World's Best Scientists 2026 revealed!
Richard A. J. O'Hair

Richard A. J. O'Hair

D-Index & Metrics

Chemistry

D-Index
61
Citations
13858
World Ranking
9206
National Ranking
218

Richard A. J. O'Hair 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 Richard A. J. O'Hair 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: 399 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Richard A. J. O'Hair 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 Richard A. J. O'Hair 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: 61 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Richard A. J. O'Hair is affiliated with the University of Melbourne in Australia. Their research spans a range of topics within chemistry and materials science, with a significant focus on organic chemistry, materials chemistry, spectroscopy, inorganic chemistry, and atomic and molecular physics.

The main fields of study include:

  • Chemistry
  • Materials Science

Within these fields, subfields of study where O'Hair has contributed notably are:

  • Organic Chemistry
  • Materials Chemistry
  • Spectroscopy
  • Inorganic Chemistry
  • Atomic and Molecular Physics, and Optics

Their research topics cover diverse areas, emphasizing mass spectrometry techniques and applications, crystallization and solubility studies, X-ray diffraction in crystallography, organometallic complex synthesis and catalysis, advanced chemical physics studies, catalytic C-H functionalization methods, and carbon dioxide utilization in catalysis.

  • Mass Spectrometry Techniques and Applications
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Organometallic Complex Synthesis and Catalysis
  • Advanced Chemical Physics Studies
  • Catalytic C-H Functionalization Methods
  • Carbon dioxide utilization in catalysis

Recent publications provide insight into the scope and diversity of O'Hair's work. Selected papers include:

  • ORGANOMETALLIC GAS-PHASE ION CHEMISTRY AND CATALYSIS: INSIGHTS INTO THE USE OF METAL CATALYSTS TO PROMOTE SELECTIVITY IN THE REACTIONS OF CARBOXYLIC ACIDS AND THEIR DERIVATIVES, 2020, Mass Spectrometry Reviews
  • Type IX Secretion System Cargo Proteins Are Glycosylated at the C Terminus with a Novel Linking Sugar of the Wbp/Vim Pathway, 2020, mBio
  • Photoexcited Pd(ii) auxiliaries enable light-induced control in C(sp3)-H bond functionalisation, 2020, Chemical Science
  • Palladium-Mediated CO2 Extrusion Followed by Insertion of Isocyanates for the Synthesis of Benzamides: Translating Fundamental Mechanistic Studies To Develop a Catalytic Protocol, 2020, Organometallics
  • Tetraorganylargentate(III) Complexes: Key Intermediates in Silver-Mediated Cross-Coupling Reactions, 2021, Organometallics

O'Hair frequently publishes in several scientific venues. The most common venues of their publications include:

  • The Cambridge Structural Database
  • Organometallics
  • Journal of the American Society for Mass Spectrometry
  • Physical Chemistry Chemical Physics
  • Dalton Transactions

Collaboration is a significant aspect of their research activity, with frequent co-authors including Allan J. Canty, Weam A. O. Altalhi, Paul S. Donnelly, Alasdair I. McKay, and Z. Howard.

Best Publications

  • MR1 presents microbial vitamin B metabolites to MAIT cells

    Lars Kjer-Nielsen;Onisha G Patel;Alexandra J Corbett;Jerome Le Nours;Jerome Le Nours

  • The 3D quadrupole ion trap mass spectrometer as a complete chemical laboratory for fundamental gas-phase studies of metal mediated chemistry

    Richard A. J. O'Hair

  • Mining a tandem mass spectrometry database to determine the trends and global factors influencing peptide fragmentation.

    Eugene A. Kapp;Frédéric Schütz;Gavin E. Reid;James S. Eddes

  • Catalytic Gas Phase Oxidation of Methanol to Formaldehyde

    Tom Waters;Richard A J O'Hair;Anthony G Wedd

  • Ab Initio Studies of Amino Acid Conformations. 1. The Conformers of Alanine, Serine, and Cysteine

    Scott Gronert;Richard A. J. O'Hair

  • Gas Phase Ion Chemistry of Transition Metal Clusters: Production, Reactivity, and Catalysis

    Richard A. J. O'Hair;George N. Khairallah

  • Gas phase acidities of the α amino acids

    Richard A.J. O'Hair;John H. Bowie;Scott Gronert

  • Gas-phase reactions of protonated tryptophan.

