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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 47 15636 14101 865 773 151 8062

Jim A. Thomas publications per year

The chart shows the history of publications by Jim A. Thomas between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jim A. Thomas published across 50 years, from 1976 to 2025, averaging 3.3 papers a year. Output peaked at 12 publications in 2017. 7 of the 163 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2017. 1976: 1 publication 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 1 publication 1993: 2 publications 1994: 0 publications 1995: 1 publication 1996: 5 publications 1997: 0 publications 1998: 4 publications 1999: 0 publications 2000: 1 publication 2001: 2 publications 2002: 5 publications 2003: 3 publications 2004: 6 publications 2005: 6 publications 2006: 11 publications 2007: 4 publications 2008: 5 publications 2009: 7 publications 2010: 8 publications 2011: 7 publications 2012: 5 publications 2013: 4 publications 2014: 7 publications 2015: 8 publications 2016: 1 publication 2017: 12 publications 2018: 9 publications 2019: 5 publications 2020: 9 publications 2021: 8 publications 2022: 5 publications 2023: 3 publications 2024: 4 publications 2025: 3 publications
1976 2025

163 publications in total across all disciplines

View publications per year as a table
Jim A. Thomas: publications per year, 1976 to 2025
Year Publications
1976 1
1977 0
1978 0
1979 1
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 1
1993 2
1994 0
1995 1
1996 5
1997 0
1998 4
1999 0
2000 1
2001 2
2002 5
2003 3
2004 6
2005 6
2006 11
2007 4
2008 5
2009 7
2010 8
2011 7
2012 5
2013 4
2014 7
2015 8
2016 1
2017 12
2018 9
2019 5
2020 9
2021 8
2022 5
2023 3
2024 4
2025 3
Total 163
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Jim A. Thomas 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 Jim A. Thomas 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, 141–160 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: 151 publications — 14th percentile

14% 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 1,218 151
161–180 1,350
181–200 1,344
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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Jim A. Thomas 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 Jim A. Thomas 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, 46–47 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: 47 D-Index — 14th percentile

14% 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 47
48–49 835
50–51 861
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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Overview

Jim A. Thomas is affiliated with the University of Sheffield in the United Kingdom. Their research spans several interconnected fields primarily within Biochemistry, Genetics, and Molecular Biology, with significant contributions in Medicine.

The main fields of study include:

  • Biochemistry, Genetics and Molecular Biology
  • Medicine

They have further specialized in subfields such as:

  • Molecular Biology
  • Materials Chemistry
  • Oncology
  • Organic Chemistry
  • Biomedical Engineering

Their research focuses on various advanced topics, including:

  • Metal complexes synthesis and properties
  • DNA and Nucleic Acid Chemistry
  • Advanced biosensing and bioanalysis techniques
  • Nanoplatforms for cancer theranostics
  • Photodynamic Therapy Research Studies
  • Click Chemistry and Applications
  • Advanced Fluorescence Microscopy Techniques

Jim A. Thomas has published extensively in diverse high-profile scientific venues with the most frequent publication platforms being:

  • Chemical Science
  • Journal of the American Chemical Society
  • Dalton Transactions
  • Chemistry - A European Journal
  • The Cambridge Structural Database

Their recent papers include:

  • "A Dinuclear Ruthenium(II) Complex Excited by Near-Infrared Light through Two-Photon Absorption Induces Phototoxicity Deep within Hypoxic Regions of Melanoma Cancer Spheroids" (2020), Journal of the American Chemical Society
  • "Photoactive metal complexes that bind DNA and other biomolecules as cell probes, therapeutics, and theranostics" (2020), Chemical Communications
  • "Mononuclear ruthenium(ii) theranostic complexes that function as broad-spectrum antimicrobials in therapeutically resistant pathogens through interaction with DNA" (2020), Chemical Science
  • "Triazole-based osmium(ii) complexes displaying red/near-IR luminescence: antimicrobial activity and super-resolution imaging" (2020), Chemical Science
  • "A Dinuclear Osmium(II) Complex Near-Infrared Nanoscopy Probe for Nuclear DNA" (2021), Journal of the American Chemical Society

Frequent collaborators in their research include:

  • Simon D. Fairbanks
  • Sreejesh Sreedharan
  • Craig C. Robertson
  • Kirsty L. Smitten
  • Jorge Bernardino de la Serna

Best Publications

  • Kinetically inert transition metal complexes that reversibly bind to DNA

    Clive Metcalfe;Jim A. Thomas

  • Ruthenium(II) polypyridyl complexes and DNA—from structural probes to cellular imaging and therapeutics

    Martin R. Gill;Jim A. Thomas

  • A ruthenium( II ) polypyridyl complex for direct imaging of DNA structure in living cells

    Martin R. Gill;Jorge Garcia-Lara;Simon J. Foster;Carl Smythe

  • Dinuclear monointercalating RuII complexes that display high affinity binding to duplex and quadruplex DNA.

