World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
64
Citations
10522
World Ranking
8246
National Ranking
2381

Timothy D. Lash 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 Timothy D. Lash 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: 279 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Timothy D. Lash 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 Timothy D. Lash 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: 64 D-Index — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Overview

Timothy D. Lash is affiliated with Illinois State University in the United States and focuses primarily on materials chemistry and chemistry. Their research encompasses various subfields including materials chemistry, pulmonary and respiratory medicine, molecular biology, inorganic chemistry, and organic chemistry. The main scientific topics addressed in their work include porphyrin and phthalocyanine chemistry, photodynamic therapy research studies, metal-catalyzed oxygenation mechanisms, porphyrin metabolism and disorders, luminescence and fluorescent materials, crystallization and solubility studies, and X-ray diffraction in crystallography.

Throughout their career, Lash has published extensively, with significant contributions to the following scientific venues:

  • The Journal of Organic Chemistry
  • Molecules
  • The Cambridge Structural Database
  • Tetrahedron Letters
  • Journal of Porphyrins and Phthalocyanines

Their recent papers highlight advancements in coordination chemistry and modified porphyrinoid systems, among other topics. Notable publications include:

  • "Coordination Chemistry of Modified Porphyrinoid Systems," 2022, Chemical Reviews
  • "Synthesis and Characterization of N-Methylporphyrins, Heteroporphyrins, Carbaporphyrins, and Related Systems," 2020, The Journal of Organic Chemistry
  • "Telluracarbaporphyrins and a Related Palladium(II) Complex: Evidence for Hypervalent Interactions," 2021, Inorganic Chemistry
  • "Organometallic Chemistry within the Structured Environment Provided by the Macrocyclic Cores of Carbaporphyrins and Related Systems," 2023, Molecules
  • "Extended porphyrinoid chromophores: heteroporphyrins fused to phenanthrene and acenaphthylene," 2021, Tetrahedron

Lash frequently collaborates with other researchers, with key coauthors including Deyaa I. AbuSalim, Gregory M. Ferrence, Melissa A. Mathius, Sun T. Chaney, and Amy L. Johnson. These collaborations have contributed to the breadth and depth of Lash's research output.

Best Publications

  • Carbaporphyrinoid Systems.

    Unknown

  • Oxybenziporphyrin, a Fully Aromatic Semiquinone Porphyrin Analog with Pathways for 18π‐Electron Delocalization

    Timothy D. Lash

  • Conjugated Macrocycles Related to the Porphyrins. 12.1 Oxybenzi- and Oxypyriporphyrins: Aromaticity and Conjugation in Highly Modified Porphyrinoid Structures

    Timothy D. Lash;Sun T. Chaney;Daniel T. Richter

  • Porphyrin Synthesis by the “3+1” Approach: New Applications for an Old Methodology

    Timothy D. Lash

  • Giant Porphyrinoids: From Figure Eights to Nanomolecular Cavities.

    Timothy D. Lash

  • Azuliporphyrin: A Case of Borderline Porphyrinoid Aromaticity

    Timothy D. Lash;Sun T. Chaney

  • Recent Advances on the Synthesis and Chemistry of Carbaporphyrins and Related Porphyrinoid Systems

    Timothy D. Lash

  • Oxidation with dilute aqueous ferric chloride solutions greatly improves yields in the ‘4+1’ synthesis of sapphyrins

    Daniel T. Richter;Timothy D. Lash

  • Modification of the porphyrin chromophore by ring fusion: identifying trends due to annelation of the porphyrin nucleus

    Timothy D. Lash

  • Out of the Blue! Azuliporphyrins and Related Carbaporphyrinoid Systems.

    Timothy D. Lash

  • Benziporphyrins, a unique platform for exploring the aromatic characteristics of porphyrinoid systems

    Timothy D. Lash

  • Oxypyriporphyrin, the First Fully Aromatic Porphyrinoid Macrocycle with a Pyridine Subunit

    Timothy D. Lash;Sun T. Chaney

  • Porphyrins with exocyclic rings. 14. Synthesis of tetraacenaphthoporphyrins, a new family of highly conjugated porphyrins with record-breaking long-wavelength electronic absorptions.

    John D. Spence;Timothy D. Lash

  • Conjugated macrocycles related to the porphyrins. 21. Synthesis, spectroscopy, electrochemistry, and structural characterization of carbaporphyrins

    Timothy D. Lash;Michael J. Hayes;John D. Spence;Melanie A. Muckey

  • Porphyrins with Exocyclic Rings. 13.1 Synthesis and Spectroscopic Characterization of Highly Modified Porphyrin Chromophores with Fused Acenaphthylene and Benzothiadiazole Rings

    Timothy D. Lash;Pushpa Chandrasekar;Augustine T. Osuma;Sun T. Chaney

  • Metal Complexes of Carbaporphyrinoid Systems

    Timothy D. Lash

  • An azulene analogue of the tripyrranes and carbaporphyrinoids therefrom.

    Shelley R. Graham;Denise A. Colby;Timothy D. Lash

  • Origin of aromatic character in porphyrinoid systems

    Timothy D. Lash

  • Organometallic chemistry of azuliporphyrins: synthesis, spectroscopy, electrochemistry, and structural characterization of nickel(II), palladium(II), and platinum(II) complexes of azuliporphyrins.

    Timothy D Lash;Denise A Colby;Shelley R Graham;Gregory M Ferrence

  • Silver(III) Carbaporphyrins: The First Organometallic Complexes of True Carbaporphyrins†

    Melanie A. Muckey;Lisa F. Szczepura;Gregory M. Ferrence;Timothy D. Lash

  • Adaptation of the Rothemund reaction for carbaporphyrin synthesis: preparation of meso-tetraphenylazuliporphyrin and related benzocarbaporphyrins.

    Denise A. Colby;Timothy D. Lash

  • Carbaporphyrinoid chemistry has a silver lining! silver(III) oxybenzi-, oxynaphthi-, tropi-, and benzocarbaporphyrins.

    Timothy D. Lash;Jane M. Rasmussen;Katrina M. Bergman;Denise A. Colby

Frequent Co-Authors

Brian J. Wilkinson
Brian J. Wilkinson Illinois State University
Peter R. Jaffé
Peter R. Jaffé Princeton University
Matthias Zeller
Matthias Zeller Purdue University West Lafayette
Marcin Stępień
Marcin Stępień University of Wrocław
Lechosław Latos-Grażyński
Lechosław Latos-Grażyński University of Wrocław

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students interested in Chemistry, exploring related online degrees can open diverse career opportunities. Understanding the cost of programs is essential before enrollment. For example, if you are curious about program expenses, exploring how much is criminal justice degree can provide insight into the financial commitment involved in completing an online degree.

Those starting their educational journey might consider an online associate’s degree. Just like the best online associates in criminal justice offer a solid foundation for legal careers, similar associate programs in chemistry-related fields can prepare students for entry-level roles or transfer to a four-year institution.

Students interested in the intersection of science and law may also explore paralegal degrees, which combine legal knowledge with technical expertise. Knowing the benefits and potential income of a paralegal degree can aid in making an informed decision about career goals.

Lastly, for graduates aiming to merge chemistry knowledge with business, pharmaceutical sales represent a promising pathway. Understanding the pharma sales rep salary and career pathways can help chemistry students evaluate options beyond traditional lab roles, emphasizing the versatility of a chemistry background.

Best Scientists Citing Timothy D. Lash

Trending Scientists

Recently Published Articles