    Hadi Lioe;Richard A. J. O’Hair;Gavin E. Reid

  • Characterization of an antagonist interleukin-6 dimer by stable isotope labeling, cross-linking, and mass spectrometry.

    Thomas Taverner;Nathan E. Hall;Richard A.J. O'Hair;Richard J. Simpson

  • Comparison of collision-induced dissociation and electron-induced dissociation of singly protonated aromatic amino acids, cystine and related simple peptides using a hybrid linear ion trap–FT-ICR mass spectrometer

    Hadi Lioe;Richard A. J. O’Hair

  • A mass spectrometric and ab initio study of the pathways for dehydration of simple glycine and cysteine-containing peptide [M+H]+ ions

    Gavin E. Reid;Richard J. Simpson;Richard A. J. O’Hair

  • Measurements of Solvent and Secondary Kinetic Isotope Effects for the Gas-Phase SN2 Reactions of Fluoride with Methyl Halides

    Richard A. J. O'Hair;Gustavo E. Davico;Jale Hacaloglu;Thuy Thanh Dang

  • Comparing the gas-phase fragmentation reactions of protonated and radical cations of the tripeptides GXR

    Sheena Wee;Richard A.J. O’Hair;W.David McFadyen

  • Do all b2 ions have oxazolone structures? Multistage mass spectrometry and ab initio studies on protonated N-acyl amino acid methyl ester model systems

    Jason M Farrugia;Richard A.J O’Hair;Gavin E Reid

  • Formation of Cationic Peptide Radicals by Gas-Phase Redox Reactions with Trivalent Chromium, Manganese, Iron, and Cobalt Complexes†

    Christopher K. Barlow;D. W.David McFadyen;Richard A.J. O'Hair

  • Gas phase studies of the Pesci decarboxylation reaction: synthesis, structure, and unimolecular and bimolecular reactivity of organometallic ions.

    Richard A J O'Hair;Nicole J Rijs

  • Leaving group and gas phase neighboring group effects in the side chain losses from protonated serine and its derivatives.

    Gavin E. Reid;Gavin E. Reid;Richard J. Simpson;Richard A. J. O’Hair

  • The role of nucleophile–electrophile interactions in the unimolecular and bimolecular gas‐phase ion chemistry of peptides and related systems†

    Richard A. J. O'Hair

  • CH Bond Activation of Methanol and Ethanol by a High‐Spin FeIVO Biomimetic Complex

    William A Donald;Christine Joy McKenzie;Richard A. J. O'Hair

  • Electron capture dissociation and infrared multiphoton dissociation of oligodeoxynucleotide dications

    Kristina Håkansson;Robert R. Hudgins;Alan G. Marshall;Richard A. J. O’Hair

  • Gas-phase synthesis of [Ag4H]+ and its mediation of the C--C coupling of allyl bromide.

    George N. Khairallah;Richard A. J. O'Hair

Frequent Co-Authors

Gavin E. Reid
Gavin E. Reid University of Melbourne
Jonathan M. White
Jonathan M. White University of Melbourne
Vlasta Bonačić-Koutecký
Vlasta Bonačić-Koutecký University of Split
Allan J. Canty
Allan J. Canty University of Tasmania
John H. Bowie
John H. Bowie University of Adelaide
Paul S. Donnelly
Paul S. Donnelly University of Melbourne
Anthony G. Wedd
Anthony G. Wedd University of Melbourne
Gabriel da Silva
Gabriel da Silva University of Melbourne
Philippe Dugourd
Philippe Dugourd Claude Bernard University Lyon 1
Richard J. Simpson
Richard J. Simpson La Trobe University

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