    Chatna Rajput;Ramune Rutkaite;Linda Swanson;Ihtshamul Haq

  • Dinuclear Ruthenium( II) Complexes as Two- Photon, Time- Resolved Emission Microscopy Probes for Cellular DNA

    Elizabeth Baggaley;Martin R. Gill;Nicola H. Green;David Turton

  • Optical imaging probes for biomolecules: an introductory perspective

    Jim A. Thomas

  • Targeting the endoplasmic reticulum with a membrane-interactive luminescent ruthenium(II) polypyridyl complex

    Martin R. Gill;Denis Cecchin;Michael G. Walker;Raminder S. Mulla

  • A Dinuclear Ruthenium(II) Complex Excited by Near-Infrared Light through Two-Photon Absorption Induces Phototoxicity Deep within Hypoxic Regions of Melanoma Cancer Spheroids.

    Ahtasham Raza;Stuart A Archer;Simon D Fairbanks;Kirsty L Smitten

  • Structural Studies on Dinuclear Ruthenium(II) Complexes That Bind Diastereoselectively to an Antiparallel Folded Human Telomere Sequence

    Tom Wilson;Paulo J. Costa;Vítor Félix;Mike P. Williamson

  • Ruthenium(II) Metallo-intercalators: DNA Imaging and Cytotoxicity

    Martin R. Gill;Hanan Derrat;Carl G. W. Smythe;Giuseppe Battaglia

  • A Multifunctional Light Switch: DNA Binding and Cleavage Properties of a Heterobimetallic Ruthenium–Rhenium Dipyridophenazine Complex†

    Simon P. Foxon;Tim Phillips;Martin R. Gill;Michael Towrie

  • Electrochemical and photophysical properties of DNA metallo-intercalators containing the ruthenium(II) tris(1-pyrazolyl)methane unit.

    Simon P. Foxon;Clive Metcalfe;Harry Adams;Michelle Webb

  • Extended terpyridyl and triazine complexes of d6-metal centres

    Clive Metcalfe;Sharon Spey;Harry Adams;Jim A. Thomas

  • Multimodal Super-resolution Optical Microscopy Using a Transition-Metal-Based Probe Provides Unprecedented Capabilities for Imaging Both Nuclear Chromatin and Mitochondria

    Sreejesh Sreedharan;Martin Gill;Esther Garcia;Hiwa K. Saeed

  • Photophysical properties and singlet oxygen production by ruthenium(II) complexes of benzo[i]dipyrido[3,2-a:2',3'-c]phenazine: spectroscopic and TD-DFT study

    Simon P. Foxon;Mohammed A. H. Alamiry;Mike G. Walker;Anthony J. H. M. Meijer

  • Locking self-assembly: strategies and outcomes

    Jim A. Thomas

  • Self-assembly of a supramolecular cube

    Sue Roche;Claire Haslam;Sarah L. Heath;Jim A. Thomas

  • Stereoisomerically controlled inorganic architectures: synthesis of enantio- and diastereo-merically pure ruthenium–palladium molecular rods from enantiopure building blocks

    Kenneth Wärnmark;Jim A. Thomas;Olga Heyke;Jean-Marie Lehn

  • Metal ion directed self-assembly of sensors for ions, molecules and biomolecules

    Jim A. Thomas

  • Studies on the interaction of extended terpyridyl and triazine metal complexes with DNA.

    Clive Metcalfe;Chatna Rajput;Jim A. Thomas

  • DNA binding of an organic dppz-based intercalator.

    Tim Phillips;Ihtshamul Haq;Anthony J. H. M. Meijer;Harry Adams

  • Differentiating quadruplexes: binding preferences of a luminescent dinuclear ruthenium(II) complex with four-stranded DNA structures.

    Tom Wilson;Mike P. Williamson;Jim A Thomas

Frequent Co-Authors

Harry Adams
Harry Adams University of Sheffield
Amitava Das
Amitava Das Indian Institute of Science Education and Research Kolkata
Vítor Félix
Vítor Félix University of Aveiro
John W. Haycock
John W. Haycock University of Sheffield
Miguel Julve
Miguel Julve University of Valencia
Giuseppe Battaglia
Giuseppe Battaglia Institute for Bioengineering of Catalonia
Michael P. Williamson
Michael P. Williamson University of Sheffield
Michael D. Ward
Michael D. Ward New York University
Sheila MacNeil
Sheila MacNeil University of Sheffield
Francesc Lloret
Francesc Lloret University of Valencia

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