans the fields of Chemistry and Biochemistry, Genetics and Molecular Biology, with a strong focus on sub-disciplines such as Organic Chemistry, Molecular Biology, Materials Chemistry, Computational Theory and Mathematics, and Biomedical Engineering.

The scientist's research primarily covers topics including Chemical Synthesis and Analysis, Computational Drug Discovery Methods, Innovative Microfluidic and Catalytic Techniques Innovation, Catalytic Cross-Coupling Reactions, Coordination Chemistry and Organometallics, Crystallization and Solubility Studies, and X-ray Diffraction in Crystallography.

Selected recent publications demonstrate a concentration on fragment-based drug discovery and crystallographic screening. They include:

  • Crystallographic and electrophilic fragment screening of the SARS-CoV-2 main protease, 2020, Nature Communications
  • Fragment binding to the Nsp3 macrodomain of SARS-CoV-2 identified through crystallographic screening and computational docking, 2021, Science Advances
  • Crystallographic and electrophilic fragment screening of the SARS-CoV-2 main protease, 2020, bioRxiv (Cold Spring Harbor Laboratory)
  • Design and Synthesis of 56 Shape-Diverse 3D Fragments, 2020, Chemistry - A European Journal
  • Escape from planarity in fragment-based drug discovery: A synthetic strategy analysis of synthetic 3D fragment libraries, 2022, Drug Discovery Today

Frequent collaborators in research include James D. Firth, Hanna F. Klein, Roderick E. Hubbard, Simon Jones, and Thomas D. Downes.

Their work has appeared repeatedly in several publication venues, such as Zenodo (CERN European Organization for Nuclear Research), The Cambridge Structural Database, bioRxiv (Cold Spring Harbor Laboratory), Chemistry - A European Journal, and Nature Chemistry.

Peter O'Brien has been recognized with awards including the Longstaff Prize from the Royal Society of Chemistry (UK) in 2016 and the Meldola Medal and Prize from the same society in 1999.

Best Publications

  • Crystallographic and electrophilic fragment screening of the SARS-CoV-2 main protease.

    Alice Douangamath;Daren Fearon;Paul Gehrtz;Tobias Krojer

  • Sharpless Asymmetric Aminohydroxylation: Scope, Limitations, and Use in Synthesis.

    Peter O'Brien

  • Synthesis of Spirocyclic Indolenines

    Michael J. James;Peter O'Brien;Richard J. K. Taylor;William P. Unsworth

  • A readily-accessible (+)-sparteine surrogate

    Michael J. Dearden;Catherine R. Firkin;Jean-Paul R. Hermet;Peter O'brien

  • Recent advances in asymmetric synthesis using chiral lithium amide bases

    Peter O’Brien

  • Fragment binding to the Nsp3 macrodomain of SARS-CoV-2 identified through crystallographic screening and computational docking.

    Marion Schuller;Galen J. Correy;Stefan Gahbauer;Daren Fearon

  • Asymmetric Deprotonation of N-Boc Piperidine: React IR Monitoring and Mechanistic Aspects

    Darren Stead;Giorgio Carbone;Peter O’Brien;Kevin R. Campos

  • Silver(I)‐ or Copper(II)‐Mediated Dearomatization of Aromatic Ynones: Direct Access to Spirocyclic Scaffolds

    Michael J. James;James D. Cuthbertson;Peter O'Brien;Richard J. K. Taylor

  • Enantioselective, palladium-catalyzed α-arylation of N-Boc pyrrolidine: in situ react IR spectroscopic monitoring, scope, and synthetic applications.

    Graeme Barker;Julia L. McGrath;Artis Klapars;Darren Stead

  • Catalytic asymmetric synthesis of ferrocenes and P-stereogenic bisphosphines

    Cédric Genet;Steven J. Canipa;Peter O'brien;Sven Taylor

  • Silver(I)-Catalyzed Dearomatization of Alkyne-Tethered Indoles: Divergent Synthesis of Spirocyclic Indolenines and Carbazoles

    Michael J. James;Rosa E. Clubley;Kleopas Y. Palate;Thomas J. Procter

  • Catalyst-Driven Scaffold Diversity: Selective Synthesis of Spirocycles, Carbazoles and Quinolines from Indolyl Ynones.

    John T R Liddon;Michael J James;Aimee K Clarke;Peter O'Brien

  • A New Sparteine Surrogate for Asymmetric Deprotonation of N-Boc Pyrrolidine

    Darren Stead;Peter O'Brien;Adam Sanderson

  • Catalytic asymmetric deprotonation using a ligand exchange approach.

    Matthew J. McGrath;Peter O'Brien

  • Basic instinct: design, synthesis and evaluation of (+)-sparteine surrogates for asymmetric synthesis.

    Peter O'Brien

  • Visible-light-induced intramolecular charge transfer in the radical spirocyclisation of indole-tethered ynones.

    Hon Eong Ho;Angela Pagano;James A. Rossi-Ashton;James R. Donald

  • Evaluation of (+)-sparteine-like diamines for asymmetric synthesis.

    Michael J. Dearden;Matthew J. Mcgrath;Peter O'brien

  • Silica-Supported Silver Nitrate as a Highly Active Dearomatizing Spirocyclization Catalyst: Synergistic Alkyne Activation by Silver Nanoparticles and Silica.

    Aimee K. Clarke;Michael J. James;Peter O'Brien;Richard J. K. Taylor

  • Synthesis of P-stereogenic compounds via kinetic deprotonation and dynamic thermodynamic resolution of phosphine sulfides: opposite sense of induction using (-)-sparteine.

    Jonathan J. Gammon;Viktoria H. Gessner;Greg R. Barker;Johan Granander

  • Asymmetric deprotonation using s-BuLi or i-PrLi and chiral diamines in THF: the diamine matters.

    Giorgio Carbone;Peter O'Brien;Göran Hilmersson

  • Diamine-Free Lithiation−Trapping of N-Boc Heterocycles using s-BuLi in THF

    Graeme Barker;Peter O’Brien;Kevin R. Campos

  • An Experimental and in Situ IR Spectroscopic Study of the Lithiation–Substitution of N-Boc-2-phenylpyrrolidine and -piperidine: Controlling the Formation of Quaternary Stereocenters

    Nadeem S. Sheikh;Daniele Leonori;Graeme Barker;James D. Firth

  • Crystallographic and electrophilic fragment screening of the SARS-CoV-2 main protease

    Alice Douangamath;Daren Fearon;Paul Gehrtz;Tobias Krojer

Frequent Co-Authors

Adrian C. Whitwood
Adrian C. Whitwood University of York
Roderick E. Hubbard
Roderick E. Hubbard University of York
Jonathan Clayden
Jonathan Clayden University of Bristol
Paul R. Raithby
Paul R. Raithby University of Bath
Brian M. Stoltz
Brian M. Stoltz California Institute of Technology
Iwan J. P. de Esch
Iwan J. P. de Esch Vrije Universiteit Amsterdam
Carsten Strohmann
Carsten Strohmann TU Dortmund University
Martin E.M. Noble
Martin E.M. Noble Newcastle University
Jason E. Gestwicki
Jason E. Gestwicki University of California, San Francisco
Alan Ashworth
Alan Ashworth University of California, San Francisco

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